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Field data of CO2 integrated refrigeration, heating and cooling systems for supermarkets

Field data of CO2 integrated refrigeration, heating and cooling systems for supermarkets

Category
Academic chapter/article/Conference paper
Abstract
The EU H2020 project MultiPACK has given the opportunity of installing three state-of-the art CO2 systems
for supermarkets in South Europe, able to supply all the required thermal energy needs of the site, i.e.
refrigeration, heating, cooling and hot water production. The MultiPACK units include parallel compression,
ejectors for expansion work recovery and liquid recirculation and evaporator overfeeding, together with full
monitoring of operation and performances. After more than one year of operations, field data of two
supermarkets installed in Italy are presented and operating conditions and performance are illustrated; KPI
indicators are evaluated to prepare for comparison with traditional solutions. A maximum monthly average
COP of 4.2 was measured in central Italy in March 2020. The average specific energy consumption, due to
Refrigeration, AC and heating, referred to the shopping area, was found to be 111 and 146 kWh m-2year-1 for
the two sites.
Keywords: Commercial Refrigeration, Carbon Dioxide, Heat Recovery, DHW, Energy Efficiency.
Client
  • EC/H2020 / 723137
Language
English
Author(s)
Affiliation
  • Italy
  • Norwegian University of Science and Technology
  • SINTEF Energy Research / Termisk energi
Year
Publisher
International Institute of Refrigeration
Book
Proceedings of the 14th IIR-Gustav Lorentzen Conference on Natural Refrigerants
Issue
14
ISBN
978-2-36215-040-1
Page(s)
363 - 368