Study, optimization, and design of a laser heat engineLaser heat engine concepts, proposed for satellite applications, are analyzed to determine which engine concept best meets the requirements of high efficiency (50 percent or better), continuous operation in space using near-term technology. The analysis of laser heat engines includes the thermodynamic cycles, engine design, laser power sources, collector/concentrator optics, receiving windows, absorbers, working fluids, electricity generation, and heat rejection. Specific engine concepts, optimized according to thermal efficiency, are rated by their technological availability and scaling to higher powers. A near-term experimental demonstration of the laser heat engine concept appears feasible utilizing an Otto cycle powered by CO2 laser radiation coupled into the engine through a diamond window. Higher cycle temperatures, higher efficiencies, and scalability to larger sizes appear to be achievable from a laser heat engine design based on the Brayton cycle and powered by a CO laser.
Document ID
19790032620
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Taussig, R. T. (Mathematical Sciences Northwest, Inc. Bellevue, WA, United States)
Cassady, P. E. (Mathematical Sciences Northwest, Inc. Bellevue, WA, United States)
Zumdieck, J. F. (Mathematical Sciences Northwest, Inc. Bellevue, Wash., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Subject Category
Spacecraft Propulsion And Power
Meeting Information
Meeting: Radiation energy conversion in space; Conference