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Photovoltaic panel integrated with phase change materials (PV-PCM): technology overview and materials selection
摘要： In recent years, the utilization of phase change materials (PCMs) in photovoltaic (PV) module for thermal regulation has attracted wide attention in this field, as the hybrid PV-PCM technology can not only achieve higher photoelectric conversion efficiency but also make it possible to extract thermal energy stored in PCMs for cascade utilization. Although substantial research has been carried out on PV-PCM systems, the promise of practical application is still far from clear with some barriers unsolved, such as PCMs which need further improvements in both technical and economical view. In this paper, a comprehensive literature review of the state-of-the-art aspects of PV-PCM systems is presented, with the focus on technology overview and materials selection. The concept of hybrid PV-PCM system is first discussed with its general configuration and energy balance, to figure out the key factors affecting its performance. Besides, the development route of PV-PCM research is outlined through a comprehensive review of 104 research articles during 2004–2018, clarifying the representative achievements and existing problems in each stage. Furthermore, PCMs are highlighted in this paper with details on their classification, properties, and application in previous PV-PCM research. In particular a triangle about materials selection criteria and determination strategy of phase transition temperature is proposed. Finally, the challenges and prospects of future research on PV-PCM systems are raised, advocating that more attention should be addressed on new strategies to overcome the existing problems such as insufficient reliability and economic feasibility.
关键词： Phase change material (PCM),PV cooling,PV-PCM,Solar photovoltaic (PV),Review
更新于2025-09-16 10:30:52
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[IEEE 2019 3rd International Symposium on Multidisciplinary Studies and Innovative Technologies (ISMSIT) - Ankara, Turkey (2019.10.11-2019.10.13)] 2019 3rd International Symposium on Multidisciplinary Studies and Innovative Technologies (ISMSIT) - Use of Hybrid Photovoltaic-Thermal (PV/T) Solar Modules for Enhancing Overall System Efficiency
摘要： Hybrid Photovoltaic/Thermal systems, also called as PV/T systems or solar cogeneration systems, are innovative power generation technologies that convert solar radiation into usable thermal and electrical energy. Such systems combine a solar cell, which convert sunlight into electricity, with a solar thermal collector, which captures the remaining energy and removes waste heat from PV module. PV/T systems have a greater overall performance than the PV systems and solar thermal systems separately. In order to improve the performance of PV/T systems a lot of the studies have been done and researchers still keep on investigating these systems. A comprehensive review on these previous research studies are presented here. Many methods and approaches to enhance the performance of the PV/T systems are discussed along with the mathematical models used. The gaps in existing literature are identified and recommendations for future research are precisely outlined. It is emphasized here that only few experimental studies on PV/T systems based nanofluid materials are exist. Therefore, comprehensive experimental studies under real atmospheric conditions should be done with these systems, without neglecting effects of variations in mass flow rate of nanofluids,
关键词： PV hybrid,PVT,Solar energy,PVT-PCM,renewable energy
更新于2025-09-16 10:30:52
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Research on applications of phase change materials in solar cell thermal control
摘要： In order to grasp the characteristics of phase change material (PCM) in solar cell thermal control, a two-dimensional thermal control structure model of PV/PCM solar cell thermal control system was established, and study was conducted on influence of PCM phase change temperature, thermal conductivity, latent heat value, etc. on the temperature control characteristics of solar cells. The results show that PCM phase change temperature, thermal conductivity, latent heat value will affect solar cell temperature control characteristics in varying degrees. At the same time, thermal control characteristics of PCM are greatly affected by environmental meteorological conditions (solar irradiance, ambient temperature). The research results provide a reference for optimization design of PV/PCM solar cell thermal control system.
关键词： thermal control,phase change materials,solar cell,PV/PCM system
更新于2025-09-16 10:30:52
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Evaluation and Design Criteria of Photovoltaic Thermal (PV/T)
摘要： More interesting research in the field of photovoltaic thermal is being conducted widely due to shifting interest in supplying both electrical and thermal needs especially in areas that suffer from small installation space. Photovoltaic thermal (PV/T) offers to produce both electricity and thermal power from solar irradiance within the same area; therefore, saving up space & other costs directed to installation. Moreover, various techniques & types have been studied and implemented to improve PV/T’s performance and combined efficiency. The aim of this paper is to review the fundamentals of this technology, current works in the field and show innovative designs of PV/T to illuminate the way forward for the technology for globe-wide recognition. Nanofluid and nano-PCM based PV/T collector was found to produce the highest efficiency among other types in tropical climate conditions. The performance evaluation criteria for this system was presented and explained. It is recommended to amend the current design by simplifying it for better use in building integrated applications and for residential consumers.
关键词： Photovoltaic thermal,Combined efficiency,PV/T,Nanofluid,Nano-PCM,Renewable energy,Solar energy
更新于2025-09-16 10:30:52
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[IEEE 2019 18th International Conference on Optical Communications and Networks (ICOCN) - Huangshan, China (2019.8.5-2019.8.8)] 2019 18th International Conference on Optical Communications and Networks (ICOCN) - A Mathematical Expression of Bit Error Rate of PCM-FM using Non-coherent Detection
摘要： there telemetry. However, PCM/FM, also known as CPFSK, is widely used in aeronautical theoretical expression of its bit error rate in the literature. In this paper, based on the analysis of non-coherent detection of PCM/FM signal, a mathematical expression is derived. The analytical result is verified by computer simulation and compared with other modulation schemes and the proposed expression can significantly benefit the system design and evaluation of receiver performance.
