Results 21 to 30 of about 284,823 (311)

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

Simulation, implementation and monitoring of heat pump load shifting using a predictive controller [PDF]

open access: yes, 2017
A predictive load shifting controller has been developed and deployed in a low-carbon house near Glasgow, UK. The house features an under floor heating system, fed by an air-source heat pump. Based on forecast air temperatures and solar radiation levels,
Allison, John   +5 more
core   +1 more source

Air source heat pump assisted drying for food applications [PDF]

open access: yesCroatian journal of food science and technology, 2019
Drying as one of the oldest food preservation processes is also the most energy demanding process. Nowadays, when conventional energy sources are declining, reduction/rationalization of energy consumptions in industrial processes is of great importance.
BUDŽAKI, SANDRA   +4 more
openaire   +4 more sources

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

Performance Simulation of Air-ground Hybrid Source Heat Pump Systems in Northern China

open access: yesZhileng xuebao, 2021
The air-ground hybrid source heat pump system can realize indirect air source heat pump mode and heat compensation mode through an air-water heat exchanger, which could compensate for the difference between heat extraction and heat injection to the soil.
Wang Wentao, Li Xianting, Hu Pingfang
doaj  

Scheme design and economic analysis of an office building’s cold and heat source system in hot-summer and cold-winter zone [PDF]

open access: yesE3S Web of Conferences, 2021
In the context of green development and sustainable development, in response to the national policy of “carbon neutrality and peak carbon dioxide emissions”, we will fully implement clean energy heating and reduce air pollution.
Jiang Xiangting   +5 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  

Renovation Results of Finnish Single-Family Renovation Subsidies: Oil Boiler Replacement with Heat Pumps

open access: yesEnergies, 2022
Finland has approximately 150,000 oil-heated private homes. In 2020, the Finnish government launched subsidies for private homeowner energy renovations.
Paula Sankelo   +3 more
doaj   +1 more source

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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