Results 311 to 320 of about 288,884 (358)

Comparative life cycle assessment of the ground source heat pump vs air source heat pump

Renewable Energy, 2022
In view of the decarbonisation of the thermal sector, the use of ground source heat pumps (GSHP) plays a key role. The geothermal system coupled with heat pumps, is the most energy efficient and environmentally sustainable heating and cooling system because the ground temperature is constant all year round, unlike traditional air-source heat pumps ...
Anna Carmela Violante   +3 more
openaire   +1 more source

Energy Efficient Water Heating using Air Source Heat Pumps

2019 IEEE AFRICON, 2019
The objective of the project is to save electricity on water heating by means of measuring, verifying the energy consumption, demand and energy cost savings, as well as emission impacts. Calculations for sizing the heat pumps to match the electricity boilers output were conducted.
J. S. Hlakotsa   +3 more
openaire   +1 more source

Energy Use and Greenhouse Gas Emissions of Air‐Source Heat Pump and Innovative Ground‐Source Air Heat Pump in a Cold Climate

Journal of Industrial Ecology, 2014
SummaryThis article compares climate impacts of two heat‐pump systems for domestic heating, that is, energy consumption for space heating of a residential building. Using a life cycle approach, the study compared the energy use and greenhouse gas (GHG) emissions of direct electric heating, a conventional air‐source heat pump, and a novel ground‐source ...
Nissinen, Ari   +4 more
openaire   +6 more sources

Investigation of air-source heat pump using heat pipes as heat radiator

International Journal of Refrigeration, 2018
Abstract In this study, a concept of air-source heat pump using heat pipes as heat radiator system (ASHPP) for room heating was proposed. The heat pipes radiator was developed to replace the heating terminal equipment used in traditional heat pump plants. A tested room with artificial load was constructed and an experimental apparatus of ASHPP system
Shuxue Xu   +3 more
openaire   +1 more source

Performance of a solar air composite heat source heat pump system

Renewable Energy, 2016
For the shortcoming of air source heat pump in heating condition, a composite heat exchanger was designed which integrates fin tube and tube heat exchanger, and it can achieve synchronous and composite heat exchange in one heat exchanger between working fluids, gaseous and liquid heat source.
Yin Liu   +4 more
openaire   +1 more source

Energy effectivity of air source heat pump

2015
The paper presents the results of simulation of heat pump air-to-air. Numerical design of the main heat exchangers initially performed for a nominal re gime with heating capacity 10.5 kW: evaporator and condenser with heat exchange surface of the minimum weight of the bimetallic finned tubes with fins optimal parameters and restriction to the pressure ...
Valodzin, V. I.   +2 more
openaire   +2 more sources

Hybrid ground-source heat pump system with active air source regeneration

Energy Conversion and Management, 2015
Abstract Ground-source heat pump systems (GSHP) offer great advantages over traditional heating and cooling installations. However, their applications are limited due to the high initial costs of borehole drilling. One way to avoid these costs is by reducing the size of the borefield, e.g.
K. Allaerts, M. Coomans, R. Salenbien
openaire   +1 more source

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