<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Natural gas pressure has to be reduced from medium pressure of 1.724 MPa (250 psia) to lower pressure of 0.414 MPa (60 psia) at Town Border pressure reduction Station (TBS). Currently, the pressure reduction is carried out by throttling valves while considerable amount of pressure energy is wasted. One of the equipment which could be used to recover this waste energy is the reciprocating expansion engine. The purpose of this research is to simulate one-sided reciprocating expansion engine thermodynamically for TBS pressure range. The simulation is based on first law of thermodynamics, conversation of mass and ideal gas assumptions. The model could predict in-cylinder pressure and in-cylinder temperature at various crank angles. In addition, the effects of the engine geometrical characteristics, such as intake and exhaust port area and ports timing on the Indicated work per cycle output are investigated.</p></abstract>

Natural gas pressure has to be reduced from medium pressure of 1.724 MPa (250 psia) to lower pressure of 0.414 MPa (60 psia) at Town Border pressure reduction Station (TBS). Currently, the pressure reduction is carried out by throttling valves while considerable amount of pressure energy is wasted. One of the equipment which could be used to recover this waste energy is the reciprocating expansion engine. The purpose of this research is to simulate one-sided reciprocating expansion engine thermodynamically for TBS pressure range. The simulation is based on first law of thermodynamics, conversation of mass and ideal gas assumptions. The model could predict in-cylinder pressure and in-cylinder temperature at various crank angles. In addition, the effects of the engine geometrical characteristics, such as intake and exhaust port area and ports timing on the Indicated work per cycle output are investigated.

Thermodynamic analysis of medium pressure reciprocating natural gas expansion engines

Shahrood University of Technology, The Faculty of Mechanical Engineering, Shahrood, Iran

Khayyam University of Mashhad, Department of Mechanical Engineering, Mashhad, Iran

National Iranian Gas Company, Research and Development Department, Khorasan Razavi Province

Hakim Sabzevari University, Faculty Members of Mechanical Engineering, Sabzevar, Iran

Polish Journal of Chemical Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Natural gas pressure has to be reduced from medium pressure of 1.724 MPa (250 psia) to lower pressure of 0.414 MPa (60 psia) at Town Border pressure reduction...

Thermodynamic analysis of medium pressure reciprocating natural gas expansion engines

Published Online: Jun 09, 2015

Page range: 119 - 125

DOI: https://doi.org/10.1515/pjct-2015-0039

Keywords
Expansion engine, thermodynamic, first law, optimization, ideal gas model

© by Mahdi Deymi-Dashtebayaz

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Thermodynamic analysis of medium pressure reciprocating natural gas expansion engines

Published Online: Jun 09, 2015

Page range: 119 - 125

DOI: https://doi.org/10.1515/pjct-2015-0039

KeywordsExpansion engine, thermodynamic, first law, optimization, ideal gas model

© by Mahdi Deymi-Dashtebayaz

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Expansion engine, thermodynamic, first law, optimization, ideal gas model