Reverse osmosis desalination driven by low temperature supercritical organic rankine cycle

Chennan Li, Saeb Besarati, Yogi Goswami, Elias Stefanakos and Huijuan Chen

Applied Energy, 2013, vol. 102, issue C, 1080 pages

Abstract: A supercritical organic rankine cycle (SORC) driven seawater reverse osmosis (RO) system (SORC-RO) is proposed. The proposed system is suitable for using both recirculating heat sources such as, solar thermal, and once-through thermal energy resources, such as, waste heat or geothermal. The SORC-RO system is analyzed using two types of low-grade heat sources with a maximum temperature of 150°C and compared with the conventional organic rankine cycle driven seawater reverse osmosis system (ORC-RO). The results show that the SORC-RO system is able to make use of different heat sources and provide relative stable performance. If the source is waste heat, the SORC-RO system could make full use of the heat source and reduce thermal pollution to the environment. A comprehensive list of working fluids candidates for the SORC-RO system using low-grade heat sources less than 150°C is proposed based on the critical pressure and temperature of the fluids.

Keywords: Supercritical organic rankine cycle (SORC); Organic rankine cycle (ORC); Reverse osmosis (RO); Low-grade heat; Desalination (search for similar items in EconPapers)
Date: 2013
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (16)

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DOI: 10.1016/j.apenergy.2012.06.028

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