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KEYWORD: Natural gas pipeline; Pressure and cold energy; Energy and exergy analysis ABSTRACT: Natural gas transported in pipeline is at high pressures. But the pressure of natural gas is needed to be dropped to consumption valves before entering the user side. Available energy from the pressure reduction process of pipeline natural gas has been analyzed in this paper. A power generation and ice making system based on pressure and cold energy of the pipeline natural gas has been proposed to improve the operation economy of natural gas pipeline network. Finally, the energy and exergy analysis of the system is carried out. The results show that the system can significantly recycle the energy of the system.

Analysis of power generation and ice making system based on pressure and cold energy using of pipeline natural gas