Solar Energy最新文献

{"title":"Investigation of the optical and electronic properties of double perovskite Li2CuBiX6 (X = Br, I) for photovoltaic applications using first-principles and machine learning approaches","authors":"Taoufik Chargui ,&nbsp;Ramzi El Idrissi ,&nbsp;Abdelkabir Bacha ,&nbsp;Fatima Lmai","doi":"10.1016/j.solener.2025.113737","DOIUrl":"10.1016/j.solener.2025.113737","url":null,"abstract":"<div><div>The development of efficient and stable lead-free materials is essential for advancing next-generation photovoltaic technologies. In this study, we investigate Li₂CuBiX₆ (X = Br, I) double perovskites as promising absorber materials, using first-principles calculations and machine learning techniques. Density functional theory (DFT) results show indirect band gaps of 1.7 eV (Br) and 1.3 eV (I), suitable for solar energy conversion. Key optical properties, including absorption coefficient, reflectivity, refractive index and dielectric function, confirm their strong ability to capture light. A solar cell architecture FTO/ETL/Li₂CuBiX₆/HTL/Mo was modeled in SCAPS-1D, evaluating various electron and hole transport layers. SnS₂ and Cu₂O were identified as the best ETL and HTL, respectively, producing high energy conversion efficiencies of 27.24 % (Li₂CuBiBr₆) and 31.80 % (Li₂CuBiI₆). We also analyzed the effects of interfacial defects, doping concentration, absorber thickness and temperature on device performance. To predict efficiency trends and optimize configurations, we applied machine learning models (XGBoost, Random Forest, SVR). XGBoost achieved the highest accuracy, with R² = 99.87 % and a low RMSE. This work highlights the potential of Li₂CuBiX₆ as an efficient, lead-free solar absorber and demonstrates the value of combining first-principles simulations with machine learning for photovoltaic design.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"299 ","pages":"Article 113737"},"PeriodicalIF":6.0,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Developments towards the heliostat field performance testing guideline","authors":"Marc Röger ,&nbsp;Tim Schlichting ,&nbsp;Jakob Herrmann ,&nbsp;Christoph Happich ,&nbsp;Daniel Nieffer ,&nbsp;Gerhard Weinrebe ,&nbsp;Patrick Hilger ,&nbsp;Ansgar Macke ,&nbsp;Kristina Blume ,&nbsp;Fabian Gross","doi":"10.1016/j.solener.2025.113730","DOIUrl":"10.1016/j.solener.2025.113730","url":null,"abstract":"<div><div>The final quality of each individual heliostat and its interaction as a heliostat field are important factors which determine the final performance and economic success of a solar tower system. The field quality is influenced by several factors like intelligent positioning of the individual heliostat units, their interaction (blocking/shading), light attenuation to the receiver, receiver optical acceptance angles, and operational parameters like calibration quality, aimpoint strategies, heliostat availability and reliability.</div><div>The Heliostat Field Acceptance Guideline is currently being developed to assess the quality of heliostat fields. This article gives background information and experiences which have been fed into the draft version of the new guideline for the heliostat field. The draft document will be shared with the community and will be a step forward in the measurement of distributed concentrator systems. It complements and builds on the existing SolarPACES Guideline for Heliostat Performance Testing, which allows the characterization of individual heliostats. The article discusses several options for heliostat field acceptance testing. The level-2 approach, based on statistical sampling of some heliostats and subsequent raytracing with measured and extrapolated values is recommended. The draft guideline also suggests various standardized tests and qualification procedures, providing an objective method to facilitate the field acceptance testing after construction, making it easier for suppliers and customers to negotiate contracts and ultimately reduce risks and costs.