Title :
A simplified sizing and mass model for axial flow turbines
Author :
Hudson, Steven L.
Author_Institution :
Sandia Nat. Lab., Albuquerque, NM, USA
Abstract :
A mass model has been developed and used to study axial flow turbines for space power systems. Hydrogen, helium-xenon, hydrogen-water-vapor, air, and potassium vapor working fluids have been investigated to date. The impact of construction material, inlet temperature, rotational speed, pressure ratio, and power level on turbine mass and volume has been analyzed. The turbine model is described, and results of parametric studies showing general design trends characteristic of any axial flow machine are reported. Axial flow turbine designs using helium-xenon mixtures and potassium vapor working fluids which are used in Brayton and Rankine space power systems, respectively, are compared
Keywords :
space vehicle power plants; turbines; Brayton engines; H2 turbines; HeXe turbines; K turbines; Rankine engines; axial flow turbines; construction material; inlet temperature; power level; pressure ratio; rotational speed; space power systems; turbine mass; turbine volume; Blades; Energy exchange; Equations; Laboratories; Power system analysis computing; Power system dynamics; Power system modeling; Thermal stresses; Thermodynamics; Turbines;
Conference_Titel :
Energy Conversion Engineering Conference, 1989. IECEC-89., Proceedings of the 24th Intersociety
Conference_Location :
Washington, DC
DOI :
10.1109/IECEC.1989.74603
