Publication detail

Analyzing the Energy Consumption, GHG Emission, and Cost of Seawater Desalination in China

Jia, X.X. Klemeš, J.J. Varbanov, P.S. Wan Alwi, S.R.

Original Title

Analyzing the Energy Consumption, GHG Emission, and Cost of Seawater Desalination in China

Type

journal article in Web of Science

Language

English

Original Abstract

Seawater desalination is considered a technique with high water supply potential and has become an emerging alternative for freshwater supply in China. The increase of the capacity also increases energy consumption and greenhouse gases (GHG) emissions, which has not been well investigated in studies. This study has analyzed the current development of seawater desalination in China, including the capacity, distribution, processes, as well as the desalted water use. Energy consumption and GHG emissions of overall desalination in China, as well as for the provinces, are calculated covering the period of 2006–2016. The unit product cost of seawater desalination plants specifying processes is also estimated. The results showed that 1) The installed capacity maintained increased from 2006 to 2016, and reverse osmosis is the major process used for seawater desalination in China. 2) The energy consumption increased from 81 MWh/y to 1,561 MWh/y during the 11 years. The overall GHG emission increase from 85 Mt CO 2eq /y to 1,628 Mt CO 2eq /y. Tianjin had the largest GHG emissions, following are Hebei and Shandong, with emissions of 4.1 Mt CO 2eq /y, 2.2 Mt CO 2eq /y. and 1.0 Mt CO 2eq /y. 3) The unit product cost of seawater desalination is higher than other water supply alternatives, and it differentiates the desalination processes. The average unit product cost of the reverse osmosis process is 0.96 USD and 2.5 USD for the multiple-effect distillation process. The potential for future works should specify different energy forms, e.g. heat and power. Alternatives of process integration should be investigated—e.g. efficiency of using the energy, heat integration, and renewables in water desalination, as well as the utilization of total site heat integration.

Keywords

Energy demand; Environmental impacts; Specific energy consumption; Water desalination; Water shortage; Water supply; Cost accounting; Desalination; Distillation; Energy utilization; Environmental impact; Reverse osmosis; Seawater; Water filtration; Energy demands; Greenhouse gases (GHG); Multiple effect distillation; Seawater desalination; Seawater desalination plants; Specific energy consumption; Water desalination;

Authors

Jia, X.X.; Klemeš, J.J.; Varbanov, P.S.; Wan Alwi, S.R.

Released

31. 1. 2019

Publisher

MDPI AG

ISBN

1996-1073

Periodical

ENERGIES

Year of study

3

Number

12

State

Swiss Confederation

Pages from

463

Pages to

464

Pages count

2

URL

https://www.mdpi.com/1996-1073/12/3/463

BibTex

@article{BUT159425,
  author="Jia, X.X. and Klemeš, J.J. and Varbanov, P.S. and Wan Alwi, S.R.",
  title="Analyzing the Energy Consumption, GHG Emission, and Cost of Seawater Desalination in China",
  journal="ENERGIES",
  year="2019",
  volume="3",
  number="12",
  pages="463--464",
  doi="10.3390/en12030463",
  issn="1996-1073",
  url="https://www.mdpi.com/1996-1073/12/3/463"
}