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

Document Type

Journal Article

Publication Title

Heat Transfer Engineering

Publisher

Taylor and Francis

School

School of Engineering

RAS ID

22030

Comments

Araghi, H., Khiadani, M., Hooman, K., & Lucas, G. (2017). Efficiency of a combined desalination and power system utilizing a two-phase flow multistream heat exchanger. Heat Transfer Engineering, 38(11-12), 1000–1007. https://doi.org/10.1080/01457632.2016.1216939

Abstract

The aim of this study is to simplify the process of discharge thermal energy combined desalination with power system by integrating the two existing heat exchangers (condensers) into a new multistream one. This system is a heat recovery unit, which is used to cogenerate water and power. Two shell-and-tube condensers operate in a closed power cycle and a desalination system for cooling an ammonia mixture as a working fluid and condensing a pure vapor, respectively. Here, a two-phase flow multistream condenser is utilized instead of the two low-eergy-efficiency shell-and-tube condensers. The results proved that the proposed technique leads to improving its exergy efficiency by 15%. The performance of the proposed condenser was analyzed by applying parametric optimization.

DOI

10.1080/01457632.2016.1216939

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