Computation Velocity, Pressure, Temperature Profiles in Cryogenic Turboexpander

Abstract

An indigenous programme on design and development of a cryogenic turboexpander has been taken up at NIT, Rourkela. This paper presents the detailed computational procedure for determining the velocity, pressure and temperature profiles in the turbine wheel, nozzle and diffuser of the turboexpander. The procedure allows any arbitrary combination of fluid species, inlet conditions and expansion ratio, the fluid properties being properly taken care of in the relevant equations. The computational process is illustrated with an example.