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Operation costs for heat recovery from supermarkets to district heating grids.
Number: pap. n. 548
Author(s) : HEERUP C.
Summary
The rebuilding of three Danish supermarket CO2 booster refrigeration plants with heat recovery heat exchangers is in the planning phase. The systems are situated in buildings heated by local district heating grids. The heating and cooling load characteristics have been analysed for one of the installations and control schemes have been suggested based on the cost profiles for power and heating, including distribution costs and taxes. The sale of excess heat to the grids has been evaluated as well as the value of using auxiliary cooling load for maximising the heat produced in heat pump operation mode. The experience from operation of plants with an earlier design has been integrated and the payback time for the investments has been estimated. The results are analysed considering the state of the heating systems in the building and the local cost structures. The estimated direct payback period varies between three to ten years.
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Details
- Original title: Operation costs for heat recovery from supermarkets to district heating grids.
- Record ID : 30026204
- 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.2019.0548
Links
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Indexing
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Themes:
CO2;
Supermarkets, display cabinets - Keywords: Building; Denmark; Heat recovery; R744; Supermarket; Case study; Cost; District heating; CO2
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