Regarding the characteristics and performance of an innovative dual source heat pump (DSHP) for heating, cooling down and household hot water (DHW) production. The investigation function was performed inside the framework of the H2020 European task: Geotch ‘GEOthermal Technology for financial Cooling and Heating’. The DSHP has the capacity to pick the most favourable resource/sink in a manner that it can serve as an air-to-water heat pump using the air being a source/kitchen sink, or as being a brine-to-water heat pump combined to the floor. The DSHP is manufactured being an outdoor ‘plug & play’ device, dealing with R32 refrigerant and including a variable velocity compressor, that gives complete capabilities to have an effective modulating procedure. The DSHP was fully characterized in steady state problems in the IUIIE laboratory.
To be able to evaluate its dynamic overall performance as well as identify important control approaches to optimize its yearly procedure, an entire incorporated type of the DSHP program in TRNSYS like the DSHP and all the other program elements was developed. A first power evaluation, carried out for the office developing based in the Holland, demonstrates that the DSHP program would be able to reach an identical efficiency compared to a 100 % pure ground source heat pump (GSHP) program with fifty percent the floor source heat exchanger area needed. Therefore, the DSHP system could be a inexpensive alternative solution for heating, cooling and DHW production in structures, since the initial purchase could be significantly reduced in comparison to GSHPs, with similar as well as higher energy efficiency.
According to the Heat pump industry, buildings account for almost 1 / 3 from the last global power usage, and they are an essential way to obtain CO2 emissions. In particular, home heating, air flow and atmosphere-conditioning techniques (HVAC) make up approximately 50 % of worldwide energy consumption in structures. The industry is growing, so it will be bound to improve its energy consumption. Therefore, decrease in power usage and the usage of energy from green sources inside the building sector make up essential vectors to reduce the green house gasoline pollutants. With regards to space heating and cooling using superficial geothermal energy as a alternative energy source, ground resource heat pump (GSHP) techniques become just about the most efficient heating and air conditioning green systems available today. These techniques make use of the floor as being a source of heat or warmth kitchen sink, dependant upon the season, so that you can provide structures with cooling and heating, correspondingly. Nevertheless, they imply the usage of refrigerants within the heat pump refrigeration cycle which may have an impact inside the ozone coating depletion and climate change.
Thankfully, the present trend is always to switch to new refrigerants with no impact inside the ozone coating as well as a reduced climatic change possible. Nowadays, the GSHPs which can be available in the market are working with these type of refrigerants, like HFCs or HFOs (e.g. R32). Concerning the immediate and indirect pollutants, the current GSHPs are generally manufacturer protect gear, so the immediate emissions of refrigerant are minimal and practically the totality in the refrigerant is recovered at the end of the heat pump lifestyle. Furthermore, as the energy usage of these techniques is lower than conventional ones, the indirect emissions are also reduced.
GSHP techniques have proved to be better than conventional air-to-water heat pumps, as demonstrated by the heat pump business, who figured that GSHP techniques often leads up to a 40% cost savings in yearly electricity usage, when compared with atmosphere to prvtur water conventional heat pumps. Nonetheless, one of the primary drawbacks of GSHPs is the higher purchase price. Therefore, a decrease in each construction and procedure expenses is necessary for such systems to be successful, specifically for Southern Countries in europe where marketplace of GSHP systems has not removed yet.