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AIR COOLER [42 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2026-01-08

English

Subject field(s)
  • Meteorology
DEF

A katabatic wind, it is formed at night by the radiational cooling along mountainsides.

CONT

... at night the air in contact with the mountain is cooler than farther from the land mass and so the cooler air sinks along the slope producing the mountain breeze.

CONT

mountain breeze ... As the slopes become colder than the surrounding atmosphere, the lower levels of air cool and drain to the lowest point of the terrain. It may reach several hundred feet in depth, and extreme cases, attain speeds of 50 knots or greater. It blows in the opposite direction of a valley breeze.

CONT

During the night, the air along the mountain slopes begins to cool quickly because of longwave radiation loss ... As the air cools, it becomes more dense and begins to flow downslope causing a mountain breeze. Convergence of the draining air occurs at the valley floor and forces the air to move vertically upward. The upward movement is usually limited by the presence of a temperature inversion which forces the air to begin moving horizontally. This horizontal movement completes the circulation cell system. In narrowing terrain, mountain winds can accelerate in speed because of the venturi effect. Such winds can attain speeds as high has 150 kilometers per hour.

French

Domaine(s)
  • Météorologie
DEF

Vent catabatique soufflant la nuit et aux premières heures après le lever du Soleil, le long des pentes, des montagnes vers les vallées ou les plaines.

CONT

Brise de pente [...] De nuit [...] l'air se refroidit au contact du sol et a tendance à descendre le long des pentes vers le fond de la vallée où s'instaure un courant général vers le bas de la vallée, c'est la brise d'amont.

Spanish

Campo(s) temático(s)
  • Meteorología
DEF

Corriente de aire que desciende a lo largo de una ladera o cauce por efecto de la gravedad, cuando su densidad es mayor que la de las capas de aire contiguas situadas al mismo nivel.

Save record 1

Record 2 2023-04-20

English

Subject field(s)
  • Computer Peripheral Equipment
DEF

[A] fan inside, or attached to, a computer case used for active cooling.

OBS

Fans are used to draw cooler air into the case from the outside, expel warm air from inside and move air across a heat sink to cool a particular component.

French

Domaine(s)
  • Périphériques (Informatique)
DEF

[...] ventilateur installé à l'intérieur d'un ordinateur ou fixé à celui-ci et utilisé pour en refroidir activement le boîtier.

OBS

Il permet un flux d'air frais vers l'intérieur et d'air chaud vers l'extérieur ou améliore la circulation d'air sur le dissipateur thermique d'un composant particulier.

Spanish

Campo(s) temático(s)
  • Equipo periférico (Computadoras)
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Record 3 2023-02-23

English

Subject field(s)
  • Atmospheric Physics
  • Environmental Studies and Analyses
CONT

Vertical atmospheric motion. Most brief but violent disturbances in Earth's wind systems involve large areas of ascending and descending air.... a thunderstorm is said to develop when the atmosphere becomes "unstable to vertical motion[. "] Such an instability can arise whenever relatively warm, light air is overlain by cooler, heavier air. Under such conditions[, ] the cooler air tends to sink, displacing the warmer air upward.

French

Domaine(s)
  • Physique de l'atmosphère
  • Études et analyses environnementales
OBS

mouvement atmosphérique vertical; mouvement vertical atmosphérique : désignations habituellement utilisées au pluriel.

Key term(s)
  • mouvements atmosphériques verticaux
  • mouvements verticaux atmosphériques

Spanish

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Record 4 2022-06-30

English

Subject field(s)
  • Metrology and Units of Measure
  • Meteorological Forecasting, Data Measurement and Analysis
  • Plant and Crop Production
DEF

A measure of the climate of a growing region calculated by adding the mean temperatures for each day (minus a base temperature) over a growing season.

CONT

Grapes begin their growth cycle in the spring when average daily temperature is about 10 °C(50 °F). To reach maturity, they require a certain amount of heat above 10 °C during the growing season. This amount of heat, called the heat summation, is calculated by totalling the number of degrees of average daily temperature over 10 °C for each day of the growing season. A heat summation of about 1, 800 is required for successful growth. If the heat summation is less than required, the grapes will not ripen; they will reach the end of the growing season with insufficient sugar and too much acidity.... Where the heat summation is much greater than required,... the grapes mature earlier and with less acidity and colour than those produced under cooler conditions. Factors influencing the heat summation of a vineyard and, therefore, grape composition include exposure... air drainage..., soil temperature(above 10 °C during the growing season), and soil moisture content...

OBS

For grapes, the base temperature is 50 degrees F (10 °C).

French

Domaine(s)
  • Unités de mesure et métrologie
  • Prévisions météorologiques et mesure et analyse des données
  • Cultures (Agriculture)
CONT

L'université de Davis a défini, à la suite de relevés effectués entre 1950 et 1960, cinq zones départageant climatiquement le vignoble californien. Ces zones ont été déterminées à partir de la somme des températures en degrés-jours relevées pendant la période de végétation, l'objectif étant au départ de permettre aux nouveaux vignerons de retenir un encépagement favorable au contexte climatique.

