Thematische Bibliographien / Asphalt solar collector

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Auswahl der wissenschaftlichen Literatur zum Thema „Asphalt solar collector“

Autor: Grafiati

Veröffentlicht am 28. September 2024

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Zeitschriftenartikel zum Thema "Asphalt solar collector"

Wu, Shao Peng, Bo Li, Hong Wang und Jian Qiu. „Numerical Simulation of Temperature Distribution in Conductive Asphalt Solar Collector due to Pavement Material Parameters“. Materials Science Forum 575-578 (April 2008): 1314–19. http://dx.doi.org/10.4028/www.scientific.net/msf.575-578.1314.

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Asphalt pavement serving as solar collector has been developed for the heating and cooling of adjacent buildings as well as to keep the pavement ice-free directly. Material parameters such as thermal conductivity and heat capacity are some of the critical parameters related to the efficiency of the asphalt collector. Graphite powders were utilized as thermal conductive fillers to make asphalt collector conductive so as to improve the efficiency of the asphalt collector. The material parameters change with the addition of graphite consequently. In order to access the solar energy absorbability of conductive asphalt collector, it is necessary to predict the temperature distribution within the asphalt layers. A transient, two-dimensional finite element model is developed to predict temperature distributions in conductive asphalt solar collector due to material parameters. The ability of accurately predict asphalt pavement temperature at different depths will greatly help pavement engineers in determining the solar energy potential of conductive asphalt collector. The results from the prediction model show that the surface temperature of pavement decreases slightly with addition of graphite. The differential maximum asphalt temperature variation at a depth of 10cm is significantly more than that at the surface. Higher temperature and lower temperature gradient can also be observed at the depth of 10cm because the heat conduction is accelerated by the addition of graphite.

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Basheer Sheeba, Jinshah, und Ajith Krishnan Rohini. „Structural and Thermal Analysis of Asphalt Solar Collector Using Finite Element Method“. Journal of Energy 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/602087.

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The collection of solar energy using asphalt pavements has got a wide importance in the present energy scenario. Asphalt pavements subjected to solar radiation can reach temperature up to 70°C because of their excellent heat absorbing property. Many working parameters, such as pipe diameter, pipe spacing, pipe depth, pipe arrangement, and flow rate, influence the performance of asphalt solar collector. Existing literature on thermal energy extraction from asphalt pavements is based on the small scale laboratory samples and numerical simulations. In order to design an efficient asphalt solar collector there should be a payoff between the thermal and structural stability of the pavement, so that maximum heat can be absorbed without structural damage due to external load condition. This paper presents a combined thermal and structural analysis of asphalt solar collector using finite element method. Analysis is carried out in different models so as to obtain optimum pipe spacing, pipe diameter, depth, and pipe arrangement under the specified condition.

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Beddu, Salmia, Mushtaq Ahmad, Nur Liyana Mohd Kamal, Daud Mohamad, Zarina Itam, Yee Hooi Min und Warid Wazien Ahmad Zailani. „A State-of-the-Art Review of Hydronic Asphalt Solar Collector Technology for Solar Energy Harvesting on Road Pavement“. MATEC Web of Conferences 400 (2024): 03007. http://dx.doi.org/10.1051/matecconf/202440003007.

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Nature inspires innovative renewable energy solutions by advancing our road pavements, as the sun is the only infinite and accessible source of clean and green energy on our planet. In addition to the various solar energy production methods, a new paradigm for utilizing asphalt pavement as a solar collector is being developed for self-powered energy harvesting. Due to direct solar radiation, flexible paved surfaces exposed to direct sunlight can heat up to 70°C in the summer. The heat is then dissipated into the environment, causing the urban heat island effect, and accelerating thermal oxidation of asphalt pavement. This can lead to structural failure and reduced pavement performance. This study aims to present a state-of-the-art review of hydronic asphalt solar collectors (HASCs) and propose the best model to enhance the performance of asphalt solar collectors. The findings of the study concluded that asphalt has the potential to absorb solar energy and store heat energy. This can be achieved by assembling and modifying conventional asphalt structures into modern asphalt solar collector designs that consist of pipe arrangements below the paved surface filled with liquid flowing through the pavement surface. The study found that a significant limitation of previous research was that it focused on optimizing the temperature profile at various depths but did not focus on structural improvements to reduce failure and increase the performance of asphalt solar collectors. Therefore, this review study proposed a new technique of using conductive and waste materials to enhance the performance of asphalt solar collectors.

