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2. Comparative study of various types of compression
The compression or expansion of a gas can take place without heat exchange or, on the contrary, with cooling or reheating, which corresponds to two theoretical extreme cases: reversible, i.e. isentropic, adiabatic compression or expansion, and reversible isothermal compression or expansion. Between the two, there is an infinite number of possibilities for reversible transformations: polytropic compression or expansion.
2.1 Technical work involved in the various types of reversible compression and expansion systems
In the following study, we will always neglect variations in kinetic and potential energy. This is because :
firstly, as the density of a gas is very low, its potential energy variation is always negligible...
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Comparative study of various types of compression
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