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"298 ","pages":"Article 113730"},"PeriodicalIF":6.0,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of optoelectronic and photovoltaic characteristics of A2NaAlI6 (A = Rb, Cs)-based perovskite solar cells with different charge transport layers: DFT and SCAPS-1D simulation","authors":"Ahmad Ayyaz ,&nbsp;Muhammad Kaleem ,&nbsp;Amna Nasir ,&nbsp;Noura Dawas Alkhaldi ,&nbsp;Murefah mana Al-Anazy ,&nbsp;Imed Boukhris ,&nbsp;Q. Mahmood ,&nbsp;Muhammad Zulqarnain Abbasi","doi":"10.1016/j.solener.2025.113738","DOIUrl":"10.1016/j.solener.2025.113738","url":null,"abstract":"<div><div>The recent advances in perovskite solar cells (PSCs) based on halide double perovskites (DPs) have stimulated considerable investigations to improve their overall functionality due to their outstanding optoelectronic features. Due to the toxicity of lead (Pb), the emergence of A₂NaAlI₆ (A = Rb, Cs)-based PSCs is regarded as a good alternative to Pb-based PSCs. First, DFT simulations are conducted to investigate the potential of A₂NaAlI₆ (A = Rb, Cs) as an absorber layer for PSCs. The investigations examined the structural, elastic, and optoelectronic properties. The elastic properties have demonstrated the ductility and directional anisotropy in examined halide DPs, validating their viability for flexible technologies. The band diagram and density of states confirmed the direct band gap of 1.78 eV and 1.7 eV, along with the significant contribution from electronic states of I-p, Na-s, and Al-p orbitals. The dielectric parameters<!--> <!-->and the absorption coefficient are substantial in the visible range of energy, confirming<!--> <!-->their immense value in solar energy technologies. This study also performed numerical simulation to examine the combination of the hole transport layers (HTLs) and electron transport layers (ETLs) with the A₂NaAlI₆ absorber layer using the SCAPS-1D simulation. The designed combinations, ITO/ETL/A₂NaAlI₆/HTL with six combinations of CSTO, ZnS, and PEIE as the ETLs, MoO₃ and CuAlO₂ as the HTLs are optimized to demonstrate the photovoltaic features of simulated PSCs. The different combinations demonstrated varied efficiencies, among which the ITO/CSTO/A₂NaAlI₆/CuAlO₂ combinations have revealed the highest PCE at 25.12 % and 27.98 %, respectively. These observations indicate that A₂NaAlI₆(A = Rb, Cs) halide DPs are intriguing candidates for PSCs due to their superior stability and exceptional photovoltaic properties.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"299 ","pages":"Article 113738"},"PeriodicalIF":6.0,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An experimental performance analysis of canal-mounted photovoltaic systems regarding energy production and water conservation","authors":"Ali Canbaz ,&nbsp;Yakup Karakoyun ,&nbsp;Hasan Uzmus","doi":"10.1016/j.solener.2025.113749","DOIUrl":"10.1016/j.solener.2025.113749","url":null,"abstract":"<div><div>Traditional ground-mounted photovoltaic (PV) systems encounter considerable obstacles, including land scarcity and performance decline at elevated operating temperatures. Canal-mounted photovoltaic (CM-PV) systems have significant benefits by leveraging existing canal infrastructure, improving thermal efficiency, and mitigating water evaporation—an increasingly pressing concern in dry and water-scarce areas. Nonetheless, empirical investigations on CM-PV systems are limited in the literature, especially regarding practical application and operational constraints. This research seeks to assess the energy efficiency and water conservation capabilities of CM-PV systems in comparison to conventional ground-mounted PV panels under actual working settings inside a hot and arid area. Experiments were performed to assess panel surface temperatures, energy efficiency, and water evaporation at various tilt angles (8°, 23°, and 38°). CM-PV panels demonstrated surface temperatures that were up to 6.33 °C lower and, on average, 4.2 °C lower than ground-mounted panels, leading to enhanced energy efficiency. Shaded canals equipped with photovoltaic panels shown reduced evaporation rates relative to open canals; specifically, at an 8° tilt, water evaporation decreased from 10 to 6 L. Reduced tilt angles increased closeness to the water surface, hence enhancing cooling and performance. Although data illustrate the benefits of CM-PV systems in energy and water management, obstacles persist, such as long-term durability, integration into diverse canal geometries, and cost-effectiveness. This study offers substantial empirical data to address these deficiencies and supports the potential of CM-PV systems as a dual-benefit approach for sustainable energy and water conservation.