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Title:
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Techno-economic feasibility of high-temperature high-lift chemical heat pumps for upgrading industrial waste heat
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Author(s):
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Published by:
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Publication date:
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ECN
Energy Efficiency in Industry
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1-7-2002
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ECN report number:
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Document type:
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ECN-RX--02-031
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Article (scientific)
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Number of pages:
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21
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Published in: Applied Thermal Engineering (Elsevier), , 2002, Vol.22, p.1619-1630.
Abstract:
This paper presents the results of a techno-economic feasibility studyon two high-temperature high-lift chemical heat pumps for upgrading
industrial waste heat. The study was set up in order to select the most
promising heat pump concept for further development. First, a market
study is performed to assess the amount of waste heat and the temperature
dependence thereof. Based on the market potential, two heat pump concepts
are selected for further detailed evaluation. These are an isopropanol
heat pump and a salt/ammonia vapour heat pump. Both heat pump concepts
are technically able to upgrade the waste heat to usable temperature
levels. However, the salt/ammonia vapour heat pump has a much better
technical performance. In addition, the economic analysis shows that
this heat pump has a far better economic feasibility with a mean Internal
Rate of Return of 14 %. Therefore, this heat pump is selected for further
development.
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