Iranian Society of Heating, Refrigerating, and Air Conditioning Engineers (IRSHRAE) Journal of Renewable and New Energy 2423-4931 4 1 2017 06 22 Optimizing output gas temperature of the pressure reducing station in Shahid Kaveh combined cycle power Optimizing output gas temperature of the pressure reducing station in Shahid Kaveh combined cycle power 9 15 50851 FA Pooria Baharnejad Department of Mechanical Engineering, Bozorgmehr University of Qaenat, Qaen, Iran Mojtaba Sheikhi Azqandi Department of Mechanical Engineering, Bozorgmehr University of Qaenat, Qaen, Iran Seyyed Ehsan Shakib Department of Mechanical Engineering, Bozorgmehr University of Qaenat, Qaen, Iran Journal Article 2017 10 09 The pressure of natural gas in letdown station is reducedin order to reach the desired pressure for using the other units. The present work is done to optimize the output temperature of pressure regulating station at “Shahid Kaveh of Qaen” combined cycle power plant. The reported optimization is based on prevention of the clathrate hydrates formation, the temperature domain, in which the energy consumption is optimized and combustion efficiency at gas consumption post is appropriate. The purposes of this optimization are fuel consumption reduction, better operation of gas heaters, operating costs decrease, less damage in mechanisms and construction period reduction.In order that, at first the gas regulator geometry is modeled then with Computationalfluiddynamics, the simulations and analysis are done.Finally,by comparing the output gas temperature with the standard temperature range of natural gas extracted from engineering handbooks, the adjustment of the heater output temperature is possible in order to prevent the formation of gas hydrates. <br />  The pressure of natural gas in letdown station is reducedin order to reach the desired pressure for using the other units. The present work is done to optimize the output temperature of pressure regulating station at “Shahid Kaveh of Qaen” combined cycle power plant. The reported optimization is based on prevention of the clathrate hydrates formation, the temperature domain, in which the energy consumption is optimized and combustion efficiency at gas consumption post is appropriate. The purposes of this optimization are fuel consumption reduction, better operation of gas heaters, operating costs decrease, less damage in mechanisms and construction period reduction.In order that, at first the gas regulator geometry is modeled then with Computationalfluiddynamics, the simulations and analysis are done.Finally,by comparing the output gas temperature with the standard temperature range of natural gas extracted from engineering handbooks, the adjustment of the heater output temperature is possible in order to prevent the formation of gas hydrates. <br />  https://www.jrenew.ir/article_50851_30157f6e87a0b908d0601f689a5d6d51.pdf