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"299 ","pages":"Article 113749"},"PeriodicalIF":6.0,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Solar energy for greenhouse drying: Performance evaluation of parabolic trough solar collector with two-axis tracking system","authors":"Mehmet Das ,&nbsp;Oguzhan Pektezel ,&nbsp;Mithat Sımsek","doi":"10.1016/j.solener.2025.113716","DOIUrl":"10.1016/j.solener.2025.113716","url":null,"abstract":"<div><div>This study was conducted to develop a solution for the efficient and sustainable use of solar energy in food drying in response to the depletion of fossil fuels, environmental concerns, and increasing energy demand. The motivation is to improve energy efficiency and provide environmentally friendly alternatives in food drying applications. This study experimentally evaluated the performance of a greenhouse dryer equipped with a parabolic trough solar collector (PTSC) with an air-fluidized, dual-axis solar tracking system (STS). The experiments were conducted between June 12 and June 17, 2023, in Tokat, Turkey, located between 39°51′–40°55′ North latitudes and 35°27′–37°39′ East longitudes, between 10:00 a.m. and 5:00p.m. each day. In the apple drying experiments, solar radiation was continuously directed to the collector at an optimum angle with STS, and energy efficiency and exergy efficiency increased by 28.7 % and 36.2 %, respectively. Drying time decreased by 57.2 %, and the product surface temperature reached 76.1 °C. With the effect of STS, solar radiation on the system increased by an average of 18.8 %, and drying efficiency improved by 47.2 %. The study’s originality is using air-fluid in the tube system, which is equipped with a dual-axis, fully automatic solar tracking mechanism. In the literature, water-based and single-axis systems have generally been studied. This study introduces an innovation that enhances the efficiency and sustainability of solar energy usage in food drying. It offers a transformative approach to integrating energy systems within agricultural practices, paving the way for a more effective and environmentally friendly future in food drying.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"299 ","pages":"Article 113716"},"PeriodicalIF":6.0,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rational tailoring of electron-donating arms toward promising thia[5]helicene-based hole-transporters for stable and efficient perovskite solar cells","authors":"Lu Zhang ,&nbsp;Yang Li ,&nbsp;Xinru Zhang ,&nbsp;Ping-Ping Sun ,&nbsp;Xiaorui Zhu ,&nbsp;Yunhai Zhang ,&nbsp;Zhu-Zhu Sun","doi":"10.1016/j.solener.2025.113752","DOIUrl":"10.1016/j.solener.2025.113752","url":null,"abstract":"<div><div>Due to the unique π-curved molecular conformation, the helicenes exhibit a variety of favorable properties, such as multi-dimensional hole transport and good phase stability. In this work, five helicene type hole-transport materials (HTMs) are designed by using thia[5]helicene as π-linker, conjoined with different donors include methoxybiphenyl, phenyl-naphthylamine, fluorene, N-ethylcarbazole and dibenzothiophene to probe the effects of electron-donating arms. Compared to experimental reported T5H-OMeDPA, all tailored HTMs exhibit more stable HOMO levels. The matched energy levels mean that the advantageous charge transfer at the interface can be expected. Importantly, by employing the π-extended dibenzothiophene to decorate the electron-donating unis, the SM55 shows the highest hole mobility compared to the other HTMs. The influence of steric hindrance is overcome by the enhanced sulfur-sulfur interactions. The favorable solubility and hydrophobicity are also exhibited for new designed HTMs. Meanwhile, the interfacial simulations show that the adsorbed FAPbI₃/SM55 system exhibits more stable adsorption conformation and the greater charge transfer and work function at the interface compared to T5H-OMeDPA, which is potentially helpful for photogenerated electron-hole separation. This work not only offer the promising helicene-typed HTMs, but also present the beneficial insights for experimental synthesis.