Strategies of Merging Compressors for Capital Cost Reduction in Hydrogen Networks Synthesis

Strategies of Merging Compressors for Capital Cost Reduction in Hydrogen Networks Synthesis For integration of hydrogen networks by mathematical programing, the utilization of a dedicated compressor in each match of hydrogen source and hydrogen sink can avoid the non-linear terms arising from the mixing inlet streams and the unknown pressures of compressors, which greatly reduced the complexity in solving the hydrogen network optimization models. However, it may lead to large number of compressors and higher capital costs. To solve this problem, a method of compressor merging is proposed in this work, in which two strategies of merging compressors are proposed, namely, the hydrogen sources oriented compressors merging strategy (HSCM) and the hydrogen sinks oriented compressors merging strategy (HKCM). The proposed strategies consider the upper capacity bound of a compressor and the capital cost of the compressors, and do not change the optimal matches of hydrogen sources and hydrogen sinks. A case study is employed to exemplify the implementation of the proposed method. The results show that the proposed strategies can reduce the number and the capital cost of compressors effectively. And the operating flexibility of the hydrogen network is also improved. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Process Integration and Optimization for Sustainability Springer Journals

Strategies of Merging Compressors for Capital Cost Reduction in Hydrogen Networks Synthesis

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Publisher
Springer Singapore
Copyright
Copyright © 2017 by Springer Nature Singapore Pte Ltd.
Subject
Engineering; Industrial and Production Engineering; Sustainable Development; Industrial Chemistry/Chemical Engineering; Energy Policy, Economics and Management; Waste Management/Waste Technology
ISSN
2509-4238
eISSN
2509-4246
D.O.I.
10.1007/s41660-017-0017-y
Publisher site
See Article on Publisher Site

Abstract

For integration of hydrogen networks by mathematical programing, the utilization of a dedicated compressor in each match of hydrogen source and hydrogen sink can avoid the non-linear terms arising from the mixing inlet streams and the unknown pressures of compressors, which greatly reduced the complexity in solving the hydrogen network optimization models. However, it may lead to large number of compressors and higher capital costs. To solve this problem, a method of compressor merging is proposed in this work, in which two strategies of merging compressors are proposed, namely, the hydrogen sources oriented compressors merging strategy (HSCM) and the hydrogen sinks oriented compressors merging strategy (HKCM). The proposed strategies consider the upper capacity bound of a compressor and the capital cost of the compressors, and do not change the optimal matches of hydrogen sources and hydrogen sinks. A case study is employed to exemplify the implementation of the proposed method. The results show that the proposed strategies can reduce the number and the capital cost of compressors effectively. And the operating flexibility of the hydrogen network is also improved.

Journal

Process Integration and Optimization for SustainabilitySpringer Journals

Published: Oct 3, 2017

References

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