Please use this identifier to cite or link to this item:
|Title:||Engineered geothermal power systems for Singapore||Authors:||GRAHAME JOHN HENDERSON OLIVER
|Issue Date:||Nov-2011||Citation:||GRAHAME JOHN HENDERSON OLIVER, Palmer, A.C., Tjiawi, H., Zulkefli, F. (2011-11). Engineered geothermal power systems for Singapore. IES Journal Part A: Civil and Structural Engineering 4 (4) : 245-253. ScholarBank@NUS Repository. https://doi.org/10.1080/19373260.2011.598261||Abstract:||Singapore has a high geothermal gradient (~35°C/km) as evidenced by hot springs (70°C) and high heat flow (estimated to be about 130 mW/m 2). In this study, ground water models are presented based on AUTOUGH-2 computer modelling. The models show a freshwater lens up to 4.8 km depth under Singapore's land area, whose temperature increases with depth up to 192°C. Three geothermal prospects are identified: an engineered geothermal system (EGS) in hot, wet granite on the main island; an EGS in hot, wet volcanics or granite on Pulau Tekong and hot sedimentary aquifers (HSAs) in the Jurong Formation, both on and off-shore. Geothermal water at 150°C could be used for electricity generation, industrial process heating and desalination. A cost estimate exercise for a district cooling system (DCS) powered by 90°C geothermal water shows that there are significant economic advantages. A feasibility study is required. © 2011 Copyright Taylor and Francis Group, LLC.||Source Title:||IES Journal Part A: Civil and Structural Engineering||URI:||http://scholarbank.nus.edu.sg/handle/10635/90956||ISSN:||19373260||DOI:||10.1080/19373260.2011.598261|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on May 19, 2022
checked on May 12, 2022
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.