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      Heat pump bridge analysis using the modified energy transfer diagram

      Schlosser, Florian; Wiebe, Heinrich; Walmsley, Timothy Gordon; Atkins, Martin John; Walmsley, Michael R.W.; Hesselbach, Jens
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      energies-14-00137.pdf
      7.528Mb
      DOI
       10.3390/en14010137
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      Schlosser, F., Wiebe, H., Walmsley, T. G., Atkins, M. J., Walmsley, M. R. W., & Hesselbach, J. (2021). Heat pump bridge analysis using the modified energy transfer diagram. Energies, 14(1). https://doi.org/10.3390/en14010137
      Permanent Research Commons link: https://hdl.handle.net/10289/14092
      Abstract
      Heat pumps are the key technology to decarbonise thermal processes by upgrading industrial surplus heat using renewable electricity. Existing insight-based integration methods refer to the idealised Grand Composite Curve requiring the full exploitation of heat recovery potential but leave the question of how to deal with technical or economic limitations unanswered. In this work, a novel Heat Pump Bridge Analysis (HPBA) is introduced for practically targeting technical and economic heat pump potential by applying Coefficient of Performance curves into the Modified Energy Transfer Diagram (METD). Removing cross-Pinch violations and operating heat exchangers at minimum approach temperatures by combined application of Bridge Analysis increases the heat recovery rate and reduce the temperature lift to be pumped at the same time. The insight-based METD allows the individual matching of heat surpluses and deficits of individual streams with the capabilities and performance of different market-available heat pump concepts. For an illustrative example, the presented modifications based on HPBA increase the economically viable share of the technical heat pump potential from 61% to 79%.
      Date
      2021
      Type
      Journal Article
      Publisher
      MDPI
      Rights
      This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
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      • Science and Engineering Papers [3124]
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