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Chen, Ming Yu, Shao Peng Wu, Ji Zhe Zhang und Pan Pan. „Design and Performance of an Asphalt Pavement Snow Melting System“. Key Engineering Materials 467-469 (Februar 2011): 1550–55. http://dx.doi.org/10.4028/www.scientific.net/kem.467-469.1550.

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Asphalt pavement can be used in solar energy harnessing, by means of solar collector developed in heating and cooling the adjacent buildings, as well as keeping the pavement ice-free directly. In the light of the actual situation of preparation and formation of a larger asphalt concrete slab, an experimental method and evaluation system for asphalt pavement snow melting was designed and constructed. The feasibility of snow melting using asphalt solar collector was verified, and the effect of the heat exchanger on the temperature distribution was quantitatively tested The results indicated that although the entire snowmelt time is longer than expected, it is acceptable for us to use asphalt solar collector for snow melting, especially, low temperature water about 25°C is used for snow melting. Besides, the melting process of ice and snow generally includes three phases: the starting period, the linear period and the accelerated period. The snow melting system is controlled to maintain the asphalt pavement surface temperature of 3 to 5°C which is sufficient to prevent freezing of the road.

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Abbaa, Firas A., und Mohammed H. Alhamdo. „Thermal Performance Enhancement of Asphalt Solar Collector by Using Extended Surfaces“. Progress in Solar Energy and Engineering Systems 5, Nr. 1 (31.12.2021): 17–25. http://dx.doi.org/10.18280/psees.050104.

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The Urban Heat Island (UHI) effect occurs when the temperature of the asphalt pavement surface exceeds 70°C during the summer. Rutting is a significant temperature-related problem that occurs when the temperature rises too high on asphalt surfaces. Additionally, this phenomenon increases the amount of energy required to cool buildings adjacent to pavements and degrades air quality. The Asphalt Solar Collector (ASC) was examined in this work by inserting tubes into the pavement's construction and circulating working fluid within it to capture thermal energy generated by asphalt pavement. A low-carbon steel-alloy cheap waste materials have been investigated as an extended surface with HMA. The effect of various extended surfaces attached to the embedded tubes on the thermal performance of ASC has been studied to determine whether it satisfies specified aforementioned demands. The performance of several ASC models with bare, continuous finned, and mesh grid serpentine embedded tubes was investigated with same Conductive Hot Mixture Asphalt (C-HMA) by using a numerical 3-D model developed by COMSOL Multiphysics Software. when the Reynolds Number is increased, it is found that ASC efficiency increases from 66.74% for bare serpentine tubes to approximately 75.488% and 69.4% for continuous finned and mesh grid serpentine embedded tubes, respectively. A maximum value of about 398.53 W can be gained (from a total of 850 W/m2 incident solar radiation) by utilizing an extended surface. Additionally, the surface temperature of HMA decreases significantly from 52.67 to 46.07℃. For all models under investigation, it is clear that the optimum average Reynolds Number is about 600. It is found that the continuous fins model can capture more solar radiation than the mesh grid model by about 8.77%.

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Wu, Di, Gangqiang Kong, Hanlong Liu, Xi Zhu und Hefu Pu. „Performance of a bridge deck as solar collector in a thermal energy storage system“. E3S Web of Conferences 205 (2020): 07009. http://dx.doi.org/10.1051/e3sconf/202020507009.

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Solar energy can be stored in subsurface and extracted to melt snow and deice in winter. In summer, the bridge deck heat element in a bridge deicing system could serve as a solar energy collector without additional cost. Numerical models were developed in this study to investigate the performance of a bridge deck solar collector. The effects of radiation intensity and wind speed on the solar energy collection efficiency of a bridge deck solar energy collector were discussed and analyzed. The results show that the temperature of the slab was decreased during the solar collection process, and the solar energy collection efficiency of the bridge deck solar collector was about 26~47%. The collection efficiency of solar energy at a given wind speed was increased with the decreasing of the radiation energy, and this effect was more pronounced when the wind speed was higher. The solar energy collection was beneficial to the durability of the top asphalt layer as well as the structural response of the bridge because the magnitude and gradient of the slab temperature were much lower when the bridge deck served as a solar energy collector.

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Pasetto, Marco, Andrea Baliello, Giovanni Giacomello und Emiliano Pasquini. „Mechanical Feasibility of Asphalt Materials for Pavement Solar Collectors: Small-Scale Laboratory Characterization“. Applied Sciences 13, Nr. 1 (27.12.2022): 358. http://dx.doi.org/10.3390/app13010358.

