Investigation of Radial Inflow Turbine : 2nd Report, A Method of Performance Estimation for Variable Geometry Radial Inflow Turbine

概要

論文の詳細を見る
It can be expected to have a good performance by using a variable geometry turbine as the vehicular gas turbine and the turbocharger of automotive diesel engine. For such usages, it is very important to estimate the performance of the turbine for a wide range of nozzle angles. In the paper, a method of performance estimation for a variable geometry radial inflow turbine is presented by treating the analysis based on so-called one-dimensional flow theory using the nozzle velocity corfficients and degrees of reaction experimentally obtained. This method is applied to the radial turbine experimented in our laboratory and NASA, and the estimated performances are compared with the experimental ones. These comparisons show that both the efficiency and the mass flow can be predicted to within 4% for a wide range of nozzle angles.
一般社団法人日本機械学会の論文