convection


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convection
Air heated by a space heater rises and is replaced by cool air, creating a convection current that circulates hot air throughout a room.

con·vec·tion

 (kən-vĕk′shən)
n.
1. The act or process of conveying; transmission.
2. Physics
a. Heat transfer in a gas or liquid by the circulation of currents from one region to another.
b. Fluid motion caused by an external force such as gravity.
3. Meteorology The transfer of heat or other atmospheric properties by massive motion within the atmosphere, especially by such motion directed upward.

[Late Latin convectiō, convectiōn-, from convectus, past participle of convehere, to carry together : Latin com-, com- + Latin vehere, to carry; see wegh- in Indo-European roots.]

con·vec′tion·al adj.
con·vec′tive adj.
con·vec′tive·ly adv.

convection

(kənˈvɛkʃən)
n
1. (General Physics) a process of heat transfer through a gas or liquid by bulk motion of hotter material into a cooler region. Compare conduction1
2. (Physical Geography) meteorol the process by which masses of relatively warm air are raised into the atmosphere, often cooling and forming clouds, with compensatory downward movements of cooler air
3. (Geological Science) geology the slow circulation of subcrustal material, thought to be the mechanism by which tectonic plates are moved
[C19: from Late Latin convectiō a bringing together, from Latin convehere to bring together, gather, from vehere to bear, carry]
conˈvectional adj
conˈvective adj

con•vec•tion

(kənˈvɛk ʃən)

n.
1. the transfer of heat by the circulation or movement of the heated parts of a liquid or gas.
2. the vertical transport of atmospheric properties, esp. upward (disting. from advection).
3. the act of conveying or transmitting.
[1615–25; < Late Latin]
con•vec′tion•al, adj.
click for a larger image
convection
Air heated by a space heater rises, then cools and falls to be heated and rise again. This cycle creates a convection current that circulates hot air throughout a room.

con·vec·tion

(kən-vĕk′shən)
The transfer of heat energy through liquids and gases by the movement of molecules. When molecules of the liquid or gas come in contact with a source of heat, they move apart and away from the source of heat, and cooler molecules take their place. Eventually, as the cooler molecules are heated, they move as well, and a convection current forms, transferring the heat. See Note at conduction.

convection

the vertical movement of elements of the atmosphere. Cf. advection.
See also: Atmosphere

convection

1. The upward motion of a body of air which transfers heat from ground level to the upper part of the atmosphere.
2. Heat transfer by means of currents circulating through fluids.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.convection - the transfer of heat through a fluid (liquid or gas) caused by molecular motionconvection - the transfer of heat through a fluid (liquid or gas) caused by molecular motion
temperature change - a process whereby the degree of hotness of a body (or medium) changes
2.convection - (meteorology) the vertical movement of heat or other properties by massive motion within the atmosphere
meteorology - the earth science dealing with phenomena of the atmosphere (especially weather)
natural action, natural process, action, activity - a process existing in or produced by nature (rather than by the intent of human beings); "the action of natural forces"; "volcanic activity"
Translations
إنْتِقال الحَرارة بِالحَمْل، نَقل حَراري
prouděnívedení
konvektionvarmestrømning
hõáramlás
varmaburîur
konvekcija
konvekcija
prúdenie
iletimkonveksiyon

convection

[kənˈvekʃən] Nconvección f

convection

[kənˈvɛkʃən]
nconvection f
modif [current, cell] → de convection convection ovenconvection oven nfour m à convection

convection

nKonvektion f

convection

[kənˈvɛkʃn] nconvezione f

convection

(kənˈvekʃən) noun
the passing of heat through liquids or gases by means of currents.
References in periodicals archive ?
Each of these segments is equipped with heating and temperature measuring wiring controlled by a computer program so as to maintain a surface temperature equal to the skin temperature of a person in a state of thermal comfort at the actual activity level, and thus realistically to recreate the free convection flow surrounding the human body.
The result is said to be the first new and intact oak barrel to be toasted by a self-contained convection oven.
Mix a generous amount of low-to mid-level moisture and conditional instability with an abundance of outside energy (or lift) and you can brew some serious convection.
The IFB 30SC4 30-litre convection microwave oven is a delight for those who love to cook something different every day.
The natural heat transfer convection is a mode in which the movement of the fluid is simply the result of the difference in density between the hot and cold regions of the fluid in the presence of a gravitational field.
There is an urgent need for more actionable and reliable climate information on regional to local scales that cannot be delivered by state-of-the-art dynamical climate models because of their inability to explicitly simulate key processes such as deep convection or the interaction of atmospheric flow with the surface (e.
Nanofluid Technologies and Thermal Convection Techniques
Vulcan has announced the unveiling of its VC5G gas convection oven.
The results for velocity and temperature distribution reveal the flow kinematics under the effects of key physical parameters of the problem namely non linear shrinking parameter s, magnetic parameter M, porosity parameter K, mixed convection parameter and Prandtl number Pr .
com)-- Mississauga, ON-based restaurant equipment specialists, Zanduco Restaurant Equipment & Supplies are now inviting clients to review their sale pricing on the Blodgett SHO-E Convection Oven.
Previously, the process required two separate preheating systems (a contact press and a convection oven), along with the associated labor to load both systems.
Kakac, Yener, and Pramuanjaroenkij offer this graduate text on convection with a practical focus, illustrating concepts with industry applications and solved examples.