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Model of a reversible heat pump for part load energy based optimization design.

Author(s) : KINAB E., FAU A., MARCHIO D., et al.

Summary

With the increase of air-conditioning needs in commercial sectors, reversible heat pumps represent a smart solution for energy consumption. Design and sizing of reversible air conditioning / heating systems are often based on the full load performance, in order to respect thermal comfort at extreme conditions. However, the HVAC industry is switching to designs based on improved seasonal performance at part load. In this context, this article represents a modelling of a 60 kW reversible heat pump. Detailed models of each component of the system have been developed: a plate heat exchanger (R-410A/water), finned tube heat exchanger (R-410A /air), two parallel scroll compressors, and an expansion valve. The model simulates the whole cycle after simulating each component separately. Results obtained are validated through tests done on a reference bench machine. Then simulations covering all the climatic conditions and regions of France for a whole year are achieved, helping to model a design of a new reversible heat pump energetically optimized at part load. This paper describes the main elements of the model, which has an objective to reduce the annual energy consumption of the reference commercial reversible heat pump by 50%.

Details

  • Original title: Model of a reversible heat pump for part load energy based optimization design.
  • Record ID : 2008-2733
  • Languages: English
  • Source: Clima 2007. WellBeing Indoors. Proceedings of the 9th REHVA World Congress [CD-ROM + Abstract book].
  • Publication date: 2007/06/10

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