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Analysis of seawater desalination energy consumption based on changes in raw water characteristics and operating condition

원수 특성 변화 및 공정운영 조건에 따른 해수담수화 에너지 소비량 분석

  • Yun, Seung-Hyeon (Water and Environmental Science Department, Korea Interfacial Science and Engineering Institute) ;
  • Woo, Dal-Sik (Water and Environmental Science Department, Korea Interfacial Science and Engineering Institute)
  • 윤승현 (재단법인 한국계면공학연구소, 물환경연구팀) ;
  • 우달식 (재단법인 한국계면공학연구소, 물환경연구팀)
  • Received : 2018.12.10
  • Accepted : 2019.08.07
  • Published : 2019.08.15

Abstract

Desalination plants are generally studied with higher operating costs compared to water supply facilities. This study was conducted to reduce the cost of water production and to preserve existing water resources. Therefore, the purpose of this study was to utilize the control valves to increase maximum efficiency, thereby reducing the power of the pumps and operating costs. Specific energy consumption was shown to reduce the process operating power by up to 1.7 times from 6.17 to $3.55kWh/m^3$ based on seawater reverse osmosis 60 bar. In addition, the water intake process was divided into pre, inter, and post-according to the use method of blasting, and the water treatment process was divided into pre, inter, and post blending. In order to reduce power consumption, the blending process was combined to operate the facility, which resulted in the reduction of power consumption in the order post > pre-inter> inter blending.

Keywords

References

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Cited by

  1. Gas hydrates in sustainable chemistry vol.49, pp.15, 2019, https://doi.org/10.1039/c8cs00989a