Analysis of possibilities to utilize excess heat of supermarkets as heat source for district heating

Research output: Contribution to journalConference article – Annual report year: 2018Researchpeer-review

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The paper analyses the possibilities to recover excess heat from CO2 supermarket refrigeration plants for supply to district heating networks. It was analyzed to operate the refrigeration system at an increased gascooler pressure to directly supply heat and to install a cascade heat pump to recover the heat from lower temperatures. Increasing the gascooler pressure appeared promising during summer, while the cascade heat pump showed higher COPs during colder periods. The investment for the cascade heat pump could be compensated within 4 years at district heating prices above 37 €/MWh.
Original languageEnglish
JournalEnergy Procedia
Pages (from-to)276-285
Publication statusPublished - 2018
Event16th International Symposium on District Heating and Cooling (DHC2018) - HafenCity University, Hamburg, Netherlands
Duration: 9 Sep 201812 Sep 2018


Conference16th International Symposium on District Heating and Cooling (DHC2018)
LocationHafenCity University
CitationsWeb of Science® Times Cited: No match on DOI

    Research areas

  • CO2, District Heating, Excess Heat Recovery, Supermarket Refrigeration, Sector Coupling

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