A new system version incorporating a bivalent heat pump system, consisting of a hydraulic separator and separate buffer storage tanks for domestic hot water (DHW) and heating, illustrates an application often used in practice. By using a hydraulic separator, the heat pump fills the buffer tank of the heating system and supports the heating of DHW. Auxiliary heating using a conventional heat generator is mainly responsible for heating up DHW, but also supports the heating system at low temperatures.
For this system, as for all previously available system circuits, the characteristic values can also be calculated according to the latest VDI guideline 4650. The extensive database has been updated and contains more than 3,900 products, including all heat pumps eligible for promotion according to BAFA (as of January 2020).
See also:
A software for solar power systems with access to online databases
As before, air source heat pumps can be computed and simulated in the same way as those with geothermal probes, which extract their heat through boreholes at depths of up to 100 metres. However, heat pump systems can also be designed that use groundwater or geothermal heat collectors laid horizontally in the ground as a heat source. The software calculates the annual energy yield in addition to the performance factor and gives information about the economic efficiency and the reduction of pollutants compared to conventional systems. (mfo)
