Efficiency enhancement of heat pumps

 

Bitumen

ZEFFLE IR

100%

140%

25°C

35°C

EER*

*Indoor temperature 23°C; DAIKIN TYP RXYQ5..12P

Heat pump

    In cooling mode, heat pumps are directing heat from the building to the environment, such as outdoor air. The heat output must be at a higher temperature level in comparison to the outdoor air temperature.

    The higher the outdoor air temperature, the more energy effort is required to transport the heat. Consequently, on a hot day operating costs for cooling are higher.

    A heat pump installed on a roof with bitumen surface has a much higher operating temperature, as the same heat pump installed on a roof surface with  ZEFFLE IR - coating.

Even if this difference in temperature is only 10°C, there is an enormous increase in efficiency of approximately 40%*.

    On a clear day, roof surfaces are exposed to direct sun radiation. A heat pocket is formed above the roof surface with air temperatures significantly above the  surrounding environment.

    For safety, practical and optical reasons, outdoor heat pump units are placed, in the majority of cases, on the roof surface.

Energy-

efficiency

500 m

  Consequence = 40%

Outdoor

temperature

Heat pump

temperature

Tel.: +49 201 958 7043  -  info@proflexum.com  -  www.proflexum.com  -  TecneXum GmbH, Essen, Germany