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EXERGOECONOMICS ANALYSIS OF COUNTER FLOW HEAT EXCHANGERS | ||
| Iraqi journal of mechanical and material engineering | ||
| Article 1, Volume 9, Issue 2, 2009, Pages 125-141 | ||
| Authors | ||
| Dr. Hayder Shakir Abdulla; Dr. Haitham Remdhan Abed Ali; Dr. Abbas A. S. Al- Jeebori | ||
| Abstract | ||
| The irreversibility minimization method of heat exchanger optimization is extended to include a term to account the energy of the material of construction of the heat exchanger. The method permits physically realistic optimization to be conducted with the resulting optimum designs providing conceptually beneficial guideposts, which do not change with time or location. Such optima are in contrast to the optima obtained by presently advocated methods, which on one hand indicate unrealistic infinite area of the heat exchangers, and on the other hand point to optima that may change dramatically with location and time. Accompanying exergetic efficiency expressions using the same type of material exergy term show physically more realistic values than the usual expressions. | ||
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