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But the QUANTUM Air with heat recovery has even more advantages: in addition to the carbon reduction in pure chiller mode, it is possible to achieve further carbon savings in combined mode. To give an example: with heat recovery activated, the building can be heated using waste heat, which produces far less CO2 than heating the building with district heat based on fossil fuels. Carbon emissions from natural gas are reduced by about 247 g/kWh, and carbon emissions from heating oil are reduced by approx. 318 g/kWh*. Furthermore, heat recovery allows the user to recover or save significant amounts of energy. This is illustrated by the following example calculation: A QUANTUM Air in version A0570-HR and with a refrigeration capacity of 500 kW requires 122.1 kW of electrical power to operate a chilled water set. This generates 622.1 kW of heat for recovery (EER 4.1/COP 5.1). The electricity costs for continuous operation and 100 per cent load are thus €189,318.00**. If you convert the deployed energy of 622.1 kW heat to a fossil fuel, this results in huge savings of €386,921.00 per year for natural gas***. The annual savings for heating oil are €550,409.00, while the savings for electricity reach €964,578.00 per year*** – a true added value for the user. In particular, integrated heat recovery for the QUANTUM Air pays off for all industries that are especially energy-intensive and/or have high demand for heat energy – from producing companies and data centres to hospitals and hotels.
*Assumption: average ambient temperature ≤15 degrees Celsius; emissions generated during combustion; does not include any emissions generated during manufacture and transport
**Assumption: Electricity costs = 17.7 ct/kWh; continuous operation = 8760 h/a
***Assumption: Cost of natural gas = 7.1 ct/kWh; cost of heating oil = 10.1 ct/kWh; electricity cost = 17.7 ct/kWh