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Dynamic solar-powered multi-stage direct contact membrane distillation system: Concept design, modeling and simulation

Title
Dynamic solar-powered multi-stage direct contact membrane distillation system: Concept design, modeling and simulation
Author
김우승
Keywords
Dynamic operating system; Direct contact membrane distillation; Multi-stage concept; Desalination; Solar-powered system (Busan, Korea)
Issue Date
2018-06
Publisher
ELSEVIER SCIENCE BV
Citation
DESALINATION, v. 435, Page. 278-292
Abstract
This paper presents a theoretical analysis of the monthly average daily and hourly performances of a solar powered multi-stage direct contact membrane distillation (SMDCMD) system with an energy recovery scheme and dynamic operating system. Mid-latitude meteorological data from Busan, Korea is employed, featuring large climate variation over the course of one year. The number of module stages used by the dynamic operating scheme changes dynamically based on the inlet feed temperature of the successive modules, which results in an improvement of the water production and thermal efficiency. The simulations of the SMDCMD system are carried out to investigate the spatial and temporal variations in the feed and permeate temperatures and permeate flux. The monthly average daily water production increases from 0.37 m(3)/day to 0.4 m(3)/day and thermal efficiency increases from 31% to 45% when comparing systems both without and with dynamic operation in December. The water production with respect to collector area ranged from 350 m(2) to 550 m2 and the seawater storage tank volume ranged from 16 m(3) to 28.8 m(3), and the solar fraction at various desired feed temperatures from 50 degrees C to 80 degrees C have been investigated in October and December.
URI
https://www.sciencedirect.com/science/article/pii/S001191641730098Xhttp://repository.hanyang.ac.kr/handle/20.500.11754/81151
ISSN
0011-9164
DOI
10.1016/j.desal.2017.04.008
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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