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wrharper
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I am having a hard time understanding the term "heat rejection". I always envision that the heat is radiating and do not understand the term. Why not "heat ejection"?
russ_watters said:Grammatically, the word "reject" is probably preferrable because of the implication that something rejected is useless (definition #4). However, while basic thermo, heat of rejection is really useless, when you get into more complex applications, even heat of rejection can be reused.
I'm not sure what you mean by spontaneous. All cycles require an input of work or heat, otherwies there would be no need for them (that's why making cold water in the winter is called "free cooling" - you use only a cooling tower, not a chiller). The point, though, is that if you are using a heat engine to generate mechanical work, you utilize as much of the heat energy as you can and whatever is left gets ejected/rejected. For that application, I don't know that either term is really better.cesiumfrog said:Surely heat ejection would imply that the heat is (spontaneously) ejected out from within the material (presumably cooling it down). It sounds like something you might design an engine to do.
Heat rejection is the process by which excess heat is removed from a system or object and transferred to the surrounding environment.
Heat rejection is important in scientific research because it allows for the control and regulation of temperature in experiments. This is crucial for accurate and reliable results.
Heat rejection can be achieved through various methods, including conduction, convection, and radiation. These processes involve the transfer of heat from a warmer object to a cooler object.
Heat rejection has many practical applications, such as in air conditioning and refrigeration systems, industrial processes, and thermal power plants. It is also essential in maintaining the body temperature of living organisms.
Heat rejection plays a critical role in energy efficiency by helping to reduce energy consumption and waste. By effectively removing excess heat, systems can operate more efficiently and use less energy to maintain desired temperatures.