A model has been developed for regenerative thermal devices such as Stirling engines and refrigerators, in which, while the heat exchangers are modeled as fully isothermal, the flow in the cylinders and dead spaces is modeled as adiabatic, one-dimensional, and stratified. Pressure is assumed to be spatially uniform, so that the two remaining conservation laws refer to mass and energy. It is shown that under the proposed assumptions, the conservation laws can be integrated in closed form with respect to the space variable, leaving only time integration to be performed numerically. As a result, the numerical integration is very cost-effective, sufficiently so that the resulting program can be used to chart large portions of the parameter space relatively quickly on widely available engineering workstations.
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June 1995
Research Papers
A Stratified Flow Model for Adiabatic Losses in Regenerative Thermal Devices
L. Bauwens
L. Bauwens
Department of Mechanical Engineering, The University of Calgary, Calgary, Alberta, Canada T2N 1N4
e-mail: bauwens@acs.ucalgary.ca
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L. Bauwens
Department of Mechanical Engineering, The University of Calgary, Calgary, Alberta, Canada T2N 1N4
e-mail: bauwens@acs.ucalgary.ca
J. Energy Resour. Technol. Jun 1995, 117(2): 150-155 (6 pages)
Published Online: June 1, 1995
Article history
Received:
September 19, 1993
Revised:
January 19, 1995
Online:
January 22, 2008
Citation
Bauwens, L. (June 1, 1995). "A Stratified Flow Model for Adiabatic Losses in Regenerative Thermal Devices." ASME. J. Energy Resour. Technol. June 1995; 117(2): 150–155. https://doi.org/10.1115/1.2835331
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