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"299 ","pages":"Article 113752"},"PeriodicalIF":6.0,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Innovative system for enhancing tomato drying performance using evacuated tube solar collectors, thermal storage materials, and reflectors","authors":"Abanob Joseph ,&nbsp;Sabbah Ataya ,&nbsp;M. Ismail ,&nbsp;Swellam W. Sharshir","doi":"10.1016/j.solener.2025.113745","DOIUrl":"10.1016/j.solener.2025.113745","url":null,"abstract":"<div><div>To overcome the limitations of conventional dryers, this work examines the performance of an evacuated tube solar air heater (ETSAH) integrated with an indirect solar drying system, analyzed across three different configurations: (1) conventional ETSAH, (2) reflector-integrated ETSAH, and (3) reflector-integrated ETSAH with latent thermal storage. Furthermore, data collected on product mass changes were analyzed to evaluate key performance indicators, including thermal and exergy efficiency, drying efficiency, and mass reduction trends across different system configurations. According to the field testing results, reflector integration was found to enhance radiation absorption, yielding an outlet heater temperature of 65.2 °C. Dryer efficiency improved from 41.31 % in conventional ETSAH drying to <em>48.63</em> % in reflector and thermal storage-integrated drying, demonstrating the positive impact of higher thermal performance on drying capacity. Moreover, the maximum drying rate reached 0.253 kg/h in reflector and thermal storage-integrated drying, compared to only 0.203 kg/h in conventional ETSAH drying at 13:00 h. Regarding the <em>moisture</em> ratio, the three cases achieved final <em>moisture</em> ratios of 0.232, 0.209, and 0.183, each corresponding to average water removal rates of 0.153, 0.158, and 0.163 kg/h, respectively. These results confirm that combining reflectors and thermal storage materials with ETSAH significantly enhances drying efficiency, rate, and consistency, making the system more suitable for practical and sustainable agricultural applications.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"299 ","pages":"Article 113745"},"PeriodicalIF":6.0,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improving the precision of DC arc detection in high absolute humidity environment","authors":"Xinran Li ,&nbsp;Xuxin Ge ,&nbsp;Ziyu Zhu ,&nbsp;Fan Ji ,&nbsp;Yu Wang ,&nbsp;Yaojie Sun","doi":"10.1016/j.solener.2025.113723","DOIUrl":"10.1016/j.solener.2025.113723","url":null,"abstract":"<div><div>Direct current (DC) arcs are among the primary causes of failures in DC systems, including photovoltaic and battery systems. DC arcs are difficult to detect because their noise characteristics are affected by discharge conditions, with humidity being a significant factor. However, most studies have been conducted under fixed humidity conditions. Thus, the mechanism by which humidity affects arc detection remains unclear. This uncertainty hampers reliable detection of DC arcs across a wide humidity range. This study provides a comprehensive investigation into the impact of absolute humidity on DC arc detection, covering arc noise behavior, feature extraction, and classification performance. The experiments reveal that the time-frequency distribution of arc noise consists of ascending and descending stages. Specifically, the amplitude of arc noise was found to be negatively correlated with absolute humidity, while the peak time was negatively correlated with both temperature and current. Furthermore, higher absolute humidity was found to lower the signal-to-noise ratio of arc features and increase misclassification risk, particularly during the noise descending stage. To address this, a concept of detection sweet zone was proposed to define a detection interval range under humid conditions. The sweet zone of a 9.8 A arc shortens from 2.49  s at 90 % relative humidity and 20 °C to 1.23  s at 80 % relative humidity and 45 °C. The detection failure rate increases proportionally as detection interval exceeds the sweet zone, ranging from 1.5 % to 60.1 %. Therefore, determining detection intervals based on the sweet zone can improve detection precision under high absolute humidity.