Title :
A regenerative cycle reciprocating internal combustion engine
Author :
Rallis, Costa J.
Author_Institution :
Sch. of Mech. Eng., Univ. of Witwatersrand, Johannesburg, South Africa
Abstract :
A regenerative constant-volume internal combustion engine cycle is presented and analyzed. It is shown how a reciprocating piston-in-cylinder version can be achieved in practice by using separate compression (cold) and expansion (hot) cylinders interconnected by a transfer port packed with a regenerative matrix. By injecting a volatile liquid, such as water, during compression it is possible to achieve a measure of isothermality which, together with regenerative operation and high instantaneous maximum combustion temperatures, can yield theoretically energy conversion efficiencies intermediate between those of Carnot and conventional internal combustion engine cycles. The potential advantages of this type of machine are described
Keywords :
heat engines; internal combustion engines; compression cylinders; expansion cylinders; reciprocating internal combustion engine; regenerative cycle; regenerative matrix; transfer port; Energy conversion; Engine cylinders; Heat engines; Internal combustion engines; Mechanical engineering; Performance analysis; Stirling engines; Temperature; Thermal expansion; Turbines;
Conference_Titel :
Energy Conversion Engineering Conference, 1989. IECEC-89., Proceedings of the 24th Intersociety
Conference_Location :
Washington, DC
DOI :
10.1109/IECEC.1989.74809
