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Heat pump bridge analysis using the modified energy transfer diagram

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%.
Type
Journal Article
Type of thesis
Series
Citation
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
Date
2021
Publisher
MDPI
Degree
Supervisors
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