PREDICTION OF THE CRYOGENIC TURBOEXPANDER CHARACTERISTICS

Abstract

At developments cryogenic and air separating installations, as a rule, will orient by usage the available turboexpanders in usual operational mode. It limits capabilities of designing. The creation of the modern installations using new cycles and the scheme, is possible only in tight link with development of effective cryogenic turboexpanders. For this purpose it is necessary to dispose reliable mathematical models of turboexpanders, and also complex of the programs and algorithms for prediction their energy, account and design parameters. In this article on the basis of the critical analysis of existing techniques the description of mathematical model of processes in cryogenic turboexpanders is given. The computing algorithm which is taking into account a features of processes, stipulated by a construction of a turboexpander and program implementing designed algorithm and mathematical model is submitted. The computational characteristics of a production cryogenic turboexpander are compared to experimental data.