external heat loss

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• Heat transfer — is a discipline of thermal engineering that concerns the exchange of thermal energy from one physical system to another. Heat transfer is classified into various mechanisms, such as heat conduction, convection, thermal radiation, and phase change …   Wikipedia

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• external — [[t]ɪkstɜ͟ː(r)n(ə)l[/t]] 1) ADJ: usu ADJ n External is used to indicate that something is on the outside of a surface or body, or that it exists, happens, or comes from outside. ...a much reduced heat loss through external walls. ...internal and… …   English dictionary

• Heat recovery ventilation — (also known as a heat exchanger, air exchanger or air to air exchanger) is a ventilation system that employs a counter flow heat exchanger between the inbound and outbound air flow. HRV provide fresh air and improved climate control, while also… …   Wikipedia

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• Convective heat transfer — See also: Heat transfer and convection This figure shows a calculation for thermal convection. Colors closer to red are hot areas and colors closer to blue are cold areas. In this figure, a hot, less dense lower boundary layer sends plumes… …   Wikipedia