Question

What is the diffe+rence between air-standard assumptions and the cold air-standard assumptions ?

Answer 1

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♨The actual gas power cycles are very complex, to reduce their analysis to a manageable level without significantly deviating from the actual cycles

✔; air standard assumptions are introduced.


♨Along with all the above assumptions, taking constant specific heats at room temperature, at 25 C for air, is called cold air standard assumptions.

✔Assuming constant specific heats at room temperature 25 C for air is only the difference between air standard assumptions and cold-air standard assumptions.


♨The following assumptions are commonly known as the air-standard assumptions:

✔1- The working fluid is air, which continuously circulates in aclosed loop (cycle). Air is considered as ideal gas.

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Answer 2

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In power engines, energy is provided by burning fuel within the system boundaries, i.e., internal combustion engines. The following assumptionsare commonly known as the air-standard assumptions: 1- The working fluid is air, which continuously circulates in a closed loop (cycle). Airis considered as ideal gas.

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