Analysis of the Working Process and Mechanical Losses in a Stirling Engine for a Solar Power Unit

[+] Author and Article Information
Kh. Kh. Makhkamov

The Physical and Technical Institute, The Uzbek Academy of Sciences, Mavlynova 2-b, Tashkent, 700084, Uzbekistan

D. B. Ingham

Department of Applied Mathematics, The University of Leeds, LEEDS, West Yorkshire, LS2 9JT UK

J. Sol. Energy Eng 121(2), 121-127 (May 01, 1999) (7 pages) doi:10.1115/1.2888149 History: Received January 01, 1998; Revised December 01, 1998; Online February 14, 2008


In this paper a second level mathematical model for the computational simulation of the working process of a 1-kW Stirling engine has been used and the results obtained are presented. The internal circuit of the engine in the calculation scheme was divided into five chambers, namely, the expansion space, heater, regenerator, cooler and the compression space, and the governing system of ordinary differential equations for the energy and mass conservation were solved in each chamber by Euler’s method. In additional, mechanical losses in the construction of the engine have been determined and the computational results show that the mechanical losses for this particular design of the Stirling engine may be up to 50% of the indicated power of the engine.

Copyright © 1999 by The American Society of Mechanical Engineers
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