3 Aralık 2008 Çarşamba

Compressibility of Natural Gases

For a liquid phase, the compressibility is small and usually assumed to be constant. For a gas phase, the compressibility is neither small nor constant.

By definition, the isothermal gas compressibility is the change in volume per unit volume for a unit change in pressure or, in equation form:

where cg = isothermal gas compressibility, 1/psi