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Title

IMPROVEMENT OF OVERALL EFFICIENCY IN THE GAS TRANSMISSION NETWORKS: EMPLOYING ENERGY RECOVERY SYSTEMS

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 Start Page 1 | End Page 24

Abstract

 This study mainly focuses on enhancing the OVERALL EFFICIENCY of gas transmission networks. The authors developed a model with detailed characteristics of compressor and pressure reduction stations. Following this, they suggested three different systems with gas turbine including: ORGANIC RANKINE CYCLE (ORC), AIR BOTTOMING CYCLE (ABC), and ABC along with steam injection (SI-ABC). In addition, use of TURBO-EXPANDER as a good alternative to the expansion valves was also studied. Performance of proposed cycles was investigated on a real case study for NATURAL GAS TRANSMISSION NETWORK. Results showed that the highest efficiency would be obtained with ORC system where n-pentane was used as the working fluid and TURBO-EXPANDER was considered in pressure reduction stations Moreover, the efficiency improvement was estimated to be 22% averagely in comparison with the existing network where the flow was in the span of 50 up to 90 MMSCMD.

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