Life cycle assessment of a large-scale centrifugal compressor: A case study in China

Shitong Peng, Tao Li, Mengmeng Dong, Junli Shi, Hongchao Zhang

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

A comprehensive assessment of the environmental performance of products in heavy industries is indispensable in unraveling the environmental pollution and resource shortage in the manufacturing industry of China. To quantify the environmental emissions and resource consumption in the holistic life cycle and identify the hotspots, this study applies the life cycle assessment to an 18.4 MW class domestic large-scale centrifugal compressor and compares the environmental impacts of the overall milled impeller and the welded impeller. Six environmental indicators—, namely, primary energy demand (PED), global warming potential (GWP), acidification potential (AP), eutrophication potential (EP), ozone layer depletion potential (ODP), and photochemical ozone creation potential (POCP) are considered in this case study. Usage, raw material production, and manufacture are the top three contributors to the entire emissions and resource utilization. The environmental impacts comparison of impellers reveals that welded impeller is more environmentally favorable in terms of PED, GWP, AP, EP and ODP. Results of this study can provide a scientific basis for compressor manufacturers to minimize the environmental burdens from the life cycle perspective.

Original languageEnglish
Pages (from-to)810-820
Number of pages11
JournalJournal of Cleaner Production
Volume139
DOIs
StatePublished - Dec 15 2016

Keywords

  • Environmental performance
  • Impeller
  • Large-scale centrifugal compressor
  • Life cycle assessment

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