ENTROPY METHOD AS CRITERIA FOR ANALYSIS OF A STEAM POWER PLANT
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Abstract
In this paper a theoretical analysis of South Baghdad and Dura power plant is carried out
according to second law of thermodynamic depending on entropy (irreversibility coefficient or lost work) method instead of exergy (availability) method. In the used entropy method. The power plant is divided into main blocks ( boiler, turbine, condenser, and feed water heater and pumps ). The irreversibility losses and coefficient for each block are calculated and then the overall irreversibility and thermal efficiency of the plant are calculated. The results of this work are compared with previous results, that depending on exergy method. The comparison of results show that both methods give approximately the same results since both of them rely the 2nd law of thermodynamic. Entropy method is simple and intellectually and intuitively satisfying and giving direct relationship between components losses of power plant and its overall efficiency.
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References
Goshteen D.P. (1963), Entropy method for calculation irreversibility losse. Mocko pp.111. (in
Russion)
Goshteen D.P.,verkhevker G.P. (1986), Analysis heat cycles for nuclear power plants. Mocko
P.285 (in Russion)
Hashem H.H, Murad N.K., (1998) Pinpointing the real losses of a steam power plant by using
exergy method. (Accepted for publication) in Technical research journal.
Mathur M.L., sinha S.P. and Oda S.D., 2000, First and second law analysis of a steam power plant"
steam and fuel users Association od India, vol.33, No.2.pp.31-36.
Moran M.J. (1982), Availability analysis: a guide to efficient energy use. America p.260.
Seader J.D. (1980), Lost work: :a measure or thermodynamic efficiency. Energy.vol.5 pp.757-769.
Yunus A.C. (1994), thermodynamics an engineering approach. America p.-986.