Economical evaluation of a low-enthalpy geothermal resource located in an arid-zone area

Walker, Sara, Agnew, Brian, Masheiti, Salah and Talbi, Mosbah (2012) Economical evaluation of a low-enthalpy geothermal resource located in an arid-zone area. Journal of Energy and Power Engineering, 6 (7). pp. 1013-1021. ISSN 1934-8983

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Abstract

In this work an economical evaluation that established the viability of a low enthalpy geothermal resource as an energy source in north Africa is presented. The factors considered included the payback period, average rate of return, net present value, and net benefit-cost ratio. The model was based on utilising the energy source to energise four models that comprised thermal equipment consisting of water/air cooled single/half effect lithium bromide water mixture absorption chillers and an R-245fa organic Rankine cycle. These modelled cycles were based on the energy demand for Waddan city a community in southern Libya which has a demand for combined cooling/electricity only or cooling/electricity with district hot water supply. The results revealed that all of the proposed simulated stand-alone models, except the water-cooled half effect chiller, are not economically viable unless they are heavily subsidized or combined with the district hot water supply at least in the winter season.

Item Type: Article
Uncontrolled Keywords: Libya, IPSEpro, organic Rankine cycle, absorption chillers
Subjects: H800 Chemical, Process and Energy Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
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Depositing User: Sara Walker
Date Deposited: 23 Dec 2013 09:55
Last Modified: 10 Aug 2015 11:16
URI: http://nrl.northumbria.ac.uk/id/eprint/14904

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