Results 11 to 20 of about 8,926,589 (248)

Analysis of retrofit air source heat pump performance : results from detailed simulations and comparison to field trial data [PDF]

open access: yes, 2011
In the UK, gas boilers are the predominant energy source for heating in housing, due primarily to the ready availability of natural gas. The take-up of heat pumps has lagged far behind Europe and North America.
Kelly, N.J., Cockroft, J.
core   +4 more sources

Sub-hourly simulation of residential ground coupled heat pump systems [PDF]

open access: yes, 2008
Residential Ground Coupled Heat Pump systems are usually characterised by an ON/OFF behaviour of the heat pump with typical cycling frequencies of 1 - 4 cycles per hour.
Bernier, Michel, Kummert, Michael
core   +4 more sources

Simplified modelling of air source heat pumps producing detailed results [PDF]

open access: yes, 2012
Created by the Building Research Establishment (BRE), the Standard Assessment Procedure (SAP) is the UK Government‟s recommended method of assessing the energy ratings of dwellings.
Baster, Michael Eric   +3 more
core   +3 more sources

Domestic Heat Pump System With Solar Thermal Collectors as Heat Source and Annual Ice Storage [PDF]

open access: yes, 2012
Aim of this paper is a theoretical and experimental investigation of a domestic heating system with heat pump using solar thermal collectors as the only heat source.
Gschwend, Andreas, Bertsch, Stefan S.
core   +1 more source

Seasonal performance assessment of a Dual Source Heat Pump system for heating, cooling and domestic hot water production [PDF]

open access: yes, 2018
In order to contribute to a global CO2 emissions reduction in 2020, the increase in the use of highly efficient heat pumps for heating, cooling and domestic hot water production in buildings is very recommendable.
Corberán, José M.   +9 more
core   +1 more source

Ground-Source Heat Pumps with Horizontal Heat Exchangers for Space Cooling in the Hot Tropical Climate of Thailand

open access: yesEnergies, 2019
The cooling of spaces in tropical regions, such as Southeast Asia, consumes a lot of energy. Additionally, rapid population and economic growth are resulting in an increasing demand for space cooling.
Arif Widiatmojo   +6 more
doaj   +1 more source

Study on the Performance of Multiple Sources and Multiple Uses Heat Pump System in Three Different Cities

open access: yesEnergies, 2020
Various efforts have been made worldwide to reduce energy use for heating, ventilation, and air-conditioning (HVAC) systems and lower carbon dioxide (CO2) emissions. Research and development are essential to ensuring the efficient use of renewable energy
Hongkyo Kim   +3 more
doaj   +1 more source

Research on Defrosting System of Air-source Heat Pump with Liquid Storage Gas-liquid Separator

open access: yesZhileng xuebao, 2022
The surface of an outdoor evaporator can easily frost when an air-source heat pump is used for heating during winter. The most common defrosting method, reverse cycle defrosting, has safety risk and long defrosting period.
Ma Longxia   +4 more
doaj  

An Experimental Study on External Ventilation to the Heating Performance of Household Air Source Heat Pump

open access: yesFrontiers in Energy Research, 2021
The external ventilation conditions have a great influence on the heating performance of the air source heat pump (ASHP) systems. The outdoor units of residential household air source heat pumps are often installed in narrow spaces such as balconies. The
Hang Zou, Zhanqiang Liu, Enshen Long
doaj   +1 more source

Performance Model of General Air Source Heat Pump in a Single Frost/Defrost Cycle

open access: yesZhileng xuebao, 2015
Conventional air source heat pump and no-frost air source heat pump can be categorized as general air source heat pump. The physical characteristics and energy consumption of general air source heat pump system in a frost/defrost cycle is analyzed based ...
Li Ning   +3 more
doaj   +2 more sources

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