Energy, Journal Year: 2024, Volume and Issue: unknown, P. 134095 - 134095
Published: Dec. 1, 2024
Language: Английский
Applied Thermal Engineering, Journal Year: 2025, Volume and Issue: 267, P. 125725 - 125725
Published: Jan. 31, 2025
Language: Английский
Citations
1
Energy, Journal Year: 2024, Volume and Issue: unknown, P. 134251 - 134251
Published: Dec. 1, 2024
Language: Английский
Citations
6
Renewable Energy, Journal Year: 2024, Volume and Issue: 232, P. 121065 - 121065
Published: Oct. 1, 2024
Language: Английский
Citations
5
International Journal of Thermofluids, Journal Year: 2024, Volume and Issue: 23, P. 100783 - 100783
Published: July 28, 2024
Solar energy is considered a clean and promising source of energy. The vapor compression heat pump technology identified as the most suitable efficient method to fulfill both cooling heating needs. Researchers have acknowledged potential combining these two technologies pave way for sustainable solutions achieve zero-carbon footprint. This study provides detailed overview current research progress in solar-assisted pumps. Various configurations utilized their performances are thoroughly analyzed. Progress design subcomponents, solar systems, sources also examined. Key performance indicators highlighted discussed. delves into investigation different refrigerants, natural synthetic, performances. transferring low-temperature findings high-temperature applications explored. It can be noted that trend outcome HP supporting HTHP remarkable level. Additionally, an in-depth economic analysis conducted assess cost benefits integrating various systems with systems. An environmental assessment carried out determine reduction emissions. integration proves beneficial attributes. Lastly, outlines future development directions technologies.
Language: Английский
Citations
4
Energy, Journal Year: 2025, Volume and Issue: unknown, P. 136074 - 136074
Published: April 1, 2025
Language: Английский
Citations
0
Sustainability, Journal Year: 2025, Volume and Issue: 17(5), P. 2272 - 2272
Published: March 5, 2025
Amid escalating global energy demand and heightened environmental concern, this study presents an innovative photovoltaic–thermal flash-tank vapor injection heat pump (PFVHP). This system integrates a (PVT) module into conventional (FVHP) to realize simultaneous heating power generation. Two distinct operation modes are designed for the PFVHP: TS-mode (two-source mode) most solar radiation conditions AS-mode (air-source low- or no-solar-radiation conditions. The energy, exergy, economic, operational emission performance of PFVHP theoretically analyzed compared with those FVHP. findings reveal that can achieve maximum cycle coefficient (COP) at respective optimal intermediate pressures. Exergy analysis indicates enhancing helps produce more exergy electricity, but reduces efficiency. As evaporating temperature ranges from −20 °C 5 °C, COP are, respectively, 8.5% 6.3% 50.0% 35.2% higher than flow comparison demonstrates significantly enhances by reducing overall loss in devices excluding PVT module, benefiting absorption module. Economic analyses indicate offers payback period 9.38 years substantially air pollution emissions
Language: Английский
Citations
0
Energy Conversion and Management, Journal Year: 2024, Volume and Issue: 320, P. 118994 - 118994
Published: Sept. 4, 2024
Language: Английский
Citations
3
Buildings, Journal Year: 2024, Volume and Issue: 14(8), P. 2410 - 2410
Published: Aug. 5, 2024
Air-source heat pumps (ASHPs), as an active device, are widely used in building heating and cooling processes. However, severe cold regions, they face reduced efficiency frosting problems winter. This paper proposes a new solution by coupling ASHP with passive systems. It combines sunrooms storage systems for heating. Through software simulations mathematical modeling, the scheme is compared analyzed against traditional solutions to explore performance of this rural houses regions China during According simulation calculation analysis, on coldest day winter, can provide approximately 99.41 kWh indoors, which exceeds 86.67 required maintain indoor temperature 20 °C. The system’s power consumption 36.96 kWh, 66.88% lower than that pump study shows system has good effect regions. For situation insufficient solar energy at night, design phase-change materials media meet needs throughout day.
Language: Английский
Citations
2
Renewable Energy, Journal Year: 2024, Volume and Issue: 226, P. 120391 - 120391
Published: March 26, 2024
Language: Английский
Citations
1
Energy and Built Environment, Journal Year: 2024, Volume and Issue: unknown
Published: April 1, 2024
In this study, a numerical model is proposed via MATLAB software to respond the dynamic indoor heating and cooling loads. This combines spectral splitting PV/T systems sky radiative achieve switchable heating, cooling, electricity harvesting. Especially in summer, application of radiation technology can lower energy consumption buildings. Meanwhile, outdoor parameters operating factors are studied explore effects on electric power power. Results indicate threshold value solar for running daytime mode or nighttime vital output performance, optimal recommended as 150W/m2 regulate system. The flow velocity affects convective heat transfer between flowing water glass. As increases from 0.0005m/s 0.0040m/s, mean improves 41.3W 54.1W 62.6W 96.4W respectively. Hence, it suggested employ 0.0040 m/s augment system's capacity adopt channel thickness 5mm, which effectively reduce material costs without substantially compromising output.
Language: Английский
Citations
1