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Rutting (i.e., depressions along the wheel path) is a distress exhibited by flexible asphalt pavements at high in-service temperatures negatively affecting ride comfort and safety. In this regard, the fine asphalt mortar (i.e., bitumen filler and fine sand) plays a key role in the rutting potential of the asphalt mixtures. Given this background, this manuscript presents a small-scale laboratory experimentation aimed at assessing the rutting-related performance of a plain bitumen combined with natural (limestone) or manufactured (steel slag) fine aggregates (size up to 0.18 mm) through advanced experimental and theoretical approaches. Specific rheological tests through dynamic shear were carried out to achieve this goal. The investigated asphalt blends came from a wider research project focused on the implementation of a pavement solar collector (a road system to harvest the solar energy irradiating the pavement). In particular, the present paper aimed at verifying the mechanical suitability of the produced asphalt mixes with respect to permanent deformation resistance. Such a small-scale investigation mainly showed that the previously selected constituent materials did not imply criticisms in terms of rutting response.

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Abbas, Firas A., und Mohammed H. Alhamdo. „Experimental and numerical analysis of an asphalt solar collector with a conductive asphalt mixture“. Energy Reports 11 (Juni 2024): 327–41. http://dx.doi.org/10.1016/j.egyr.2023.11.065.

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Pasetto, Marco, Andrea Baliello, Giovanni Giacomello und Emiliano Pasquini. „Rutting Behavior of Asphalt Surface Layers Designed for Solar Harvesting Systems“. Materials 16, Nr. 1 (28.12.2022): 277. http://dx.doi.org/10.3390/ma16010277.

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Solar harvesting systems applied to asphalt roads consist of pipes or coils installed a few centimeters below the asphalt pavement surface. They work thanks to a circulating fluid able to collect the heat coming from solar irradiation of the pavement surface and convert it into thermal gradients that can be used for electric energy supply. Specific attention must be paid to the design of the asphalt mixtures comprising the system. In this sense, the high in-service temperature rutting potential is one of the main issues to be assessed in such applications since the thermal optimization of asphalt mixes could lead to excessively deformable materials. The present study is a part of a wider research area aimed at developing an efficient asphalt solar collector. Here, a laboratory mixture-scale investigation is proposed to verify the anti-rutting potential of specific asphalt layers that were initially designed based on thermal properties only. Repeated load axial and wheel tracking tests are carried out on limestone- and steel slag-based bituminous mixtures. Overall, the tested layers were not fully able to satisfy the permanent deformation acceptance criteria; in this regard, possible improvements in terms of mix constituents and properties are ultimately addressed.

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Tang, N., S. P. Wu, M. Y. Chen, P. Pan und C. J. Sun. „Effect mechanism of mixing on improving conductivity of asphalt solar collector“. International Journal of Heat and Mass Transfer 75 (August 2014): 650–55. http://dx.doi.org/10.1016/j.ijheatmasstransfer.2014.04.014.

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Dissertationen zum Thema "Asphalt solar collector"

Söderlund, Monika. „Water film solar collectors : Solar heat from asphalt and roof surfaces“. Licentiate thesis, Luleå tekniska universitet, 1987. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-25785.

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Sevi, Fébron Lionel Prince. „Étude numérique et expérimentale d'un système de valorisation de l'énergie solaire thermique des routes pour les besoins des bâtiments“. Electronic Thesis or Diss., Chambéry, 2024. http://www.theses.fr/2024CHAMA005.