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"299 ","pages":"Article 113723"},"PeriodicalIF":6.0,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A life-cycle economic comparison of distributed photovoltaic power stations coupled with integrated electrolysis systems: optimization of directly and indirectly coupled modes","authors":"Zunbo Wang ,&nbsp;Yong He ,&nbsp;Wanzhen Wang ,&nbsp;Zhongtao Liao ,&nbsp;Wubin Weng ,&nbsp;Zhihua Wang ,&nbsp;Shengtao Qian","doi":"10.1016/j.solener.2025.113747","DOIUrl":"10.1016/j.solener.2025.113747","url":null,"abstract":"<div><div>Integrating distributed photovoltaic (PV) systems for hydrogen production has gained an increasing research attention as a way to improve solar energy utilization and enhance energy storage. However, economic assessments of different technological routes for PV-powered electrolysis remain limited. This study fills this gap by evaluating the life cycle economic feasibility of distributed PV stations coupled with integrated electrolysis systems (IES). The main contribution of this work is the comprehensive analysis of both direct and indirect coupling of PV and electrolysis systems, providing new insights into the cost-effectiveness and long-term potential of solar-driven hydrogen production. For the direct coupling of PV power generation with proton exchange membrane (PEM) electrolyzers, MATLAB/Simulink is used for simulation experiments. For indirect coupling, experimental data from distributed PV power stations and PEM and alkaline (ALK) electrolyzers in practical application at the Yumen Oilfield are used. The results show that the Levelized Cost of Hydrogen (LCOH) for directly coupled PEM is € 2.93–2.99/kg, for indirectly coupled PEM, it is € 4.47–4.65/kg, and for indirectly coupled ALK, it is € 2.55–2.68/kg. These findings are significant for the economic analysis of PV panels directly coupled with PEM and distributed PV hydrogen production systems.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"299 ","pages":"Article 113747"},"PeriodicalIF":6.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on thermophysical properties of porous aluminosilicate ceramics/hitec melting salt composite phase change material: A thermal storage application","authors":"Haitao Zhang ,&nbsp;Zhiyuan Yan ,&nbsp;Hailong Kang ,&nbsp;Zhiqiang Zhang ,&nbsp;Feng Shao ,&nbsp;Shuide Liu ,&nbsp;Guoyou Bai ,&nbsp;Yunxu Guan ,&nbsp;Qirong Yang ,&nbsp;Zhaoying Li ,&nbsp;Yong Dong","doi":"10.1016/j.solener.2025.113742","DOIUrl":"10.1016/j.solener.2025.113742","url":null,"abstract":"<div><div>Thermal storage has begun to be utilized in the process of solar energy utilization. Given the inherent fluctuations and intermittency of solar energy, phase change thermal storage plays a crucial role in enhancing energy utilization efficiency and promoting energy conservation. A series of novel Hitec salt/porous aluminosilicate ceramic composite PCMs (CPCMs) were synthesized and characterized through a combination of molecular dynamics simulations and experimental studies. Computational models of porous aluminosilicate ceramics (ACs) with varying SiO₂:Al₂O₃ molar ratios were established to calculate the porosity, specific surface area, thermal conductivity, and specific heat capacity of the ceramic matrix. Experimentally, porous ACs were prepared using these same molar ratios by incorporating a pore-forming agent. Ceramic precursors were fabricated from kieselguhr, aluminum hydroxide, aluminum oxide, and soluble starch, followed by sintering at 1250 °C to produce porous ACs. The porosity was measured using the Archimedes displacement method, and the molten Hitec salt was subsequently adsorbed into the ceramic matrix via the melt infiltration method to form CPCMs. The performance characteristics of CPCMs, including specific heat capacity, phase change temperature, latent heat of fusion, thermal conductivity, decomposition point, and microstructure, were evaluated using differential scanning calorimetry, thermal conductivity analysis, thermogravimetric analysis, and scanning electron microscopy. When CPCMs containing 25 wt% soluble starch had an SiO₂:Al₂O₃ ratio of 1:2, their thermal conductivity was 2.11 W/(m·K), while the specific heat capacity (Cp) and latent heat of fusion were 1.25 J/(g·K) and 60.83 J/g, respectively. This study provides a theoretical foundation for selecting appropriate CPCMs in thermal storage systems.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"299 ","pages":"Article 113742"},"PeriodicalIF":6.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144513678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}