Research progress of phase change thermal storage technology in air-source heat pump

Ning, Zhaozhong; Zhang, Xuelai; Ji, Jun; Shi, Yao; Fu-lin, DU

doi:10.1016/j.est.2023.107114

Cited by 8 publications

(3 citation statements)

References 90 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The winter set-point temperature was established at 21 • C, and in summer, it was set to 26 • C. The occupancy profile followed the schedule depicted in Figure 2. Initially, the building was assumed to be located in Milan, characterized by a continental climate classified as subtype CFb' (marine west coast climate) according to [19]. Successively, simulations were also conducted in Messina, which features a hot Mediterranean/dry-summer subtropical climate as per the same classification.…”

Section: Case Study Buildingmentioning

confidence: 99%

“…Successively, simulations were also conducted in Messina, which features a hot Mediterranean/dry-summer subtropical climate as per the same classification. Initially, the building was assumed to be located in Milan, characterized by a continental climate classified as subtype 'CFb' (marine west coast climate) according to [19]. Successively, simulations were also conducted in Messina, which features a hot Mediterranean/drysummer subtropical climate as per the same classification.…”

Section: Case Study Buildingmentioning

confidence: 99%

“…Ning et al analyzed the combination of phase change thermal storage technology with air-source heat pumps, improving the performance coefficient and stability of air-source heat pumps operating in a low-temperature environment. The findings indicated that incorporating phase change materials (PCMs) led to a substantial enhancement in heating time by up to 30.6% and an increase in COP of up to 33.9% at a temperature of 35 • C. However, at 55 • C, this inclusion may trigger an adverse effect [19]. Furthermore, the operation time of the compressor can be reduced by as much as 16.5% at 35 • C, but it increases by up to 15.7% at 55 • C. The study emphasized the importance of balancing sensible and latent heat storage.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Solar-Assisted Heat Pump with Electric and Thermal Storage: The Role of Appropriate Control Strategies for the Exploitation of the Solar Source

Perrella,

Bisegna,

Bevilacqua

et al. 2024

Buildings

View full text Add to dashboard Cite

In the EU, the building sector is responsible for 40% of the global energy consumption for final uses and 36% of the carbon dioxide (CO2) emissions. Heat pumps allow for the replacement of conventional systems based on fossil fuels with the perspective of combining PV and solar thermal collectors. In order to rationalize the use of the solar source, this paper examined the self-consumption electricity share, the CO2 equivalent emissions, and the domestic hot water demand covered by renewable sources which were determined in two opposite climatic conditions. These involved both electric and thermal storage systems and considered two different control strategies. The first is commonly used for the management of air-conditioning systems, the second was specifically conceived to maximize the exploitation of the solar source. Results showed that the latter significantly reduced grid dependence in both locations, determining the direct satisfaction of 76% of the thermal and electric loads through the PV self-consumption, determined by 18 kWp of installed PV and a battery capacity of 24 kWh. In terms of equivalent CO2 emissions, when the two control strategies were compared, a remarkable reduction in emissions was registered for the latter, with percentages ranging between 8% and 36% as a function of PV surface and battery capacity. The analysis of domestic hot water supplies revealed disparities between the two localities: the colder first, relied more on heat pumps for water heating, while the warmer second, benefitted from the large availability of solar radiation.

show abstract

Section: Case Study Buildingmentioning

confidence: 99%

Section: Case Study Buildingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation