Replacing the existing thermo-frigo-pump (with pistons compressors) by a new thermo-frigo-pump with variable-speed screw resulted in a 50% saving of energy use! - Archive ouverte HAL Accéder directement au contenu
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Replacing the existing thermo-frigo-pump (with pistons compressors) by a new thermo-frigo-pump with variable-speed screw resulted in a 50% saving of energy use!

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José Naveteur
  • Fonction : Auteur

Résumé

Since 1998, EDF R & D provides energy monitoring of an office building (S = 16633m2) in Lyon and is heating and cooling by a thermo frigo pumps on groundwater. In 2014, it was decided to renovate the production of hot and cold and replace:-The Existing thermo frigo pumps (with piston compressors) by new machines with variable speed compressors.-All the water pumps with new variable speed pumps The measures realized average 2015-2017(variable speed compressors), compare to average 1999-2013 (pistons compressors), have shown that-The building consumption was reduced by 37%-The consumption of water pumps 47%-The consumption of thermo frigo pumps lowered by more than 50% and the COP heating + cooling (*) factor improved by 70%!.-The CO2 emissions are also reduced by 50% compared to older the heat pumps. Compared to a gas boiler and chiller solution, the heat pumps with the new machines reduces the CO2 emissions of 83%.-All of these improvements led to a reduction in CO2 emissions of 37% (of the building). This is the only site in France that has measures (before and after replacement) and certainly the only site in Europe.
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Dates et versions

hal-02863714 , version 1 (24-06-2021)

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  • HAL Id : hal-02863714 , version 1

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José Naveteur. Replacing the existing thermo-frigo-pump (with pistons compressors) by a new thermo-frigo-pump with variable-speed screw resulted in a 50% saving of energy use!. CLIMA 2019, May 2019, BUDAPEST, France. ⟨hal-02863714⟩

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