skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Optimization of heat exchanger design in a thermoacoustic engine using a second law analysis

Abstract

An analysis for the time averaged entropy generation due to both flow and heat transfer losses in the heat exchangers of a thermoacoustic engine has been developed. An expression for the optimum dimensionless heat exchanger area corresponding to minimum entropy generation has been determined in terms of three other dimensionless parameters. Optimum heat exchanger areas were calculated for three thermoacoustic devices. For the prime mover components of the thermoacoustic devices investigated where the temperature differences across the regenerator stacks were high, the analysis developed indicated that the heat exchanger at the hot end of the regenerator stack should be smaller than that at the cold end.

Authors:
;  [1]
  1. Univ. of Queensland, St. Lucia (Australia). Dept. of Mechanical Engineering
Publication Date:
OSTI Identifier:
242204
Resource Type:
Journal Article
Journal Name:
International Communications in Heat and Mass Transfer
Additional Journal Information:
Journal Volume: 23; Journal Issue: 3; Other Information: PBD: May-Jun 1996
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; HEAT EXCHANGERS; DESIGN; HEAT ENGINES; ACOUSTIC HEATING; REFRIGERATING MACHINERY

Citation Formats

Ishikawa, H, and Hobson, P A. Optimization of heat exchanger design in a thermoacoustic engine using a second law analysis. United States: N. p., 1996. Web. doi:10.1016/0735-1933(96)00018-8.
Ishikawa, H, & Hobson, P A. Optimization of heat exchanger design in a thermoacoustic engine using a second law analysis. United States. https://doi.org/10.1016/0735-1933(96)00018-8
Ishikawa, H, and Hobson, P A. 1996. "Optimization of heat exchanger design in a thermoacoustic engine using a second law analysis". United States. https://doi.org/10.1016/0735-1933(96)00018-8.
@article{osti_242204,
title = {Optimization of heat exchanger design in a thermoacoustic engine using a second law analysis},
author = {Ishikawa, H and Hobson, P A},
abstractNote = {An analysis for the time averaged entropy generation due to both flow and heat transfer losses in the heat exchangers of a thermoacoustic engine has been developed. An expression for the optimum dimensionless heat exchanger area corresponding to minimum entropy generation has been determined in terms of three other dimensionless parameters. Optimum heat exchanger areas were calculated for three thermoacoustic devices. For the prime mover components of the thermoacoustic devices investigated where the temperature differences across the regenerator stacks were high, the analysis developed indicated that the heat exchanger at the hot end of the regenerator stack should be smaller than that at the cold end.},
doi = {10.1016/0735-1933(96)00018-8},
url = {https://www.osti.gov/biblio/242204}, journal = {International Communications in Heat and Mass Transfer},
number = 3,
volume = 23,
place = {United States},
year = {Wed May 01 00:00:00 EDT 1996},
month = {Wed May 01 00:00:00 EDT 1996}
}