Low grade heat driven multi-effect distillation technology

Wang, Xiaolin, Christ, Alexander, Regenauer-Lieb, Klaus, Hooman, Kamel and Chua, Hui Tong (2011) Low grade heat driven multi-effect distillation technology. International Journal of Heat and Mass Transfer, 54 25-26: 5497-5503. doi:10.1016/j.ijheatmasstransfer.2011.07.041


Author Wang, Xiaolin
Christ, Alexander
Regenauer-Lieb, Klaus
Hooman, Kamel
Chua, Hui Tong
Title Low grade heat driven multi-effect distillation technology
Journal name International Journal of Heat and Mass Transfer   Check publisher's open access policy
ISSN 0017-9310
Publication date 2011-12
Sub-type Article (original research)
DOI 10.1016/j.ijheatmasstransfer.2011.07.041
Volume 54
Issue 25-26
Start page 5497
End page 5503
Total pages 7
Place of publication Ithaca, NY, United States
Publisher Ecological Society of America
Collection year 2012
Language eng
Abstract Low grade heat driven multi-effect distillation (MED) desalination has received tremendous attention recently. The primary reason is that many countries, such as Australia, are water short and conventional desalination technology is energy intensive. If the required energy hails from fossil fuel source, then the freshwater production will contribute to carbon dioxide emission and consequently global warming. Low grade heat sources such as geothermal energy and waste heat from process plants generate minimal carbon dioxide. This source of energy is generally abundant at a typical temperature around 65–90 °C in many localities, and matches perfectly with the MED technology which is driven with a maximum temperature of about 90 °C. In this paper, we propose a MED design to better harness the low grade thermal energy. By means of a calibrated simulation model, validated with experimental data of single effect freshwater generators, we demonstrate that 25–60% improvement to the freshwater yield compared with conventional MED design is possible.
Keyword Geothermal energy
Low grade thermal energy
Multi-effect desalination
Freshwater yield
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2012 Collection
 
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