Performance assessment of a natural gas expansion plant integrated with a vertical ground-coupled heat pump

Reza Ghezelbash, Mahmood Farzaneh-Gord, Hamidreza Behi, Meisam Sadi and Heshmatollah Shams Khorramabady

Energy, 2015, vol. 93, issue P2, 2503-2517

Abstract: In the present paper, a vertical ground-coupled heat pump system is proposed for energy saving in a natural gas expansion plant. Such plant is a modern type of conventional natural gas pressure drop station. Unlike the conventional type, which waste the natural gas pressure exergy in throttling process, the modern one uses the pressure exergy of the natural gas for producing electrical power. A remarkable feature of the proposed system is the type of energy resource used for preheating aim. In previous studies, natural gas was used for the preheating process, however; the proposed system employs geothermal energy as a renewable energy resource for providing part of heating demand. Initially, the vertical ground-coupled heat pump system preheats the natural gas stream up to medium temperatures, then, gas stream passes through station heater and reaches the desired temperature.

Keywords: Natural gas expansion plant; Turbo-expander; Ground-coupled heat pump; Energy recovery; Fuel saving (search for similar items in EconPapers)
Date: 2015
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (9)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:93:y:2015:i:p2:p:2503-2517

DOI: 10.1016/j.energy.2015.10.101

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