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La réduction des émissions de gaz à effet de serre provenant des énergies fossiles combinée à l'augmentation de la demande mondiale en énergie représente un défi majeur pour l'humanité. Nous ne pourrons le résoudre sans un recours massif aux énergies renouvelables. L'énergie solaire est l'une des formes renouvelables les plus abondantes et disponibles. Diverses techniques sont utilisées pour exploiter cette énergie, telles que les panneaux solaires photovoltaïques pour la production d'électricité et les capteurs solaires thermiques pour la production de chaleur. Récemment, une autre approche a émergé, celle des routes solaires, offrant à la fois des infrastructures de transport et des capacités de captation d'énergie solaire. Dans ce contexte, cette thèse propose l'étude et le développement d'un système couplant énergétiquement une chaussée à un bâtiment via un stockage thermique. Le concept repose sur la récupération de chaleur de la chaussée pendant les périodes chaudes, via un fluide caloporteur circulant dans un revêtement de chaussée drainant placé sous la couche de roulement. Cette chaleur est ensuite stockée au sein d'un stockage thermique composé de sable saturé en eau en sous-sol du bâtiment afin d'être mobilisée ultérieurement. Le chauffage et la production d'eau chaude sanitaire mettent en œuvre une pompe à chaleur. Un modèle thermique et énergétique a été développé pour l'ensemble du système. Les prédictions du modèle sont comparées aux résultats expérimentaux obtenus à l'aide d'un démonstrateur spécifiquement développé pour les besoins de l'étude. Les simulations annuelles montrent qu'il est possible de chauffer efficacement des maisons individuelles ou des petits collectifs répondants aux réglementations énergétiques actuelles en valorisant l'énergie thermique des routes avec un coefficient de performance moyen de la pompe à chaleur voisin de 6.5. Une étude de sensibilité du système a montré que la superficie du capteur, le volume du stockage et le lieu d'implantation ont une influence sur les performances du système
Reducing greenhouse gas emissions from fossil fuels combined with increasing global energy demand represents a major challenge for humanity. We will not be able to solve it without massive recourse to renewable energies. Solar energy is one of the most abundant and available forms of renewable energy. Various techniques are used to harness this energy, such as photovoltaic solar panels for electricity production and solar thermal collectors for heat production. Recently, another approach has emerged, that of asphalt solar collector, offering both transport infrastructure and solar energy capture capacities. In this context, this thesis proposes the study and development of a system energetically coupling a roadway to a building via thermal storage. The concept is based on recovering heat from the roadway during hot periods, via a heat transfer fluid circulating in a draining road surface placed under the wearing course. This heat is then stored in a thermal storage composed of sand saturated with water in the basement of the building in order to be mobilized later. Heating and domestic hot water production use a heat pump. A thermal and energy model has been developed for the entire system. The model predictions are compared to experimental results obtained using a demonstrator specifically developed for the needs of the study. Annual simulations show that it is possible to efficiently heat individual houses or small collectives meeting current energy regulations by using the thermal energy of the roads with an average coefficient of performance of the heat pump close to 6.5. A sensitivity study of the system showed that the surface area of the sensor, the storage volume and the location have an influence on the performance of the system

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Buchteile zum Thema "Asphalt solar collector"

Pasetto, Marco, Andrea Baliello, Giovanni Giacomello und Emiliano Pasquini. „Modeling the Interface Shear Strength of Asphalt Pavements Containing a Solar Collector“. In Lecture Notes in Civil Engineering, 188–97. Cham: Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-63588-5_19.

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Konferenzberichte zum Thema "Asphalt solar collector"

Medas, Matthew, Rajib Mallick und Sankha Bhowmick. „Thermodynamic Analysis of Asphalt Solar Collector (ASC)“. In ASME 2013 Heat Transfer Summer Conference collocated with the ASME 2013 7th International Conference on Energy Sustainability and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/ht2013-17323.

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Hot mix asphalt (HMA) pavements are a potential source of extractable energy. Asphalt solar collectors (ASCs) have been designed and developed in the past as a means of extracting that energy. However, due to the variety of inefficiencies the potential for power generation has yet to be realized. This paper theoretically seeks to establish a better understanding of the performance and thermodynamic potential of the ASC. The ASC is compared to a solar water heater (SWH) through the use of (and modification to) the Hottel-Whillier-Bliss equation, a standard equation for the analysis of the SWH. Pipe spacing (W) plays a more significant role in affecting shape factor (S), Resistance Factor (FRes) and and the thermal and overall efficiency of the ASC. It was established that minimizing pipe spacing or addition of a spreader layer (SN values in the range of 1–5) helped improve the thermal and overall efficiencies. The efficiency of ASCs would be in the 1–5% range, but the use of conductive spreaders can help increase it to 10%. Through this comparative analysis, several design changes can be suggested in key areas to optimize the ASC for the maximization of efficiency.

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Abbas, Firas A., und Mohammed H. Alhamdo. „Thermal performance enhancement of a conductive asphalt solar collector“. In OIL AND GAS ENGINEERING (OGE-2022). AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0140183.

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Huang, Yong, Qing Gao, Yan Liu und Y. Y. Yan. „Thermal Absorption on Solar Energy Collection in Solid Structure“. In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-40043.

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The application of seasonal solar energy usually needs a convenient thermal collection system attached to the engineering. The study of solar energy collection in solid structure was to explore available methods and assess to the possibility of renewable energy generation being exploited within the highway network. The solid structure, like road, building wall and envelop as solar collector has been being considered to be an effective way using renewable energy. This paper focused on the characteristics of temperature in four structures, such as asphalt, red brick, composite cement and concrete road slab under the solar radiation. Furthermore, the collecting heat based on a hydronic system was investigated experimentally. As to four structure slabs, their temperature differences of absorbing solar radiation varies greatly. The asphalt slab gets the highest temperature and the weakest reflection among them. Comparing others, the asphalt slab is higher by 8.1%, 14.9% and 16.4% respectively than brick, composite cement and concrete. The reflection intensity growth ratio was defined and it can denote the growth potential for absorbing radiation from the solid slab surface. From experiments, it is clear that a suitable selection of road materials can produce a great effect to improve thermal absorption, conduction and penetration in the solid slab.