CONT

De nombreuses études ont démontré que l'apparition des différents stades de développement de la vigne est fortement dépendante de la température [...] La température cumulée par la plante constitue un temps thermique lequel est exprimé en fonction de la somme de degrés-jours (DJ) calculés à partir des températures journalières et diminuées de la température physiologique de base de 10 °C, au-dessous de laquelle la croissance de la vigne est inhibée [...]

Key term(s)
  • somme de degrés jours
  • somme des températures en degrés jours

Spanish

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Record 5 2016-02-25

English

Subject field(s)
  • Air Conditioning and Heating
DEF

A forced-circulation air cooler, where the coil surface capacity is augmented by a liquid spray during operation.

Key term(s)
  • spray air cooler

French

Domaine(s)
  • Conditionnement de l'air et chauffage
CONT

Dans un frigorifère ou refroidisseur d'air à pulvérisation, le refroidissement se fait par pulvérisation dans un courant d'air de l'eau réfrigérée (ou glacée). C'est un frigorifère «humide»; il peut être facilement assimilé à un laveur d'air dont la conception est sensiblement identique.

Spanish

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Record 6 2011-06-22

English

Subject field(s)
  • Air Conditioning and Heating
DEF

The ratio of the mass of water vapor in the air to the mass of dry air.

DEF

humidity mixing ratio. The mass of vapor as a fraction of the mass of dry air with which it is mixed in a moist air parcel. Numerically indistinguishable from specific humidity in all but the most humid air.

OBS

Humidity ratio is not affected by a temperature change unless it drops below the saturation temperature. Humidity ratio is useful in calculating the amount of moisture involved in a process, such as the amount removed by ventilating a stable or the amount added by an evaporative cooler used in a greenhouse. Humidity ratio is expressed as lb of water vapor per lb of dry air. Older references used grains of vapor per pound of dry air(7000 grains equal 1 lb.).

French

Domaine(s)
  • Conditionnement de l'air et chauffage
DEF

Masse de vapeur d'eau par unité de masse d'air sec.

OBS

Le nombre de grammes de vapeur d'eau par kilogramme d'air (unité g/kg) indique l'humidité spécifique. [...] Le rapport de mélange indique le nombre de grammes de vapeur d'eau par kilogramme d'air sec. Il ne se différencie que très peu de l'humidité spécifique.

Spanish

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Record 7 2011-06-22

English

Subject field(s)
  • Air Conditioning and Heating
  • Cooling and Ventilating Systems
DEF

A forced circulation air cooler wherein heat transfer is not implemented by a liquid spray while in operation.

French

Domaine(s)
  • Conditionnement de l'air et chauffage
  • Systèmes de refroidissement et de ventilation
DEF

Refroidisseur d'air à circulation forcée dans lequel l'échange thermique se fait au moyen d'une batterie froide [...] sans pulvérisation ni ruissellement d'un liquide.

Spanish

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Record 8 2010-11-08

English

Subject field(s)
  • Pipes and Fittings
  • HVAC Distribution Systems
DEF

A passageway made of sheet metal or other suitable material, not necessarily leaktight, used for conveying air or other gas at low pressures.

CONT

Duct. ... metal pipes ... round or rectangular in shape, for distributing warm air from the heating plant to the various rooms, or for conveying air from air-conditioning devices.

CONT

Forced air systems(heating)... As the hot air is delivered through the ducts and into the room through the supply outlet, cooler air from the space(room) is being returned through return grilles, into ducts and back through the central heating unit to be heated and sent back to the space. The ducts may be circular or rectangular, and their size depends on the amount of heated air which must flow through them to maintain the desired temperature of the room.

French

Domaine(s)
  • Tuyauterie et raccords
  • Distribution et évacuation (chauffage et conditionnement d'air)
DEF

Tube, conduite de forte section servant à acheminer dans un local l'air nécessaire au renouvellement de l'atmosphère ou l'air chaud provenant d'un générateur.

CONT

Les gaines destinées aux installations de chauffage par air chaud peuvent être constituées par des matériaux métalliques ou non métalliques.

OBS

gaine : terme très fréquent dans les sources européennes, mais à déconseiller dans l'usage canadien, selon l'Ordre des architectes du Québec.

OBS

La «gaine» [...] n'est parcourue que par de l'air.

Spanish

Campo(s) temático(s)
  • Tuberías y accesorios
  • Sist. de calefacción, ventilación y acondicionamiento de aire
Save record 8

Record 9 2010-02-11

English

Subject field(s)
  • Scientific Research Equipment
  • Aerodynamics and Theory of Gases
  • Aeronautical Engineering and Maintenance
OBS

a--is one which has a complete circuit, the air Passing from compressor to cooler to test section to diffuser and back to the compressor.

