Rate of heat flow

The rate of heat flow between two systems is measured in watts (joules per second). The formula for rate of heat flow is ∆Q/∆t = -K×A×∆T/x, where ∆Q/∆t is the rate of heat flow; -K is the thermal conductivity factor; A is the surface area; ∆T is the change in temperature and x is the thickness of the material (∆T/x is called the temperature gradient and is always negative because of the heat of flow always goes from more thermal energy to less).

单词	Rate of heat flow
释义	Rate of heat flow 英语百科 Rate of heat flow The rate of heat flow between two systems is measured in watts (joules per second). The formula for rate of heat flow is ∆Q/∆t = -K×A×∆T/x, where ∆Q/∆t is the rate of heat flow; -K is the thermal conductivity factor; A is the surface area; ∆T is the change in temperature and x is the thickness of the material (∆T/x is called the temperature gradient and is always negative because of the heat of flow always goes from more thermal energy to less).
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