An Empirical Model for Partially Admitted Turbine Efficiency

نویسندگانAghaei tog R.-Tousi A. M.
نشریهAircraft Engineering and Aerospace Technology
ارائه به نام دانشگاهAmirkabir University of Technology
شماره صفحات238-248
شماره سریال3
شماره مجلد87
نوع مقالهFull Paper
تاریخ انتشار2015-04-29
رتبه نشریهعلمی - پژوهشی
نوع نشریهچاپی
کشور محل چاپبریتانیا
نمایه نشریهISI

چکیده مقاله

 This study aims to presenting an empirical model for partially admitted turbine efficiency. When the design mass-flow rate is too small that a normal full-admission design would give very-small blade height, it may be advantageous to use partial admission. The losses due to partial admission with long blades may be less than the losses due to leakage and low Reynolds-number of the full-admission turbines with short blades. The turbine efficiency is highly dependent on the degree of partial admission. The empirical model of turbine efficiency is necessary for simulation and analysis of dynamic performances of the turbine system. In this work, appropriate empirical loss correlations are introduced and a proper model is proposed for turbine efficiency.

لینک ثابت مقاله

tags: Efficiency modeling, Experimental tests, Nozzle overlapping, Partial admission, Supersonic turbine