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Initial situation
Consumption : 60 000L of domestic hot water per day
Negative cold : R404a system – Cooling capacity = 200 000W & Heat rejection = 304 000W (at -40/+45°C)
Proposal / study
Equipment for negative cold unit : 3x Boostherm 100kW + 1x desuperheater 150kW on positive unit
Installation of 2x desuperheaters on positive refrigeration unit and an air handling unit
Installation of a 15 000L outside stainless steel tank
Forecast return on investment at time of study : 4,3years
Measurements taken
Average energy recovered per day : 2 999kWh/day
Annual energy savings : 959 760kWh/year
Total annual savings : approx. €38 390/year, i.e., equiv. to 201,55 tonnes of CO2/year