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.
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.
Abandonded mine water source heat pump system for residential applications
Chinese researchers have designed an abandoned mine water source heat pump system that can reportedly perform better than gas boilers in residential buildings. It consists of a submersible pump, a plate heat exchanger, a water source heat pump, a circulating water pump, and an end section.
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.
Heat pump sales drop in Europe for first time in a decade
Heat pump sales fell by 5% in 14 European countries last year, reversing the trend of annual sales increases over the last decade.
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.
UK researchers identify optimal heat pump design minimizing system transition costs
Researchers led by the Imperial College London have analyzed the effects different kinds of air-to-water heat pumps will have on the UK energy system, based on their coefficient of performance and price. They also identified a point of diminishing returns, after which it is more cost-effective to invest in centralized energy generation and storage.
