OFF-DESIGN PERFORMANCE PREDICTION WITH EXPERIMENTAL VERIFICATION FOR A RADIAL-INFLOW TURBINE

摘要

A method for predicting the off-design performance of a radial-inflow gas turbine is presented. The equations used have been programmed for a digital computer. Input to the program must include the turbine geometry and dimensions. The efficiency, pressure ratio, speed, and weight flow at a given operating point are necessary in order to evaluate the loss coefficients.nPredicted performance is given for a 4.5-inch-diameter commercial turbine. Comparison of predicted with experimentally determined performance for this turbine showed good agreement.