French

Domaine(s)
  • Matériel et équipement (Recherche scientifique)
  • Théorie des gaz et aérodynamique
  • Aérotechnique et maintenance
OBS

elles [souffleries] peuvent être à circuit ouvert c.-à-d.. que l'air pris à l'extérieur est rejeté à la sortie dans l'atmosphère, ou à retour, et dans ce cas, l'air effectue un circuit fermé.

Spanish

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Record 10 2008-02-19

English

Subject field(s)
  • Energy Transformation
  • Solar Energy
DEF

[A situation that occurs] when heat seeks to flow from a warm area(e. g., heated space) to a cooler area, such as a solar air collector at night without a reverse flow damper.

French

Domaine(s)
  • Transformation de l'énergie
  • Énergie solaire
DEF

Situation se produisant lorsque la chaleur tend à passer d'une zone chaude, par exemple un espace chauffé, à une zone froide, comme peut le faire durant la nuit un capteur solaire à air dépourvu de régulateur d'écoulement inversé.

Spanish

Save record 10

Record 11 2007-07-23

English

Subject field(s)
  • Atmospheric Physics
CONT

Thermal lift is created by areas of warm air rising from the land. As the land heats up with the warmth of the sun, the air above it will begin to warm by the heat radiating from the land. This is especially true over terrain such as a freshly plowed field or a paved parking area. As the air heats, it will begin to rise and allow cooler air to move in to replace it. This air, in turn, will heat up, rise, and you will get a continuous current of rising air. As long as the air is rising at a rate greater than a glider sinks while in flight, the glider can sustain lift.

French

Domaine(s)
  • Physique de l'atmosphère
DEF

[...] phénomène physique d'ascension [dans l'atmosphère] d'une masse d'air plus chaude que son environnement.

CONT

Une ascendance thermique est le résultat de l'échauffement ponctuel du sol sous l'action du soleil. Plus fort est le contraste de température entre le sol et l'air qui le surmonte (sol chaud, air froid), meilleures seront les ascendances. Elles apparaissent dès que le réchauffement du sol est suffisant (souvent en fin de matinée) et disparaissent plus ou moins longtemps avant le coucher du soleil.

OBS

ascendances : Mouvement verticaux de la masse d'air permettant, entre autre, de faire monter les planeurs.

Spanish

Campo(s) temático(s)
  • Física de la atmósfera
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Record 12 2006-05-17

English

Subject field(s)
  • Farming Techniques
  • Soil Improvement and Fertilizer Management
CONT

Passive Aeration Windrow Composting.... PAWS [Passively Aerated Windrow System] has two essential features, passive aeration and envelopment [...] The air in the middle of a compost pile or windrow is warmed up by the heat generated by oxidation of the waste by the decomposer organisms. Warm air naturally rises upwards and outwards of the composting mass. As nature abhors vacuum, the warm air is replaced by cooler air mostly from or through other parts of the compost, setting up a mostly internal circulation until the air is almost uniformly warm and oxygen-deficient thus creating anaerobic pockets that generate malodours.

OBS

Generally, material to be composted is collected and promptly piled into windrows which remain untouched.

OBS

Materials can be added as they become available, or stockpiled until sufficient amounts are available to make a good sized pile or windrow.

French

Domaine(s)
  • Techniques agricoles
  • Fumure et amélioration du sol
OBS

Les systèmes passifs sont les méthodes de compostage traditionnel en tas.

OBS

Ce système réclame très peu de soins. Il consiste à mettre les matières en tas et à ne plus y toucher.

Spanish

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Record 13 2005-05-16

English

Subject field(s)
  • Atmospheric Physics
CONT

The top of the inversion layer is where the air reaches its highest temperature. The air below that level cannot ascend.(Because each parcel of air below has a cooler temperature, it is therefore denser, and gravity keeps it trapped in place.)

CONT

Warm air has formed a layer on top of cooler surface air. This layer is called the temperature inversion. This means that temperatures actually rise as we measure farther up into the air. Little or no mixing occurs and concentrations of atmospheric particulate pollution and vapors are trapped below the level where temperatures again decrease with altitude. This point is referred to as the top of the inversion. Inversions can occur at the surface or aloft in the atmosphere.

CONT

... a hot-air or gas balloon attempting to descend through a subsidence inversion will find, first, a possible bump or hesitancy of the balloon to "bust" through the top of the inversion. Once through the top of the inversion, the balloon may require much more lift than was required above the inversion top to maintain the same rate of descent.

French

Domaine(s)
  • Physique de l'atmosphère
CONT

Stratopause [signifie le] sommet de la couche d'inversion dans la stratosphère supérieure, situé vers 50 à 55 km [...]

CONT

La couche d'inversion faisait environ 600 ou 700 mètres de haut. Nous décollions [en montgolfière] des environ d'Eugénie les bains, sur un plateau. [...] La visibilité horizontale était cependant limitée du fait de l'inversion. Nous décidons donc d'atteindre le sommet de l'inversion.

