A simplified sizing and mass model for axial flow turbines
An axial flow turbine 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. This paper presents the turbine model description and results of parametric studies showing general design trends characteristic of any axial flow machine. Also, a comparison of axial flow turbine designs using helium-xenon mixtures and potassium vapor working fluids, which are used in Brayton and Rankine space power systems, respectively, is presented. 9 refs., 4 figs., 2 tabs.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5905752
- Report Number(s):
- SAND-89-1598C; CONF-890815-16; ON: DE89014131
- Country of Publication:
- United States
- Language:
- English
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42 ENGINEERING
425001 -- Engineering-- Power Cycles-- Brayton-- (1980-)
425002 -- Engineering-- Power Cycles-- Rankine-- (1980-)
BRAYTON CYCLE
COMPARATIVE EVALUATIONS
ELECTRONIC EQUIPMENT
EQUIPMENT
FLOW MODELS
FLUID MECHANICS
MACHINERY
MASS TRANSFER
MATHEMATICAL MODELS
MECHANICS
NESDPS Office of Nuclear Energy Space and Defense Power Systems
POWER SUPPLIES
RANKINE CYCLE
SPACECRAFT POWER SUPPLIES
THERMODYNAMIC CYCLES
TURBINES
TURBOMACHINERY