CO2 Thermosiphon for Competitive Geothermal Power Generation

Atrens, AD, Gurgenci, H and Rudolph, V (2009) CO2 Thermosiphon for Competitive Geothermal Power Generation. ENERGY & FUELS, 23 1: 553-557. doi:10.1021/ef800601z


Author Atrens, AD
Gurgenci, H
Rudolph, V
Title CO2 Thermosiphon for Competitive Geothermal Power Generation
Formatted title
CO2 Thermosiphon for Competitive Geothermal Power Generation
Journal name ENERGY & FUELS   Check publisher's open access policy
ISSN 0887-0624
Publication date 2009-01
Year available 2008
Sub-type Article (original research)
DOI 10.1021/ef800601z
Volume 23
Issue 1
Start page 553
End page 557
Total pages 5
Editor Michael T, Klein
Linda Broadbelt
Ke Liu
Constance Senior
John M. Shaw
Robert Weber
Hongwei Wu
Chunming Xu
Place of publication USA - web
Publisher ACS
Language eng
Subject C1
090608 Renewable Power and Energy Systems Engineering (excl. Solar Cells)
850502 Geothermal Energy
Abstract Engineered geothermal systems represent a significant unutilized energy source, with the potential to assist in meeting growing energy demands with clean, renewable energy. Traditional geothermal systems use water as the working fluid. An alternative working fluid is carbon dioxide which offers potential benefits including favorable thermodynamic and transport properties and the potential for sequestration. An important feature is that CO2 does not dissolve mineral salts, and this will serve to reduce fouling and corrosion problems which afflict piping and surface equipment in conventional water cycles. Our modeling shows that a CO2-based power plant has net electricity production comparable to the traditional approach, but with a much simpler design, and demonstrates the comparative efficacy of CO2 as a heat extraction and working fluid. While the economic viability of a CO2-based system remains to be proven, this analysis provides a starting point for more detailed thermodynamic and economic models of engineered geothermal systems power conversion utilizing CO2.
Keyword CARBON-DIOXIDE
Q-Index Code C1
Q-Index Status Provisional Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
School of Chemical Engineering Publications
 
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Citation counts: TR Web of Science Citation Count  Cited 34 times in Thomson Reuters Web of Science Article | Citations
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Created: Thu, 03 Sep 2009, 08:36:06 EST by Mr Andrew Martlew on behalf of School of Mechanical and Mining Engineering