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Comparison of configurations of high-temperature heat pumps for biogas-upgrading.

Number: pap. n. 970

Author(s) : HELMINGER F., LAUERMANN M., BAUM-HAKEL A., et al.

Summary

High temperature heat pumps in industrial processes can enable an increase of their energy efficiency. The temperature swing adsorption process (TSA) enables an efficient separation of carbon dioxide. An essential part of the TSA process is a heat distribution concept, for which high temperature heat pumps are a good choice, since heat must be removed at low temperature (evaporation 35-50°C) and supplied at high temperature (condensation 110-125°C). With this aim different heat pump configurations have been numerically investigated using Dymola/Modelica™. A number of heat pump configurations, varying preselected refrigerants, circuit configurations, etc., have been simulated in order to compare the results by compressor size and an internal suction gas superheater (IHX). The results show the relative displacement volume of each heat pump configuration and give recommendations of the use of the IHX as basis for investment costs and economical solutions.

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Pages: 8

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Details

  • Original title: Comparison of configurations of high-temperature heat pumps for biogas-upgrading.
  • Record ID : 30026502
  • Languages: English
  • Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Publication date: 2019/08/24
  • DOI: http://dx.doi.org/10.18462/iir.icr.2019.0970

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