Results 21 to 30 of about 287,587 (259)

Innovative Process Integrating Air Source Heat Pumps and Direct Air Capture Processes

open access: yesIndustrial & Engineering Chemistry Research, 2022
Most integrated assessment models indicate a need for technological carbon dioxide removal from the atmosphere to achieve climate mitigation targets. Currently, direct air capture (DAC) appears to be one the “backstop” technologies suitable to provide this service.
Grazia Leonzio, Nilay Shah
openaire   +4 more sources

Assessing heat pumps as flexible load [PDF]

open access: yes, 2013
In a future power system featuring significant renewable generation, the ability to manipulate domestic demand through the flexible operation of heat-led technologies such as heat pumps and micro-combined heat and power could be a critical factor in ...
Boardman B   +8 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

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

Experimental investigation of an Air Source Heat Pump [PDF]

open access: yesE3S Web of Conferences, 2019
An experimental investigation were driven to catch all working parameters of an Air Source Heat Pump such as temperature differences between refrigerant working states and evaporator respectively condenser environment temperatures. Heat Pump compressor were monitored to know inlet and outlet refrigerant temperatures to build working diagram of the heat
Tălpigă Mugurel Florin   +2 more
openaire   +2 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

The performance of an ASHP system using waste air to recover heat energy in a subway system [PDF]

open access: yes, 2019
In this short communication, we demonstrate that the performance of a typical air source heat pump (ASHP), exploiting a relatively stable air temperature within a subway environment, is high, even during the peak heating months.
Aaen, Bjorn   +3 more
core   +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  

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

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  

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