关键词： bit error rate,CPFSK,telemetry,PCM/FM,demodulation
更新于2025-09-16 10:30:52
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A Simulation Study on Performance Improvement of Solar Assisted Heat Pump Hot Water System by Novel Controllable Crystallisation of Supercooled PCMs
摘要： Domestic hot water (DHW) has a significant share in building’s energy consumption. In order to reduce this consumption, various solutions have been proposed such as controlling the system in an efficient way, using renewable sources and using phase change materials (PCM) in the system to increase heat capacity. However, this study is not only offering heat capacity improvement of the DHW storage unit but also proposing that energy efficiency can be improved by controlling the heat releasing time of the PCM. In this study, supercooled PCM tubes are placed in a water tank and charged with a solar assisted heat pump unit, these supercooled PCM tubes can then be discharged anytime when the hot water is required. In this paper, a transient thermodynamic model is built for the whole system including solar collector, heat pump, water tank with PCM and DHW demand profile. System components are modelled and a 24 hours of demand profile is used in simulation for a UK home for summer and spring weather conditions. The results show that the PCM tubes effectively compensate the morning peak hot water demand and reduce daily energy consumption around 12.1% and 13.5% by shifting heating provision from immersion heater to solar heat pump.
关键词： Transient thermodynamic simulation,DHW,Supercooled PCM,Solar assisted heat pump
更新于2025-09-16 10:30:52
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Performance analysis of a photovoltaic panel integrated with phase change material
摘要： The conversion efficiency of photovoltaic (PV) panels is reduced while the PV temperature rises. It is revealed that that every Celsius degree rise in PV temperature can result in as large as a 0.65% drop in the efficiency. This phenomenon attracts substantial scholar attentions in mitigating and controlling the PV temperature. Among those applied techniques, phase change material (PCM) is considered as a potential candidate to hold the PV temperature at a low degree because of its latent heat storage. The integrated system is therefore named PV-PCM system. In this study, the daily performance and viability of this system was evaluated through simulation, illustrating that the temperature of PV can be reduced by 24.9°C through adding PCM, and hence the electricity output increased by up to 11.02%. This study also demonstrates that the latent heat capacity of PCM and natural convection of melted PCM can control PV temperature and enhance the heat dissipation rate from PV to PCM rate by 4 to 5 times.
关键词： Photovoltaic,Phase change material,PV-PCM,Passive cooling,Thermal management
更新于2025-09-12 10:27:22
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Integrative passive and active cooling system using PCM and nanofluid for thermal regulation of concentrated photovoltaic solar cells
摘要： An integration of passive and active cooling systems for thermal regulation of concentrated photovoltaic (CPV) solar system has been developed and modeled. A heat storage battery of phase change material (PCM) is combined with a closed loop water cooling system in the developed design. A two dimensional model has been developed for the simulation of the CPV layers with the integrated cooling system. Results have been investigated to evaluate the thermal and electrical performances of the system components and the entire system. Further investigations have been conducted to study the effects of different arrangements of the PCM plates in the water tank on the system performances. Enhancing the system performance by using nanofluid as heat transfer fluid (HTF) was also evaluated. Results showed that the proposed system achieves 60% reduction in the CPV average temperature compared to the conventional direct PCM-PV and water-cooling individual systems. At 10 concentration ratio (CR) and 0.01 m/s HTF velocity, the cell temperature does not exceed 78 °C. Moreover, the PCM maximum temperature is kept below the degradation temperature limit. The effect of the PCM plates’ arrangements in the water tank on the system performance is negligible. Using nanofluid as HTF enhancer increases the CPV efficiency by 2.7% and reduces the PV maximum temperature and the PCM melting time by 4 °C and 12%, respectively.
关键词： Concentrated photovoltaic,Integrative passive-active cooling system,PCM,Thermal regulation,Nanofluid
更新于2025-09-12 10:27:22
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Exergo-economic analysis of a serpentine flow type water based photovoltaic thermal system with phase change material (PVT-PCM/water)
摘要： An investigation on PVT-PCM/water system has been carried out under the weather conditions at Kottayam (9.5425 °N, 76.8202 °E), India. In the present paper, experimentations have been done to compare the overall performance of PV and water-based PVT-PCM panels. The PVT-PCM/water system has been analysed under various outdoor environmental conditions and it has been recorded that the integration of PCM contributed to an improved thermal and overall efficiency of 26.87% and 40.59% respectively, along with a rise in electrical efficiency by 17.33% compared with conventional PV panel. It has been found that the payback time for the water-based PVT-PCM system is about 6 years on the overall exergy basis, which is 11.26% shorter compared to conventional PV panels. Also, the water-based PVT-PCM system has long-term lifecycle conversion efficiency compared to conventional PV panel by about 27%.
关键词： Photovoltaic,PCM,Exergy,Optimization,Thermal management
更新于2025-09-12 10:27:22
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Parallel Simulation of Fully Coupled Electrothermal Processes in Large-Scale Phase-Change Memory Arrays
摘要： Numerical simulation of fully coupled electrothermal processes in phase-change memory (PCM) arrays is performed in this article. For realizing the ability in simulating the electrothermal responses of large-scale PCM arrays, an in-house parallel simulator based on domain decomposition method (DDM) and time-domain finite element method (FETD) is developed, with its performance evaluated in terms of accuracy and scalability. Then, thermal crosstalk in the PCM array is investigated using the developed simulator, and a diamond layer is introduced to suppress thermal crosstalk. Furthermore, the scaling effects of PCM arrays on their electrothermal performance are examined. A scheme for multibit PCM design is proposed, and the electrothermal characteristics of proposed 2-bit PCM cells and arrays are studied numerically.
关键词： phase-change memory (PCM),multibit PCM,parallel computing,time-domain finite element method (FETD),Electrothermal simulation,thermal crosstalk
更新于2025-09-11 14:15:04