دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

no exchange of heat with the surroundings.

n: a change in the volume, pressure, or temperature of a gas, occurring without a gain or loss of heat.

n: compression of air or gas that exists when no heat is transferred between the air or gas and surrounding bodies (such as the cylinders and pistons in a compressor). It is characterised by an increase in temperature during compression and a decrease in temperature during expansion.

n: the expansion of a gas, vapour, or liquid stream from a higher pressure to a lower pressure with no change in enthalpy of the stream.

n: the change in gas temperature that occurs when the gas is expanded adiabatically from a higher pressure to a lower pressure. The effect for most gases, except hydrogen and helium, is a cooling of the gas.