The design and thermodynamic analysis of electricity-Compressed Natural Gas multi-compression process using natural gas pressure energy

DOI

10.2991/ifeesm-17.2018.174How to use a DOI?

Keywords

Natural gas; pressure energy; electricity-CNG; exergy analysis; multi-compression.

Abstract

A novel electricity- Compressed Natural Gas (CNG) multi-compression process using natural gas pressure energy is proposed. Compared to electricity-CNG single-compression process using natural gas pressure energy with the same CNG product, the multi-compression process produces 92 more kW power. In this paper, exergy analysis and energy utilization diagram method (EUD) are used to assess the new process and identify the key operation units with large exergy loss. The results show that exergy efficiency of the multi-compression process is 57.9%. Compared to the single-compression process, exergy efficiency of the new process is improved by 50.4%. The proposed process has been applied and implemented in a conceptual design scheme of the pressure energy utilization for a 37.5 million Nm3/year CNG-compression station in some northern Chinese city.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Hui Zhang
AU  - Xiaxi Li
AU  - Linlin Xing
AU  - Qingyu Wang
PY  - 2018/02
DA  - 2018/02
TI  - The design and thermodynamic analysis of electricity-Compressed Natural Gas multi-compression process using natural gas pressure energy
BT  - Proceedings of the 2017 3rd International Forum on Energy, Environment Science and Materials (IFEESM 2017)
PB  - Atlantis Press
SP  - 924
EP  - 932
SN  - 2352-5401
UR  - https://doi.org/10.2991/ifeesm-17.2018.174
DO  - 10.2991/ifeesm-17.2018.174
ID  - Zhang2018/02
ER  -