OBS

couche d'inversion : Couche de l'atmosphère dans laquelle la température augmente ou demeure constante avec l'altitude.

Spanish

Save record 13

Record 14 2005-04-25

English

Subject field(s)
  • Thermal Insulation
  • Spacecraft
CONT

Thermal blanketing is used to keep satellite cooler or warmer, depending on what is needed. It acts like the insulation in your house : when it's hot outside, insulation keeps cool inside and when it's cold outside, insulation keeps warm air inside. Mylar [is] a very good material for thermal blanketing. Mylar is the trademark name for a polyester film plastic discovered and manufactured by the company DuPont. Mylar has many uses, including insulation, backing for magnet tape, balloons, and as a polyester film used to cover a metallic yarn. Mylar is also used for insulation in space suits. It is moderately expensive, and moderately durable.

French

Domaine(s)
  • Isolation thermique
  • Engins spatiaux
DEF

Matériau qui a la propriété de ralentir de façon appréciable des échanges de chaleur susceptibles de se produire entre les deux milieux qu'il sépare.

OBS

Le contrôle thermique du satellite joue un rôle de protection des instruments embarqués. Les échanges de chaleur se font exclusivement par rayonnement. [...] Des matelas de superisolation participent à la régulation : Mylar, Kapton, Dacron, aluminium [...]

PHR

Couche d'isolant thermique.

Spanish

Save record 14

Record 15 2003-11-21

English

Subject field(s)
  • Climatology
DEF

... phenomena found in meteorology, [effect derived from the] wind coming down a mountain [and] warm[ing] up as it descends.

CONT

The north westerlies of summer force humid air to rise against the western mountains, causing heavy rain in the west... As the air sinks down on the eastern side of the mountains, it warms and the clouds quite often disperse. This is called the foehn effect and in summer it brings a hot, dry and very trying wind for a while to the Canterbury Plains inland of Christchurch. Then the wind becomes a southerly and for the rest of the year it brings cooler fresher air.

OBS

foehn; föhn: A warm dry wind coming off the lee slopes of a mountain range.

Key term(s)
  • Fohn effect
  • Föhn effect

French

Domaine(s)
  • Climatologie
CONT

[...] sur la face sous le vent d'un relief, soit en aval par rapport au flux général, l'air redescend le long de la pente se réchauffe par la compression qu'il subit, [...] on observe alors un temps plus sec, plus chaud et un ciel qui se dégage, c'est l'effet de foehn.

CONT

L'air se déplaçant dans le flux d'alizé et rencontrant une île monte en suivant le relief. Ce phénomène d'ascendance (provoquée) génère un refroidissement de la masse d'air, la condensation de l'eau contenue dans cette masse d'air, l'apparition de nuages et de précipitations, [...] En redescendant sur le versant sous le vent, ces masses d'air, qui ont perdu leur eau à cause des précipitations (engendrées), se retrouvent à un état d'humidité inférieur à l'état initial, et provoquent donc un effet de sécheresse sur les régions touchées. Cet effet très fréquent est nommé «Effet de Föhn ou Foehn» (et prononcé «feunn»), du nom d'un vent [chaud et sec] soufflant de l'Adriatique sur l'Autriche. Il apparaît dès qu'un vent humide rencontre une barrière montagneuse.

CONT

L'effet de foehn est également une manifestation, comme les brouillards, des topoclimats.

Key term(s)
  • effet de fohn

Spanish

Campo(s) temático(s)
  • Climatología
DEF

Proceso que da lugar a un viento cálido y seco como consecuencia de la evolución adiabática sufrida por el aire al descender, a sotavento de una cordillera, hacia la planicie; el contraste térmico se debe a que el calor latente de condensación, liberado al formarse las gotas de lluvia durante el ascenso, queda incorporado al aire descendente.

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Record 16 2003-11-06

English

Subject field(s)
  • Thermodynamics
  • Heating
DEF

... the result of air's lower density at elevated temperatures and its affinity to rise. Cooler air sinks due to the increase in density.

OBS

Convection. Process of heat [(transfer of heat) ] carried from one point to another by movement of a liquid or a gas(i. e., air). Natural convection is caused by expansion of the liquid or gas when heated. Expansion reduces the density of the medium, causing it to rise above the cooler, more dense portions of the medium. Gravity heating systems are examples of the profitable use of natural convection. The air, heated by the furnace, becomes less dense(consequently lighter) and rises, distributing heat to the various areas of the house without any type of blower. When a blower is used, the heat transfer method is called "forced convection. "

French

Domaine(s)
  • Thermodynamique
  • Chauffage
CONT

Dans la convection libre (ou naturelle), le mouvement est dû à la seule action de la pesanteur, lorsque des différences de masse volumique provenant de différences de température rompent l'équilibre hydrostatique.

OBS

La convection, qui est un mouvement ascendant et descendant des molécules d'un fluide subissant un réchauffement, est l'un des trois phénomènes de la transmission de la chaleur entre deux corps (ou fluides) à températures différentes.

