Affiliation:
1. Department of Mechanical Engineering and Materials Science, Duke University, P. O. Box 90300, Durham, NC 27708-0300
Abstract
It is shown that to maximize the power output of a power plant is equivalent to minimizing the total entropy generation rate associated with the power plant. This equivalence is illustrated by using two of the oldest and simplest models of power plants with heat transfer irreversibilities. To calculate the total entropy generation rate correctly, one must recognize that the optimization process (e.g., the variability of the heat input) requires “room to move,” i.e., an additional, usually overlooked, contribution to the total entropy generation rate.
Subject
Geochemistry and Petrology,Mechanical Engineering,Energy Engineering and Power Technology,Fuel Technology,Renewable Energy, Sustainability and the Environment
Reference21 articles.
1. Bejan, A., 1982, Entropy Generation through Heat and Fluid Flow, Wiley, New York, NY, p. 24.
2. Bejan, A., 1988, Advanced Engineering Thermodynamics, Wiley, New York, NY, Chap. 8.
3. Bejan A. , 1994, “Engineering Advances on Finite-Time Thermodynamics,” American Journal of Physics, Vol. 62, pp. 11–12.
4. Benjan, A., 1996a, Entropy Generation Minimization, CRC Press, Boca Raton, FL.
5. Benjan A. , 1996b, “Entropy Generation Minimization: The New Thermodynamics of Finite-Size Devices and Finite-Time Processes,” Journal of Applied Physics, Vol. 79, pp. 1191–1218.
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