Parallel feed water heating repowering of a 200 MW steam power plant

Gholam Reza Ahmadi, Davood Toghraie

Abstract


In this paper, feed water heating repowering of Shahid Montazeri steam power plant has been studied in three different
modes. Efficiencies of energy and exergy have been selected as objective functions. Cycle-tempo software
was used for simulations. In the first case, a low pressure heat recovery heat exchanger and a EGT-RLM600-PC
gas turbine were used. Efficiencies of energy and exergy increase to 3.8% & 3.79% respectively and cooling tower
water temperature difference increases to 0.652oC. In the second case, a high pressure heat recovery heat exchanger
and a Siemens (KWU) V64.3 gas turbine were used. Efficiencies of energy and exergy increase to 6.68%
and 6.65% respectively. In the third case, both heat recovery heat exchangers are and Westinghouse-401 gas
turbines were used. Efficiencies of energy and exergy increase to 8.93% & 9.05% respectively. This is the best
plan in terms of efficiency and cycle power promotion.

Keywords


Mohammad Montazeri Power Plant, Repowering, Parallel Feed Water Heating, Exergy efficiency, Cycle-‎Tempo

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