OBS

natural convection; convection naturelle : termes utilisés entre autre dans le domaine du chauffage.

Key term(s)
  • convexion gravitationnelle
  • convexion propre

Spanish

Campo(s) temático(s)
  • Termodinámica
  • Calefacción
DEF

Convección debida a una diferencia de densidades entre diferentes partes de un fluido.

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Record 17 2003-10-09

English

Subject field(s)
  • Meteorology
  • Thermodynamics
  • Fluid Mechanics and Hydraulics (Physics)
DEF

Convection caused by density differences within the air.

CONT

Free convection is the rising of heated air and the sinking of cooler air without the need of external forces.

CONT

Convection ... is a principal means of energy transfer. Distinction is made between free convection (gravitational or buoyant convection), motion caused only by density differences within the fluid; and forced convection, motion induced by mechanical forces such as deflection by a large-scale surface irregularity, turbulent flow caused by friction at the boundary of a fluid, or motion caused by any applied pressure gradient. Free and forced convection are not necessarily exclusive processes. On a windy day with overcast sky, the heat exchange between ground and air is an example of forced convection. On a sunny day with a little wind where the ground temperature rises, both kinds of convection take place.

French

Domaine(s)
  • Météorologie
  • Thermodynamique
  • Mécanique des fluides et hydraulique (Physique)
DEF

Convection provoquée par des différences de densité de l'air.

CONT

[La] convection naturelle [...] est causée par le réchauffement diurne de la surface terrestre, résultant souvent en la formation de nuages Cumulus.

Spanish

Campo(s) temático(s)
  • Meteorología
  • Termodinámica
  • Mecánica de fluidos e hidráulica (Física)
DEF

Convección producida por diferencias de densidad dentro del aire.

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Record 18 2002-12-10

English

Subject field(s)
  • Cryogenics
  • Spacecraft
CONT

The long-life, low-vibration ISSC [Improved Standard Spacecraft Cryocooler] cooler incorporated in the CSE [Cryo System Experiment] is an improved version of the 65 K Standard Spacecraft Cryocooler(SSC) developed by Hughes for the U. S. Air Force.

French

Domaine(s)
  • Cryogénie
  • Engins spatiaux

Spanish

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Record 19 2002-10-31

English

Subject field(s)
  • Residential Architecture
  • Building Ventilation
CONT

The ethnographic museum occupies a restored Qatari house with a wind tower, built in the early 20th century. Wind towers were a feature of traditional houses; they caught even the slightest breeze and funnelled the cooler air down into the house.

CONT

Wind Tower. A handful still exist in most of the region’s cities, sometimes on people’s homes, and sometimes carefully preserved or reconstructed at museums. ... Traditional wind towers rise five or six meters above a house. They are usually built of wood or stone but can also be made from canvas. The tower is open on all four sides and catches even small breezes. The breeze create a low pressure zone which will draw air up from the house causing to create natural ventilation. The towers work amazingly well. Sitting beneath a wind tower even on a hot day you will feel a consistent breeze even when the outside air feels heavy and still.

French

Domaine(s)
  • Architecture d'habitation
  • Ventilation (Construction)
CONT

En Oman, où le climat est dur, chaud et humide, les pêcheurs du bord de mer se sont dotés d'un habitat très élaboré, conçu de manière à assurer un certain confort thermique. Il comporte deux parties dans la même cour : des pièces d'hiver aux murs de terre épais, dont l'inertie thermique permet d'avoir chaud la nuit et de retransmettre la fraîcheur nocturne pendant le jour; des pièces d'été en côtes de palme juxtaposées verticalement et liées, laissant passer le vent. Le dispositif est complété par les «tours à vent» en poteaux de bois, supportant quatre grandes pièces de tissu disposées selon les diagonales, de manière à capter les vents venant de toutes les directions. Le flux d'air est aspiré naturellement vers le bas, créant dans la pièce située au-dessous un courant d'air rafraîchissant.

CONT

Visitez la dernière tour à vent du Qatar, un exploit architectural grâce auquel les maisons étaient «climatisées» avant que n'apparaissent l'électricité.

CONT

Le musée ethnographique occupe une maison qatarie comprenant une tour à vent construite au début du XXe siècle. Les maisons traditionnelles étaient équipées de tours à vent. Elles pouvaient capter la moindre brise et l'acheminer à l'intérieur de la maison.

Spanish

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Record 20 2002-09-05

English

Subject field(s)
  • Thread Spinning (Textiles)
CONT

air conditioning : A chemical process for sealing short, fuzzy fibers into a yarn. Fabrics made from air-conditioned yarns are porous. Because they allow more air circulation, these fabrics are also cooler.

French

Domaine(s)
  • Filature (Textiles)

Spanish

Save record 20

Record 21 2002-09-05

English

Subject field(s)
  • Thread Spinning (Textiles)
CONT

air conditioning : A chemical process for sealing short, fuzzy fibers into a yarn. Fabrics made from air-conditioned yarns are porous. Because they allow more air circulation, these fabrics are also cooler.

