TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

Cooling a space [object or substance] air cooled by natural convection.  1, record 1, English, - natural%2Dconvection%20cooling

Record number: 1, Textual support number: 1 OBS

Cooling system ... In some cases direct contact with ambient air (free convection) may be sufficient; in other cases it may be necessary to employ forced convection ...  4, record 1, English, - natural%2Dconvection%20cooling

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Refroidissement par de l'air ou un gaz circulant par convection naturelle sur une surface froide.  4, record 1, French, - refroidissement%20par%20convection%20naturelle

Record number: 1, Textual support number: 1 CONT

Refroidissement par l'air ambiant. Il est souvent suffisant pour les moteurs de petite puissance : la transmission de chaleur est en général favorisée par la présence d'ailettes qui augmentent considérablement la surface d'échange entre organes et air.  3, record 1, French, - refroidissement%20par%20convection%20naturelle

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

A dimensionless number used in the study of free convection of a fluid caused by a hot body, equal to the product of the fluid's coefficient of thermal expansion, the temperature difference between the hot body and the fluid, the cube of a typical dimension of the body and the square of the fluid's density, divided by the square of the fluid's dynamic viscosity.  1, record 2, English, - Grashof%20number

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

[...] nombre [qui] caractérise le rapport qui s'établit entre la surface ascensionnelle de l'élément de volume et les forces de viscosité qu'il subit.  1, record 2, French, - nombre%20de%20Grashof

Record number: 2, Textual support number: 1 OBS

Convection libre ou naturelle.  1, record 2, French, - nombre%20de%20Grashof

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

The level at which a parcel of air lifted adiabatically would first become warmer than its surroundings.  1, record 3, English, - level%20of%20free%20convection

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 DEF

Niveau à partir duquel une particule d'air soulevée adiabatiquement devient plus chaude que l'air ambiant.  1, record 3, French, - niveau%20de%20convection%20libre

Record 3,  Textual support,  Spanish

Record number: 3, Textual support number: 1 DEF

Nivel en el que una partícula de aire elevada adiabáticamente está más caliente que el aire ambiente.  1, record 3, Spanish, - nivel%20de%20convecci%C3%B3n%20libre

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 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.  4, record 4, English, - natural%20convection

Record number: 4, Textual support number: 1 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."  5, record 4, English, - natural%20convection

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 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.  2, record 4, French, - convection%20naturelle

Record number: 4, Textual support number: 1 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.  4, record 4, French, - convection%20naturelle

Record number: 4, Textual support number: 2 OBS

natural convection; convection naturelle : termes utilisés entre autre dans le domaine du chauffage.  5, record 4, French, - convection%20naturelle

Record 4,  Textual support,  Spanish

Record number: 4, Textual support number: 1 DEF

Convección debida a una diferencia de densidades entre diferentes partes de un fluido.  2, record 4, Spanish, - convecci%C3%B3n%20natural

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 DEF

Convection caused by density differences within the air.  3, record 5, English, - free%20convection

Record number: 5, Textual support number: 1 CONT

Free convection is the rising of heated air and the sinking of cooler air without the need of external forces.  4, record 5, English, - free%20convection

Record number: 5, Textual support number: 2 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.  5, record 5, English, - free%20convection

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 DEF

Convection provoquée par des différences de densité de l'air.  1, record 5, French, - convection%20libre

Record number: 5, Textual support number: 1 CONT

[La] convection naturelle [...] est causée par le réchauffement diurne de la surface terrestre, résultant souvent en la formation de nuages Cumulus.  2, record 5, French, - convection%20libre

Record 5,  Textual support,  Spanish

Record number: 5, Textual support number: 1 DEF

Convección producida por diferencias de densidad dentro del aire.  1, record 5, Spanish, - convecci%C3%B3n%20libre