Energy savings potential of a desiccant assisted hybrid air source heat pump system for residential building in hot summer and cold winter zone in China

Ge, Fenghua; Guo, Xiaofeng; Hu, Zicheng; Chu, Yi

doi:10.1016/j.enbuild.2011.09.021

Cited by 44 publications

(5 citation statements)

References 21 publications

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“…An air source heat pump system was applied to supply regeneration heat from condenser dissipated heat. The operation result showed that the primary energy consumed for regeneration could be saved by 50%, while the total system energy consumption could be reduced by 37% [35]. Fong et al proposed the application of solar energy as the heat source in the desiccant wheel.…”

Section: Dehumidificationmentioning

confidence: 99%

A review of the advance of HVAC technologies as witnessed in ENB publications in the period from 1987 to 2014

Huang

Niu

2016

Energy and Buildings

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Section: Dehumidificationmentioning

confidence: 99%

A review of the advance of HVAC technologies as witnessed in ENB publications in the period from 1987 to 2014

Huang

Niu

2016

Energy and Buildings

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“…Han et al [18] introduced a new isothermal dehumidification method for an indoor air conditioning system, in which the cooling mode and isothermal dehumidification mode can be switched by a switching valve. Ge et al [19] proposed a new air-source heat pump system, which combined radiant cooling/heating for residential buildings. The desiccant wheel and cooling coil completed the dehumidification process together, and the heat required by the desiccant wheel was from the condenser.…”

Section: Introductionmentioning

confidence: 99%

An Anti-Condensation Radiant Heating Floor System in Buildings under Moistening Weather

Liang

Lan

et al. 2023

Sustainability

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In most regions of southern China, condensation frequently occurs on building surfaces during the period from March to April. This phenomenon has been affecting people’s safety and structural properties. This article proposes an innovative anti-condensation floor system based on the reverse Carnot cycle. The evaporation side treats the air and reduces the moisture content, and the heat extracted from the condensation side is recovered by a heat exchanger and transferred to the floor through capillary mats. Simulation studies of the dynamic operation performance have been conducted through the TRNSYS 18 software. The results show that an innovative anti-condensation floor system can effectively keep the floor dry in Guilin. At the same time, regarding the indoor comfort level index, the PMV value is within ±0.5, and the energy consumption of the system is 42% less than that of the cooling dehumidification system. The system also performs well in representative cities where the air moisture content is less than 12 g/kg. This article also provides a reference for the feasibility of radiant floor systems in humid climate areas.

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“…The IHX technology became more and more effective as the ambient temperature dropped lower and lower. In addition, some scholars have studied methods to improve the heating performance of the ASHP, such as using innovative systems with small temperature difference heat transfer terminals, seeking specific operational strategies, and optimizing unit design (Ge et al, 2011;Touchie and Pressnail, 2014;Vieira et al, 2015). In summary, the heating performance of the ASHP heating system varies under different conditions and outdoor air temperatures.…”

Section: Introductionmentioning

confidence: 99%

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

2021

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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 ventilation conditions of the outdoor unit will influent the heating performance of the air source heat pump. It is necessary to study the effect of the outdoor unit ventilation conditions on the heating performance of residential household heat pumps. This paper experimentally studied the heating performances of an air source heat pump system with the outdoor unit mounted in a balcony in different external ventilation conditions. The results indicate that the ventilation conditions for the outdoor units have a significant effect on the heating performance of the system. When the inlet of the outdoor unit was close to the sliding door and completely blocked, the ventilation environment was the worst and the coefficient of performance (COP) was the lowest. In addition, the unfavorable ventilation environment could result in a reduction of the COP by 26.2%. When the inlet of the outdoor unit was partially blocked, the heating performance could be improved and the COP was also slightly improved. The great heating performance was obtained under the cross-ventilation condition. This paper can guide the design of the installation position of the household air source heat pump outdoor units in actual engineering.

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Energy savings potential of a desiccant assisted hybrid air source heat pump system for residential building in hot summer and cold winter zone in China

Cited by 44 publications

References 21 publications

A review of the advance of HVAC technologies as witnessed in ENB publications in the period from 1987 to 2014

A review of the advance of HVAC technologies as witnessed in ENB publications in the period from 1987 to 2014

An Anti-Condensation Radiant Heating Floor System in Buildings under Moistening Weather

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

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