Industrial waste heat recovery technologies: An economic analysis of heat transformation technologies
MetadataShow full item record
In this paper, the potential of industrial waste heat for heating and cooling applications is investigated. Therefore, heat transformation technologies are presented and their technical and economic potential are discussed. First, different industrial processes and their operating temperatures are presented as possible waste heat sources as well as low temperature processes, which can be supplied with waste heat. Then, a general economic analysis is performed for three different cases of waste heat use: an absorption chiller producing cold and heat production with a compression and an absorption heat pump. The maximum acceptable investment cost for each technology is estimated and compared with the current investment cost depending on the operating hours of the system. For this, three different consumer types, Enthusiast, Real Estate and Industry, are defined to represent different expectations in interest rate, payback period and the resulting annuity factor. Instead of judging if a technology is profitable or not, it is calculated how much the system is allowed to cost in order to be competitive for certain operating hours. Combined with present day cost of the technology, this serves as a rough judgment of the market deployment process. Finally, a sensitivity analysis of the initial assumptions for the economic analysis is performed, revealing a strong influence of the annuity factor. For the present day technology cost, absorption chillers were found to be profitable for two of the three consumer types when operated for at least 2500 h per year. Electric heat pumps are profitable for all consumer types when exceeding 4000 operating hours per year while absorption heat pumps start at 3000 h of operation per year to be profitable for all consumer types.
Is part ofApplied Energy, 2015, vol. 151, p. 157-167
European research projects
Showing items related by title, author, creator and subject.
Techno-economic analysis of a heat pump cycle including a three-media refrigerant/phase change material/water heat exchanger in the hot superheated section for effi cient domestic hot water generation Emhofer, Johann; Marx, Klemens; Barz, Tilman; Hochwallner, Felix; Cabeza, Luisa F.; Zsembinszki, Gabriel; Strehlow, Andreas; Nitsch, Birgo; Wiesflecker, Michael; Pink, Werner (MDPI, 2020)Integration of a three-media refrigerant/phase change material (PCM)/water heat exchanger (RPW-HEX) in the hot superheated section of a heat pump (HP) system is a promising approach to save energy for domestic hot water ...
Estimating the industrial waste heat recovery potential based on CO2 emissions in the European non-metallic mineral industry Miró, Laia; McKenna, Russell; Jäger, Tobias; Cabeza, Luisa F. (Springer Verlag, 2018)Industrial waste heat (IWH) is a key strategy to improve energy efficiency and reduce CO2 emissions in the industry. But its potential for different countries remains unclear due to a non-existent or inconsistent data ...
Miró, Laia; Gasia, Jaume; Cabeza, Luisa F. (Elsevier, 2016)Industrial activities have a huge potential for waste heat recovery. In spite of its high potential, industrial waste heat (IWH) is currently underutilized. This may be due, on one hand, to the technical and economic ...