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Gehlin, Signhild, Diana Salciarini, Taha Ghalandar, Olof Andersson und Bijan Adl-Zarrabi. „IEA ES Task 38: Ground source de-icing and snow melting systems for infrastructure“. In International Ground Source Heat Pump Association. International Ground Source Heat Pump Association, 2024. http://dx.doi.org/10.22488/okstate.24.000023.

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Thermal de-icing and snow melting systems offer alternatives to mechanical and chemical methods for clearing snow and ice from roads, bridge decks, ramps, and other transport infrastructure. Snow melting and de-icing systems with hydronic heated pavement (HHP) are utilized in various countries for infrastructure and other applications, often employing district heating return flow, electric heating, or gas boilers as heat sources. Alternatively, the ground can serve as a heat source for HHP systems, with or without the aid of heat pumps. These systems may also utilize the pavement as a solar heat collector in the summer, thereby cooling the road surface and prolonging the lifespan of asphalt roads by preventing rutting. In 2021, the International Energy Agency (IEA) initiated the international collaboration project Task 38 - Ground Source De-Icing and Snow Melting Systems for Infrastructure. Sweden, Turkey, Italy, Germany, France, and Belgium are part of this collaboration project. This paper provides an overview of the work within Task 38 and the current state-of-the-art of ground source de-icing and snow melting systems for infrastructure.

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Colon, Carlos J., und Tim Merrigan. „Roof Integrated Solar Absorber: The Measured Performance of “Invisible” Solar Collectors“. In ASME 2001 Solar Engineering: International Solar Energy Conference (FORUM 2001: Solar Energy — The Power to Choose). American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/sed2001-120.

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Abstract The Florida Solar Energy Center (FSEC), with the support of the National Renewable Energy Laboratory (NREL), has investigated the thermal performance of solar absorbers which are an integral yet indistinguishable part of a building’s roof. The first roof-integrated solar absorber (RISA) system was retrofitted into FSEC’S Flexible Roof Facility in Cocoa, Florida in September 1998. This “proof-of-concept” system uses the asphalt shingle roof surface and the plywood decking under the shingles as an unglazed solar absorber. The absorbed solar heat is then transferred to water that is circulated from a storage tank through polymer tubing attached to the underside of the roof decking. Data collected on this direct 3.9 m2 (42 ft2) solar system for a period of 12 months indicates that it was able to provide an average of 3.4 kWh per day of hot water energy to the storage tank under a 242 liters (64 gal) per day load. The RISA system’s average annual solar conversion efficiency was also determined to be 8 percent, with daily efficiencies reaching a maximum of 13 percent. In addition, a thermal performance equation has been determined to characterize the Phase 1 RISA system’s year-long efficiency under various ambient temperature, insolation, and wind speed conditions. As a follow-on to the proof-of-concept phase, two prototypes of approximately 4.5 m2 (48 ft2) surface area were constructed and submitted for FSEC thermal performance testing. These Phase 2 RISA prototypes differ in both roof construction and the position of the polymer tubing. One prototype is similar to the “proof-of-concept” RISA system as it employs an asphalt shingle roof surface and has the tubing mounted on the underside of the plywood decking. The second RISA prototype uses metal roofing panels over a plywood substrate and places the polymer tubing between the plywood decking and the metal roofing. Both prototypes were tested according to ASHRAE Standard 93 for determining the thermal performance of solar collectors. From performance data measured both outdoors and indoors using a solar Simulator, FR(ταe)’s were determined to be approximately 18% and 33% for the asphalt shingle and metal roof RISA prototypes, respectively. In addition, the coefficients of linear and second-order efficiency equations were also determined at various wind speeds. Finally, an FSEC thermal performance rating was calculated at the low and intermediate temperature levels. In summary, this paper is a first look at the thermal performance results for these “invisible” solar absorbers that use the actual roof surface of a building for solar heat collection.

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Liu, Chunyu, Chunyao Qing, Zhengzhong Wang, Linchao Gao, Shuncai Zai und Shengyong Liu. „Experimental and numerical study of parabolic trough solar collectors for heating tanked asphalt“. In 9th International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), herausgegeben von Jinghong Zhou und Ishak Bin Aris. SPIE, 2024. http://dx.doi.org/10.1117/12.3016016.

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