French

Domaine(s)
  • Filature (Textiles)

Spanish

Save record 21

Record 22 2002-08-13

English

Subject field(s)
  • Textiles: Preparation and Processing
DEF

A chemical process for sealing short, fuzzy fibers into a yarn. Fabrics made from air-conditioned yarns are porous. Because they allow more air circulation, these fabrics are also cooler.

French

Domaine(s)
  • Apprêt et traitements divers (Textiles)

Spanish

Save record 22

Record 23 2001-02-28

English

Subject field(s)
  • Building Insulation and Acoustical Design
  • Thermal Insulation
  • Floors and Ceilings
CONT

Why Floor Insulation Works. Heat doesn’t rise. The myth that heat rises was used for many years to justify not insulating floors at all. That led to some very cold feet. It's hot air that rises. An air mass that is warmer than the air around it will rise in relation to that cooler air. The process of hot air rising is called convection. It's only one way that heat can escape a building. Two others are conduction and radiation. Floor insulation limits all three modes of heat loss. A warmer floor reduces the temperature difference that drives convection. Floor insulation also directly impedes conduction and radiation to the colder air below the floor.

French

Domaine(s)
  • Isolation et acoustique architecturale
  • Isolation thermique
  • Planchers et plafonds
CONT

Si l'on veut rendre un chalet d'été facile à chauffer et relativement confortable durant toute l'année, l'isolation de toutes les parois, murs, plafond et plancher, est essentielle. Cependant, à cause du contact étroit que nous avons avec le sol, l'isolation du plancher est particulièrement importante. En effet, même chez les individus convenablement chaussé un plancher froid crée une sensation d'inconfort.

Spanish

Save record 23

Record 24 2001-02-22

English

Subject field(s)
  • HVAC Distribution Systems
DEF

Condition during which cooler supply air flows to the lowest level of the room.

French

Domaine(s)
  • Distribution et évacuation (chauffage et conditionnement d'air)

Spanish

Save record 24

Record 25 2000-02-29

English

Subject field(s)
  • Chemistry
  • Air Conditioning and Heating
DEF

That temperature which would result if the psychometric process occurring in a dehumidifier, humidifier, or surface cooler were carried to the saturation condition of the leaving air while maintaining the same ratio of sensible to total heat load in the process.

DEF

The dewpoint of the humid air leaving the cooling coil of an air conditioner.

Key term(s)
  • apparatus dewpoint

French

Domaine(s)
  • Chimie
  • Conditionnement de l'air et chauffage
DEF

Point de rosée de l'air humide quittant la batterie froide d'un conditionneur d'air.

OBS

Point de rosée : Le point de rosée ou la température de rosée est la température à laquelle l'air humide, en se refroidissant progressivement, arrive à saturation.

Spanish

Save record 25

Record 26 1999-12-06

English

Subject field(s)
  • Air Conditioning and Heating
DEF

Evaporative type cooler in which air is drawn through porous mats soaked with water.

DEF

An air cooler containing evaporative pads(usually of wood fibres) through which a fan pulls air through the pads.

French

Domaine(s)
  • Conditionnement de l'air et chauffage
DEF

Refroidisseur d'air constitué par des tampons ou bourrages (généralement en fibres de bois) arrosés d'eau, et au travers desquels un ventilateur aspire l'air.

Key term(s)
  • refroidisseur d'air à tampons humides

Spanish

Save record 26

Record 27 1999-11-30

English

Subject field(s)
  • Air Conditioning and Heating
  • Cooling and Ventilating Systems
DEF

An air cooler depending on natural convection for air circulation.

French

Domaine(s)
  • Conditionnement de l'air et chauffage
  • Systèmes de refroidissement et de ventilation
CONT

refroidisseur à convection naturelle [...] : l'air circule par suite de la différence entre les masses volumiques de l'air à l'entrée et à la sortie de la batterie froide.

Spanish

Save record 27

Record 28 1999-10-27

English

Subject field(s)
  • HVAC Distribution Systems
  • Building Ventilation
DEF

a series of ducts, elbows, and connectors to convey air from one location to another.

CONT

The ductwork is used to take the forced warm air from the furnace to the supply outlet and the cooler air from the return register back to the furnace.

CONT

In designing a duct system for air conditioning, we must first determine air-outlet locations.

French

Domaine(s)
  • Distribution et évacuation (chauffage et conditionnement d'air)
  • Ventilation (Construction)
DEF

Système de conduits pour la distribution et la reprise de l'air.

CONT

Dans une installation de conditionnement d'air, les gaines (ou conduits) d'air s'imposeront chaque fois qu'il s'agira de canaliser l'air traité vers les points de distribution (bouches de soufflage) plus ou moins éloignés de la «centrale» de traitement. [...] On commence par étudier [...] le plan de la construction même du bâtiment car [...] c'est bien de la structure de ce dernier que dépendra le tracé final [...] du réseau de gaines [...]

