A Procedure for the Unsteady Characterization of Turbochargers in Reciprocating Internal Combustion Engines
In actual scenario of turbocharged automotive engines a precise knowledge of unsteady effects on turbocharger performance, such as pulsating flow influence, is needed. The paper exposes several methodologies to characterize unsteady phenomena in both compressor and turbine of the turbocharger. The experimental work goes along with compressor and turbine models that account for the unsteady effects. These models, implemented in a 1D gas-dynamic code, become a powerful tool in turbocharging systeM development. A methodology mixing calculation and experiments is presented that allows for measuring and modeling the pulsating effects in turbocharger performance at close to engines conditions and calculating the average turbine isentropic efficiency, under pulsating flow. The combination of experimental and modeling work gives a good description of all the relevant unsteady processes involved in current diesel engine turbochargers. Some selected results are presented and discussed in the paper.
reciprocating internal combustion engine turbocharging pulsating flow radial compressor radial turbine
A. Torregrosa J. Galindo J.R. Serrano A. Tiseira
CMT-Motores Termicos, Universidad Politecnica de Valencia Camino de Vera s/n, Valencia, 46010, Spain
国际会议
The Fourth International Symposium on Fluid Machinery and Fluid Engineering(第四届流体机械与流体工程国际会议)
北京
英文
72-79
2008-11-25（万方平台首次上网日期，不代表论文的发表时间）