Conceptual models for identifying the parameters of a marine diesel turbocharger turbine

Abstract

This article examines the key factors in selecting the optimal geometry turbine of turbocharger flow path of marine diesel engine with turbocharged, as well as the search for optimal control laws path geometry turbine of turbocharger flow path, which influence the technical and economic performance of the marine diesel engine. Approaches to identification the parameters characterizing turbine of turbocharger operation are outlined, both with and without turbine cooling. A system of equations describing the processes in an uncooled and cooled turbine is presented. Using similarity theory, a matrix of parameters characterizing turbine operation in terms of the type of working fluid, thermogasdynamic process, turbine design features, and its operating modes is compiled. The possibilities are presented for controlling turbine operation by varying the geometry of its flow path, with the aim of improving the efficient performance of a marine diesel engine with turbocharged on its different operating modes.