Spanish

Save record 28

Record 29 1999-05-02

English

Subject field(s)
  • Meteorology
  • Atmospheric, Climatic and Meteorological Phenomena
CONT

All clouds, from the puffy cumulus to the wispy cirrus, is a portion of air that has condensed into visible moisture. Cooling of such a portion of air to its dew point is by far the main reason for cloud formation. The main cause for the cooling lies in some process which causes air to rise or be forced upward. Large warm air masses may slide up the slope of a colder heavier mass of air. As the warmer air overrides the cooler, the warm air expands and is cooled itself by the expansion of air molecules, thus finally reaching a dew-point temperature resulting in widespread cloudiness. All clouds consist of minute water droplets, ice crystals, or a combination of both.

OBS

The term "cloud formation", in cloud physics, can also mean "a particular arrangement of cloud, a striking development of a cloud".

French

Domaine(s)
  • Météorologie
  • Phénomènes météorologiques, climatiques et atmosphériques
CONT

Notions sur la formation des nuages. S'il est suffisamment refroidi, l'air chargé de vapeur d'eau devient saturé; un refroidissement plus poussé peut en provoquer la condensation sur des corpuscules d'impuretés en suspension dans l'atmosphère (noyaux de condensation), entraînant ainsi la formation des gouttelettes d'eau qui constituent les nuages.

OBS

Ne pas confondre la «formation des nuages» avec la «formation nuageuse», deux notions qui incidemment se rendent par le même terme en anglais «cloud formation».

Spanish

Save record 29

Record 30 1993-01-26

English

Subject field(s)
  • Motor Vehicles and Bicycles
CONT

This method of coolant circulation allows the tubular intake manifold system, and the air it handles, to stay cooler and denser.

French

Domaine(s)
  • Véhicules automobiles et bicyclettes

Spanish

Save record 30

Record 31 1991-03-12

English

Subject field(s)
  • Burners and Steamfitting
CONT

Soft, Lazy Flame. This condition appears only when just enough primary air is admitted to the burner to cause the yellow tips to disappear. The inner cone and the outer envelope will not be as clearly defined as they are in the correct, blue flame. This type of flame is best for high-low operation. It is not suitable, however, wherever there may be a shortage of secondary air. This flame will burn blue in the open air; however, when it touches a cooler surface, soot will be deposited on that surface.

French

Domaine(s)
  • Fumisterie et brûleurs
CONT

Grâce à ce dispositif [accroche-flamme], très utile pour les foyers longs et étroits, la flamme dite accrochée pénètre toute formée et chaude [dans le foyer de la chaudière]. De plus, la flamme accrochée est plus propice que la flamme molle (son contraire), pour l'utilisation des fluides plus visqueux.

Spanish

Save record 31

Record 32 1990-09-04

English

Subject field(s)
  • General Scientific and Technical Vocabulary
  • Cooling and Ventilating Systems
  • Aeronautical Engineering and Maintenance
OBS

(...) the air passing from compressor to cooler to test section to diffuser and back to the compressor.

French

Domaine(s)
  • Vocabulaire technique et scientifique général
  • Systèmes de refroidissement et de ventilation
  • Aérotechnique et maintenance
CONT

Dans les souffleries à vitesse élevée, comme celle de Modane, cet air s'échauffe au cours de son circuit et un dispositif de refroidissement doit être installé.

Spanish

Save record 32

Record 33 1986-10-08

English

Subject field(s)
  • Aircraft Systems
CONT

Ventilating air for cooling the generator, the oil cooler, and the APU compartment is obtained from the aft accessory compartment and is ducted through a fire isolation valve into the APU enclosure.... The remainder of the ventilating air is ducted into the APU-driven cooling fan which forces the air through the APU oil cooler into the general compartment. Some of the fan air is diverted from the oil cooler into a distribution duct which directs cooling air to the APU enclosure. The compartment is vented through a sound suppressing muffler and thence overboard by an air discharge duct.

French

Domaine(s)
  • Circuits des aéronefs
OBS

gaine d'évacuation : terme accepté par le Comité d'étude de la terminologie des cartes de travail du DC-9.

Spanish

Save record 33

Record 34 1986-09-25

English

Subject field(s)
  • Aircraft Propulsion Systems
CONT

The compartment cooling air fan is located on the APU left side just aft of the generator. The fan is driven by the accessory drive and draws air through a flapper valve mounted on the exterior surface of the APU enclosure left side. Cooling air supplied by the fan from the aft accessory compartment is blown into the system through a bifurcated duct attached to the aft side of the fan housing. This duct diverts a portion of air through the oil cooler and allows the remainder to be used for generator and APU compartment cooling. Air for cooling the generator flows through a crossover duct attached to the blast cap on the end of the generator. Air for cooling the compartment is allowed to escape into the area surrounding the APU by means of a slot in the lower surface of the generator crossover duct.

