Accession Number : AD0284116

Title :   DETERMINATION OF TRANSITION PROCESSES IN CONTINUOUS-ACTION HEAT EXCHANGERS,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : DEVYATOV,B.N. ; KORNEV,YU.N.

Report Date : 26 JUL 1962

Pagination or Media Count : 1

Abstract : Differential equations are given in describing nonsteady-state processes in tube-in-tube type heat-exchanging devices and approximate solutions involving expansion into convergent series are examined. These solutions in the four exponential functions are also examined. The errors permitted in the approximate solutions are fully justified by the simplicity of the expressions obtained. It is easier, as a rule, to analyze the dependence of the processes on the parameters of the apparatus and the regime of its operation by using approximate solutions. The errors of the approximate representation of transition processes may be evaluated by a comparison with expeimental data. (Autho )

Descriptors :   *DIFFERENTIAL EQUATIONS, *HEAT EXCHANGERS, *HEAT TRANSFER, BESSEL FUNCTIONS, DIRECT CURRENT, ERRORS, EXPERIMENTAL DATA, INTEGRAL TRANSFORMS, SERIES(MATHEMATICS)

Distribution Statement : APPROVED FOR PUBLIC RELEASE