Development of a CHP/DH system for the new town of Parand: An opportunity to mitigate global warming in Middle East

Abstract As a result of the worldwide concern about global warming, projects that target reduction of greenhouse gas emissions have gained a lot of interest. The idea of this paper is to recover exhaust hot gases of an existing gas turbine power plant to meet dynamic thermal energy requirements of a residential area (the new town of Parand) situated in the suburb of Tehran, and also use the rest of the heat source potential to feed a steam turbine cycle. In close proximity to this town, there are two GT plants: Parand (954 MW e ) and Rudeshur (790 MW e ). For handling the CHP/STC/DH plant, two methods are considered along with thermal load following operation strategy: maximum power generation (MPG) and minimum fuel consumption (MFC). Then, the alternatives are compared in terms of annual PES, CO 2 abatement and NPV. For the best design from environmental viewpoint (Parand CHP-B), PES, CO 2 abatement and NPV are calculated to be 27.31%, 2.56 million tons and 1491 million dollar, respectively.

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