French

Domaine(s)
  • Propulsion des aéronefs
OBS

chapeau de refroidissement : terme accepté par le Comité de la terminologie des cartes de travail du DC-9.

Spanish

Save record 34

Record 35 1985-11-01

English

Subject field(s)
  • Cooling and Ventilating Systems
  • Thermodynamics
CONT

The circulation of heated air between adjacent rooms and different levels can be improved by using vents. Properly located floor vents can assist the natural convection cycle of rising warm air and falling cool air by providing a path. For example, the central stairway in a two-storey home allows warm air to reach the second floor, but circulation is limited because there is little return of displaced air back to the ground floor. Add one or two floor vents near outside walls and the cooler air upstairs will flow down through the vents and back towards the heater.

French

Domaine(s)
  • Systèmes de refroidissement et de ventilation
  • Thermodynamique

Spanish

Save record 35

Record 36 1985-10-31

English

Subject field(s)
  • Heating
  • Types of Hearths (Heating)
CONT

Circulating space heaters have a metal shell surrounding the inner fire chamber. Natural or fan assisted convection moves air between the two shells and back into the room. An added benefit is the cooler outside metal surface that the air movement provides.

French

Domaine(s)
  • Chauffage
  • Types de foyers (Chauffage)

Spanish

Save record 36

Record 37 1983-12-07

English

Subject field(s)
  • Climate-Control Equipment (Motor Vehicles)
OBS

(...) the effective outer surface of the cylinder is increased by the addition of flanges or spines cast thereon, and the air is depended on to rise from the cylinder as heated and be replaced by cooler air.

French

Domaine(s)
  • Système de conditionnement de l'air (Véhicules automobiles)
OBS

pour augmenter l'étendue de la surface en contact avec l'air, les parois extérieures du moteur sont munies d'ailettes.

Spanish

Save record 37

Record 38 1981-04-01

English

Subject field(s)
  • Cooling and Ventilating Systems
CONT

An atmospheric cooler is an air scrubber; all matter entrained by the cooling air is transferred to the circulating water.

French

Domaine(s)
  • Systèmes de refroidissement et de ventilation
CONT

Un réfrigérant atmosphérique est un laveur d'air; tous les éléments véhiculés par l'air de refroidissement sont retenus par l'eau de circulation.

Spanish

Save record 38

Record 39 1981-01-26

English

Subject field(s)
  • Air Conditioning and Heating
  • Water Treatment (Water Supply)
OBS

Compression raises the temperature of the air considerably. It is then fed through a water-cooled heat exchanger/cooler before passing to the drier system.

French

Domaine(s)
  • Conditionnement de l'air et chauffage
  • Traitement des eaux
OBS

La compression provoque un échauffement important de l'air qu'on fait alors passer sur un échangeur-refroidisseur à circulation d'eau avant de le diriger vers les organes de dessiccation.

Spanish

Save record 39

Record 40 1981-01-26

English

Subject field(s)
  • Thermodynamics
  • Air Conditioning and Heating
  • Water Treatment (Water Supply)
OBS

The air is first fed to a cooler unit where much of the water vapour it contains condenses.

French

Domaine(s)
  • Thermodynamique
  • Conditionnement de l'air et chauffage
  • Traitement des eaux
OBS

L'air passe d'abord dans un groupe frigorifique où son refroidissement [sic] provoque la condensation d'une grande partie de la vapeur d'eau qu'il contient.

Spanish

Save record 40

Record 41 1981-01-26

English

Subject field(s)
  • Mechanical Components
OBS

Compression raises the temperature of the air considerably. It is then fed through a water-cooled heat exchanger/cooler before passing to the drier system.

French

Domaine(s)
  • Composants mécaniques
OBS

La compression provoque un échauffement important de l'air qu'on fait alors passer sur un échangeur-refroidisseur à circulation d'eau avant de le diriger vers les organes de dessiccation.

Spanish

Save record 41

Record 42 1979-03-14

English

Subject field(s)
  • Breadmaking
CONT

Bread cooling, slicing and wrapping. Bread leaving the oven should be cooled [to render the loaf suitable for slicing and wrapping]. In small bakeries it is usually placed on mobile racks, leaving a space between each loaf [so that air can circulate between them], and wheeled into a cool room. Large bakeries may use a travelling cooler through which the loaves travel in a cool atmosphere, sometimes in washed and cool air, before being conveyed to the slicing loaves travel in a cool atmosphere, sometimes in washed and cool air, before being conveyed to the slicing machine.

French

Domaine(s)
  • Boulangerie
CONT

Le pain cuit, qui sort du four, est, à l'intérieur, saturé de vapeur d'eau, d'une quantité notable de gaz carbonique et d'un peu de vapeur d'alcool. Mais parallèlement à son refroidissement ce contenu se modifie (...) Il en résulte une perte de substance sensible, qui se poursuit jusqu'au complet refroidissement du pain et représente de 2 à 3 % de son poids.

Spanish

Save record 42

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