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

被引：14

作者：

Araghi, A. Hosseini ^{[1
]}

Khiadani, M. ^{[1
]}

Lucas, G. ^{[1
]}

Hooman, K. ^{[2
]}

机构：

[1] Edith Cowan Univ, Sch Engn, Joondalup, WA 6027, Australia

[2] Univ Queensland, Sch Mech & Min Engn, St Lucia, Qld 4072, Australia

来源：

APPLIED THERMAL ENGINEERING | 2015年 / 76卷

关键词：

Low temperature thermal desalination (LTTD); Low Pressure-Discharge Thermal Energy Combined Desalination (LP-DTECD); Cogeneration; Eductor; Rankin cycle and exergitic efficiency;

D O I：

10.1016/j.applthermaleng.2014.10.092

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

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%. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：116 / 122

页数：7

共 15 条

[11] Entropy Generation Analysis of Desalination Technologies [J].