U.S. Boiler unveils hydronic heat pump for residential applications
The US-based manufacturer said its new heat pump system has 5-ton capacity and a coefficient of performance of up to 3.95. It uses difluoromethane (R32) as the refrigerant and relies on DC inverter enhanced vapor injection (EVI) technology.
LG presents residential air-to-water heat pump
The system uses difluoromethane (R32) as the refrigerant and has reportedly a seasonal coefficient of performance of up to 4.69.
Hybridizing thermoelectric generators with photovoltaic ground-source heat pumps
Researchers in South Korea have analyzed the feasibility of using thermoelectric generators in combination with residential solar-assisted ground-source heat pumps and have found that the thermoelectric devices may act as a suitable power source for data loggers and other sensors in a building system.
Aira launches new heat pumps for residential buildings
The new heat pumps use propane (R290) as the refrigerant and have a seasonal coefficient of performance of 4.7. The maximum temperature outlet is 70 C and the maximum cooling power spans from 8 kW to 13 kW.
Transcritical CO2 air source heat pump for residential buildings
A research group designed a solar-assisted CO2 heat pump system that can reportedly achieve a lower levelized cost of energy than gas boilers in residential building in the United Kingdom. The system has the potential to achieve a coefficient of 5.1.
Mitsubishi Heavy Industries debuts air source inverter heat pump
Conceived for residential, commercial, and industrial applications, the Hydrolution PRO heat pump has a coefficient of performance of up to 3.47 and a seasonal coefficent of performance of up to 4.59. It uses difluoromethane (R32) as the refrigerant.
FläktGroup unveils heat pump with seasonal coefficient of performance of up to 4.76
The Swedish manufacturer said its new heat pump is an ideal solution for offices, shops, hotels and industrial buildings. The new product has a size of 15 kW to 41 kW and uses difluoromethane (R-32) as a refrigerant.
Kensa launches residential heat pump with coefficient of performance of 4.36
The UK manufacturer said its new ground-source heat pump has an nominal thermal rating of 3-6 kW and is able to produce hot water temperatures up to 65 C.
PVT-assisted heat pump for residential water heating
A group of scientists in China has designed a residential heat pump system with a potential cofficient of performance of 4.271 at -5 C. The system is reportedly able to adjust the required pressures based on solar irradiance intensity and ambient temperature
Performance assessment of air-source heat pumps in office buildings
Scientists have analyzed the performances of two air-source heat pumps in two small office buildings in China during the heating season. They identified the instantaneous load of the building as a critical cause of low energy efficiency.
