Performance analysis of a low pressure discharge thermal energy combined desalination unit

Document Type

Journal Article

Publisher

Elsevier

Faculty

Faculty of Health, Engineering and Science

School

School of Engineering

RAS ID

19465

Comments

Araghi, A. H., Khiadani, M., Lucas, G., & Hooman, K. (2015). Performance analysis of a low pressure discharge thermal energy combined desalination unit. Applied Thermal Engineering, 76, 116-122. Available here

Abstract

This study proposes a novel steam recovery cogeneration system, which is based on the low temperature thermal desalination (LTTD) system and named Low Pressure-Discharge Thermal Energy Combined Desalination (LP-DTECD). This technology includes open water and closed power cycles. Utilizing discharged thermal energy from a waste steam in an ammonia plant to cogenerate water and power is one significant of this system. Also, using an eductor instead of a steam jet ejector or a rotary vacuum pump to save valuable steam and make a convenient operation is another merit of the proposed technology. The mixture of NH3–H2O is utilised as working fluid for its closed Rankin cycle. A 28% improvement in the exergy flow was noted as in comparison with the energy waste of the base case. Utilising the LP-DTECD system is economical and demonstrates an improved CO2 emission reduction by 7%.

DOI

10.1016/j.applthermaleng.2014.10.092

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