Solar assisted heat pump desalination system

Hawlader, Mohammad Nurul Alam and Dey, P K and Sufian, Diab and Chang, Y C (2004) Solar assisted heat pump desalination system. Desalination, 168 (1-3). pp. 49-54. ISSN 0011-9164

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Abstract

This paper describes a novel system of solar assisted heat pump desalination. A single effect desalination unit has been designed and fabricated, and it is connected to an existing solar assisted heat pump. The system consists of a compressor, condenser, evaporator, solar evaporator-collector, desalination chamber, feed tank, vacuum pump and distillate collection unit. A vacuum pump is connected to the desalination chamber. A spray nozzle has been used to generate droplets of feed water in the desalination unit. The feed water has been preheated before being sprayed by the nozzle. The desalination unit incorporates both falling film evaporation and flash distillation concepts.A series of experiment has been conducted on the system under different operating and meteorological conditions of Singapore. The effects of feed temperature and flashing have been investigated. The performance ratio and the coefficient of performance (COP) have been evaluated. The performance ratio (PR) obtained from the experiments ranges from 0.77 to 1.15 and COP of the system was found to vary between 5.0 and 7.0.

Item Type:	Article (Journal)
Additional Information:	6548/22821
Uncontrolled Keywords:	Solar desalination; Heat pump; Performance ratio; Coefficient of performance
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ807 Renewable energy sources
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering
Depositing User:	Prof Mohammad Nurul Alam / M N A Hawlader
Date Deposited:	06 Jun 2013 20:37
Last Modified:	06 Jun 2013 20:37
URI:	http://irep.iium.edu.my/id/eprint/22821

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