Coupling ground-source heat pumps with heat storage, borehole heat exchangers
Scientists from China have developed a novel optimization method for medium-depth ground source heat pumps, using an improved chaos particle swarm optimization. They coupled it with either a heat storage tank or a shallow borehole heat exchanger and found that both system typologies increase the heat pump’s coefficient of performance.
Hybridizing PVT energy with heat pumps, borehole storage
A European research group has tested an energy system combining PVT collectors, a water-to-water heat pump and borehole thermal energy storage in an Italian swine farm and has found the proposed system can completely replace fossil fuel-based power generation.
Façade-integrated R290 split-type heat pump for domestic hot water
Researchers in Austria have developed a new heat pump system for residential applications that reportedly achieves a coefficient of performance ranging from 2.82 to and 3.11 at an outdoor air temperature of 10 C and 20 C, respectively. They also found the system was able to supply the comfort conditions at all tested outdoor temperatures.
Havells India unveils heat pump water heater
Havells India’s new 3.5 kW HP30 White Silver (300 L) system has a rated power input of 940 W. The manufacturer says it is ideal for large households.
Delayed EU heat pump plan puts EUR 7 billion at risk, warn 61 industry chiefs
Sixty-one heat pump industry chiefs have signed a letter to European Commission President Ursula von der Leyen, warning that delaying the EU Heat Pump Action Plan jeopardizes a key net-zero European industry.
How to combine residential heat pumps with PV, battery storage
New research from Germany’s Fraunhofer Institute for Solar Energy Systems (Fraunhofer ISE) has shown that combining rooftop PV systems with battery storage and heat pumps can improve heat pump efficiency while reducing reliance on grid electricity.
New research shows potential of hydrogen-source heat pumps
A new research project, thought to be the first to assess hydrogen as an energy source for heat pumps, has found that hydrogen-backed heat pumps could be an eco-friendly option for the building sector and support decarbonization in line with the UK’s net-zero targets.
Germany hits 356,000 heat pump installations in 2023
Heat pump sales in Germany rose by more than 50% for the second year in a row in 2023, according to new figures from Bundesverband Wärmepumpe (BWP).
Rising CO2 prices could make PV heat pumps cheap choice for German homes
Germany’s Fraunhofer Institute for Solar Energy Systems (Fraunhofer ISE) says rising CO2 prices could make PV-powered heat pumps the most cost-effective choice for residential heating in the country, with heat pump uptake and district heating adoption proving more economical than replacing gas heating.
Thermoacoustic refrigerator-heat pump with direct-coupling configuration
Researchers in China have designed a heat-driven thermoacoustic refrigerator/heat pump for room refrigeration. They said the system is easily combinable with PV energy and its coefficient of performance can reach up to 1.69.
