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GAS COOLER [7 records]

Record 1 2024-08-14

English

Subject field(s)
  • Metrology and Units of Measure
  • Atmospheric Physics
  • Heating
DEF

... the annual sum of daily mean temperature above 18 [degrees Celsius].

CONT

Heating degree days(HDDs) give an indication of the amount of space heating(e. g., from a gas boiler/furnace, baseboard electric heating or fireplace) that may be required to maintain comfortable conditions inside a building during cooler months.

OBS

heating degree day; HHD: designations usually used in the plural.

Key term(s)
  • heating degree-day
  • heating degree days
  • heating degree-days
  • HDDs

French

Domaine(s)
  • Unités de mesure et métrologie
  • Physique de l'atmosphère
  • Chauffage
DEF

Somme annuelle de la température moyenne quotidienne au-dessous de 18 [degrés Celsius].

CONT

Les degrés-jours de chauffage (DJC) donnent une indication de la quantité de chauffage des bâtiments (par exemple, à partir d'une chaudière à gaz, d'un chauffage électrique par plinthes ou d'un foyer) qui peut être nécessaire pour maintenir des conditions confortables à l'intérieur d'un bâtiment pendant les mois les plus frais.

OBS

degré-jour de chauffage; degré-jour de chauffe : désignations habituellement utilisées au pluriel.

Key term(s)
  • degrés-jours de chauffage
  • degrés-jours de chauffe

Spanish

Campo(s) temático(s)
  • Metrología y unidades de medida
  • Física de la atmósfera
  • Calefacción
DEF

Forma de día-grado que se emplea como índice de consumo de combustible para calefacción.

OBS

Se considera como un día-grado de calefacción cada grado que la temperatura media diaria es inferior a una de referencia; por ejemplo, 19°C [65°F].

Save record 1

Record 2 2023-03-07

English

Subject field(s)
  • Atmospheric Physics
  • Geochemistry
  • Environment
CONT

Ocean atmosphere carbon exchange. Carbon dioxide... is a soluble gas [that] dissolves in the oceans and is taken up by marine plants(phytoplankton). A natural cycle results in which CO2 is absorbed from the atmosphere in some(generally cooler and more biologically active) parts of the ocean and released back to the atmosphere in other(generally warmer and less biologically active) parts.

OBS

ocean-atmosphere CO2 exchange: written ocean-atmosphere CO2 exchange.

OBS

ocean-air CO2 exchange: written ocean-air CO2 exchange.

OBS

air-sea CO2 exchange: written air-sea CO2 exchange.

Key term(s)
  • ocean-atmosphere carbon exchange

French

Domaine(s)
  • Physique de l'atmosphère
  • Géochimie
  • Environnement
OBS

échange de CO2 océan-atmosphère : s'écrit échange de CO2 océan-atmosphère.

Spanish

Save record 2

Record 3 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.

Save record 3

Record 4 2001-06-06

English

Subject field(s)
  • Astronomy
CONT

The "dark-line spectrum, "or "absorption-line spectrum, "is a continuous spectrum except where it is interrupted by dark lines. Cooler gas intervenes between the source of the continuous spectrum and the observer. The intervening gas is opaque to the wavelengths it emits in the same conditions.

French

Domaine(s)
  • Astronomie
CONT

Un exemple de formation gazeuse dense et massive est fourni par les étoiles. Bien que leur rayonnement rappelle celui de Planck, on observe dans leurs spectres un grand nombre de raies sombres («spectre d'absorption») dont l'existence n'est pas vérifiée par la formule de Planck.

Spanish

Save record 4

Record 5 1986-01-30

English

Subject field(s)
  • Astronomy
DEF

In this zone, located just below the photosphere, heat energy is transported by convection; hot volumes of gas rise, appear as bright granules and dissipate their energy at the photosphere; the cooler gases sink back into the zone.

CONT

This is because the density of H- is greatly reduced in the photosphere (compared to the upper convection zone) so that, although H- is the major absorbing constituent in the photosphere, it is not plentiful enough to almost cut off the flow of photons as it does in the convection zone.

French

Domaine(s)
  • Astronomie
CONT

D'autre part, l'énergie mécanique qui vient de la zone convective traverse la photosphère et se dissipe sous forme de chaleur dans les couches plus élevées (chromosphère et couronne).

CONT

Il se formera alors une zone convective : des bulles géantes de gaz chaud monteront, des colonnes de gaz froid descendront, de manière à mesurer un transfert rapide de la chaleur.

Spanish

Save record 5

Record 6 1985-11-01

English

Subject field(s)
  • Chimneys (Building Elements)
  • HVAC Distribution Systems
CONT

In addition to the ... all purpose chimneys, there are two types of vents, used with gas heating ... Type BW vents are similar to Type B, but they are oval shaped for use in confined areas such as between framing joints. These vents may be used in new installations and as liners in existing masonry chimneys. They are totally inadequate for use with wood or other solid fuel-burning appliances.

OBS

Type B vents are designed to be used with the cooler, cleaner by-products of natural gas or propane combustion.

Key term(s)
  • class BW vent
  • type BW vent

French

Domaine(s)
  • Cheminées (Éléments du bâtiment)
  • Distribution et évacuation (chauffage et conditionnement d'air)
Key term(s)
  • évent de type BW

Spanish

Save record 6

Record 7 1975-03-11

English

Subject field(s)
  • Chemistry
  • Aerodynamics and Theory of Gases
DEF

Transpiration of gas through a capillary tube between enclosures orig. at the same pressure but at different temperatures wherein the movement is from the cooler to the warmer chamber.

French

Domaine(s)
  • Chimie
  • Théorie des gaz et aérodynamique
CONT

le flux de gaz transporté est, pour des canaux très petits, proportionnel à la différence des pressions et à la racine carrée de la température. [...] dans les pays anglo-saxons [on a donné à ce phénomène le nom] de transpiration.

Spanish

Save record 7

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