Please use this identifier to cite or link to this item: https://doi.org/10.1080/19443994.2012.695044
Title: Numerical simulation of solar-assisted multi-effect distillation (SMED) desalination systems
Authors: Kim, Y.-D.
Thu, K.
Myat, A.
Ng, K.C. 
Keywords: Desalination
Evacuated-tube collector
Mathematical modeling
Multi-effect distillation
Numerical simulation
Issue Date: 2013
Source: Kim, Y.-D., Thu, K., Myat, A., Ng, K.C. (2013). Numerical simulation of solar-assisted multi-effect distillation (SMED) desalination systems. Desalination and Water Treatment 51 (4-6) : 1242-1253. ScholarBank@NUS Repository. https://doi.org/10.1080/19443994.2012.695044
Abstract: We present a simulation model for the transient behavior of solar-assisted seawater desalination plant that employs the evacuated-tube collectors in conjunction with a multieffect distillation plant of nominal water production capacity of 16m3/day. This configuration has been selected due to merits in terms of environment-friendliness and energy efficiency. The solar-assisted multi-effect distillation system comprises 849 m2 of evacuated-tube collectors, 280 m3 water storage tanks, auxiliary heater, and six effects and a condenser. The present analysis employs a baseline configuration, namely; (i) the local solar insolation input (Jeddah, Saudi Arabia), (ii) a coolant flow rate through the headers of collector based on ASHRAE standards, (iii) a heating water demand, and (iv) the augmentation of water temperature by auxiliary when the supply temperature from the solar tank drops below the set point. It is observed that the annual collector efficiency and solar fraction decrease from 57.3 to 54.8% and from 49.4 to 36.7%, respectively, with an increase in the heating water temperature from 80 to 90 °C. The overall water production rate and the performance ratio increase slightly from 0.18 to 0.21 kg/s and from 4.11 to 4.13, respectively. © 2013 Desalination Publications.
Source Title: Desalination and Water Treatment
URI: http://scholarbank.nus.edu.sg/handle/10635/85505
ISSN: 19443994
DOI: 10.1080/19443994.2012.695044
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