Modelling of a heating and cooling plant coupled to a hotel using HFC or CO2 as a working fluid. Comparison of the performances. - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2007

Modelling of a heating and cooling plant coupled to a hotel using HFC or CO2 as a working fluid. Comparison of the performances.

Résumé

Since ozone depleting substances were banned, HFCs have become the most common working fluids in refrigeration devices. However, these greenhouse gases are responsible for global warming and are likely to be banned by European directives. Interest is now being turned towards natural fluids such as CO2. The Heating and Cooling Plant (HCP) is intended to produce domestic hot water (DHW) and to heat and cool residential and smaller office buildings. The HCP presents a special design of the refrigeration circuit and an innovative defrosting system. Two HCPs (CO2 and HFC) coupled to a hotel have been modelled using TRNSYS software. Simulations show that CO2 is less efficient. Nevertheless, this working fluid seems to be well suited to the operation of the HCP, because it enables to produce DHW at 55°C and because the high amount of energy recoverable by subcooling increases the efficiency of the defrosting system.
Fichier non déposé

Dates et versions

hal-00729085 , version 1 (07-09-2012)

Identifiants

  • HAL Id : hal-00729085 , version 1

Citer

Paul Byrne, Jacques Miriel, Yves Lénat. Modelling of a heating and cooling plant coupled to a hotel using HFC or CO2 as a working fluid. Comparison of the performances.. Clima 2007 Wellbeing Indoors, 2007, Helsinki, Finland. pp.1234. ⟨hal-00729085⟩
30 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More