Abstract
Heat accumulation in cogenerating plants allows increased electricity production during highest demand period. It also causes change of the overall electricity production. Changes in cogeneration coefficient follow the same trend. This paper examines the effect on the average cogeneration factor caused by adding the heat accumulator to the existing CHP. Variation of this coefficient influences the plant economics, since electrical energy is most expensive during the peak hours. In the model presented the operating conditions vary due to variations in the surroundings temperature and due to cyclical operation of the heat accumulator. Assumptions made, the mathematical model, and numerical method used are also presented.
Volume Subject Area:
Thermodynamics and Design, Analysis, and Improvement of Energy Systems
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Copyright © 2001 by The American Society of Mechanical Engineers
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