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Experimental and numerical investigation of a transcritical CO2 air/water reversible heat pump: analysis of domestic hot water production

Experimental and numerical investigation of a transcritical CO2 air/water reversible heat pump: analysis of domestic hot water production

Category
Academic chapter/article/Conference paper
Abstract
As a natural refrigerant, carbon dioxide is safe, economic and environmentally sustainable and can be
successfully utilized in heat pump and refrigeration systems operating according to transcritical cycles. This
paper describes the development of a CO2 air/water reversible heat pump, specifically investigating the
domestic hot water (DHW) production operating mode. A dynamic model of the heat pump is developed with
the software Simcenter Amesim. After validation against experimental data, the numerical model is utilized to
predict the performance of the heat pump to a varying hot water demand, evaporator air inlet conditions and
high pressure value, leading to the discussion of the optimal control strategy.
Keywords: Transcritical heat pump, Carbon Dioxide, Numerical model, COP, DHW, Energy Efficiency.
Client
  • EC/H2020 / 723137
Language
English
Author(s)
  • Giacomo Tosato
  • Paolo Artuso
  • Silvia Minetto
  • Antonio Rossetti
  • Yosr Allouche
  • Krzysztof Banasiak
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)
115 - 120