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Modelling Heat Pumps with Variable EER and COP in EnergyPlus: A Case Study Applied to Ground Source and Heat Recovery Heat Pump Systems

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  • Antonella Priarone

    (DIME, University of Genova, Via all’Opera Pia 15a, 16145 Genova, Italy)

  • Federico Silenzi

    (DIME, University of Genova, Via all’Opera Pia 15a, 16145 Genova, Italy)

  • Marco Fossa

    (DIME, University of Genova, Via all’Opera Pia 15a, 16145 Genova, Italy)

Abstract

Dynamic energy modelling of buildings is a key factor for developing new strategies for energy management and consumption reduction. For this reason, the EnergyPlus software was used to model a near-zero energy building (Smart Energy Buildings, SEB) located in Savona, Italy. In particular, the focus of the present paper concerns the modeling of the ground source water-to-water heat pump (WHP) and the air-to-air heat pump (AHP) installed in the SEB building. To model the WHP in EnergyPlus, the Curve Fit Method was selected. Starting from manufacturer data, this model allows to estimate the COP of the HP for different temperature working conditions. The procedure was extended to the AHP. This unit is a part of the air-handling unit and it is working as a heat recovery system. The results obtained show that the HP performance in EnergyPlus can closely follow manufacturer data if proper input recasting is performed for EnergyPlus simulations. The present paper clarifies a long series of missed information on EnergyPlus reference sources and allows the huge amount of EnergyPlus users to properly and consciously run simulations, especially when unconventional heat pumps are present.

Suggested Citation

  • Antonella Priarone & Federico Silenzi & Marco Fossa, 2020. "Modelling Heat Pumps with Variable EER and COP in EnergyPlus: A Case Study Applied to Ground Source and Heat Recovery Heat Pump Systems," Energies, MDPI, vol. 13(4), pages 1-22, February.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:4:p:794-:d:319399
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    References listed on IDEAS

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    11. Belen Moreno Santamaria & Fernando del Ama Gonzalo & Danielle Pinette & Roberto-Alonso Gonzalez-Lezcano & Benito Lauret Aguirregabiria & Juan A. Hernandez Ramos, 2020. "Application and Validation of a Dynamic Energy Simulation Tool: A Case Study with Water Flow Glazing Envelope," Energies, MDPI, vol. 13(12), pages 1-20, June.
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