Title

Efficiency of a combined desalination and power system utilising a multi-stream heat exchanger

Document Type

Article

School

School of Engineering

Comments

Originally published as Hosseini Araghi, A., Khiadani, M., Lucas, G., (2015). Efficiency of a combined desalination and power system utilising a multi-stream heat exchanger. Paper presented at the 17th IAHR Cooling Tower and Heat Exchanger, 7-11September 2015, Gold Coast, Queensland, Australia, Proceeding of 17th IAHR, 2015 (pp.41-50). Available from https://www.dropbox.com/s/3mnxlakrran8z0e/Proceedings.pdf?dl=0

Abstract

The aim of this study is to simplify the process of Discharge Thermal Energy Combined Desalination (DTECD) with Power System by integrating the two existing heat exchangers (condensers) into a new multi-stream one. This system is a heat recovery unit, which is used to cogenerate water and power. Two shell & tube condensers operate in a closed power cycle and a desalination system for cooling an ammonia mixture (70% wt.) as a working fluid and condensing a pure vapor respectively. Here, a multi-stream plate condenser is utilized instead of the two low exergy efficiency shell & tube condensers. The results proved that the proposed technique leads to improvement in the system performance. The performance of the proposed process was analyzed by applying parametric optimization.

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