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AIP Conference Proceedings [Author(s) SolarPACES 2017: International Conference on Concentrating Solar Power and Chemical Energy Systems - Santiago, Chile (26–29 September 2017)] - Pre-heating boiler feedwater for expanded cork agglomerate production using a parabolic trough system
摘要： The production of expanded cork agglomerate involves significant heat demand, requiring superheated steam at temperatures ranging from 300oC to 370oC. The energy required to this process can be suitably provided by concentrating solar thermal collectors. This work considers the thermal energy needs of a real plant, presenting the technical and economical analysis performed for a solar heat for industrial process system using parabolic trough collectors to preheat the feedwater used by the boiler providing steam to the expanded cork agglomerate production process.
关键词： feedwater pre-heating,expanded cork agglomerate,solar thermal,parabolic trough collectors,industrial process heat
更新于2025-09-10 09:29:36
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The use of solar energy for residential buildings in the capital city
摘要： Taking into account thе conditions оf sharply continental сlimаtе of Russia the implеmеntаtion оf the prоjеct of hеаting for an apartment house can be structured on the basis of solar vacuum collectors. A diagram of the оpеration of the vacuum solar collectors can be considered for hеаting and hot wаtеr. The cаlculаtiоns of еffеctive angle of solar cоllеctоrs also vary for stаtiоnаry use in winter and summer. Consumption of centralized heat in the spring and autumn is reduced by 30 % due to the use of solar collectors. In summer the main problem of аpplicаtion of solar collectors is to protect the tubes from overheating. In winter, the use of solar heating is able to provide not more than 25 % of the needs regarding the utility and the results of experimental exploitation. It is shown that the main problem of using solar energy in Russia relies not in technology, but in the legislative field. The use of a vacuum manifold in Russia will be widely implemented in areas with a cold climate and in the modern houses after solving the issues of legislative support from the state and municipal authorities.
关键词： hot water,vacuum solar collectors,residential buildings,legislative support,solar energy,heating
更新于2025-09-10 09:29:36
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Reference Module in Earth Systems and Environmental Sciences || Solar Energy in Buildings☆
摘要： Solar Energy can be utilized in many ways (e.g., photovoltaics, solar–thermal–electrical systems, solar ponds, and biomass conversion), but in the current chapter only applications associated with covering the heating and cooling requirements of buildings will be discussed. These applications require low or medium -temperature heat and include water heating, either for domestic hot water systems or swimming pools, space heating, and possibly also space cooling.
关键词： Net Zero Energy Buildings,Economics,Passive Systems,Design Methods,Thermal Behavior of Buildings,Buildings,Solar Energy,Solar Collectors,Space Heating and Cooling Systems,Hot Water Systems
更新于2025-09-09 09:28:46
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Exergy Analysis of Two Kinds of Solar-Driven Cogeneration Systems in Lhasa, Tibet, China
摘要： In this study, an exergy analysis of two kinds of solar-driven cogeneration systems consisting of solar collectors and an organic Rankine cycle (ORC) is presented for series mode and parallel mode. Three kinds of solar collectors are considered: ?at-plate collectors (FPC), evacuated tube collectors (ETC), and parabolic trough collectors (PTC). This study mainly compares the exergy output of the two kinds of solar cogeneration systems under di?erent temperatures of the return heating water and di?erent inlet temperatures of the solar collectors. This study shows that, from the perspective of Wnet or E?, the parallel mode is superior to the series mode. From the perspective of Ez, the parallel mode is superior to the series mode when the solar collector is FPC; however, the series mode is superior to the parallel mode when the solar collector is PTC. When the solar collector is ETC, the result depends on the temperature of the return heating water. When the temperature of the return heating water is low (below 46°C), the series mode is better, and when the temperature of the return heating water is high (above 46°C), the parallel mode is better.
关键词： solar collectors,series mode,solar-driven cogeneration systems,parallel mode,exergy analysis,organic Rankine cycle
更新于2025-09-08 09:59:03