[2, 3] Storing solar energy in chemical bonds makes the utilization of solar energy less affected by its discontinuity and instability, which can also match well with existing energy systems. [ 4, 5 ] Solar energy can also be the driving force for environmental remediations, such as water treatment, air purification and disinfection, removing ...
The present work focuses on the techno-economic assessment and multi-objective genetic algorithm optimization of small-scale (40 kWth input), solar Organic Rankine Cycle (ORC) systems driven by medium-to-high temperature (up to 210 °C) parabolic dish (PDC) and trough (PTC) collectors. The ORCs are designed to maximize …
[1] Kalogirou SA 2002 Parabolic trough collectors for industrial process heat in Cyprus Energy 27 813-30 Crossref Google Scholar [2] Lauterbach C., Schmitt B and Vajen K. 2014 System analysis of a low-temperature solar process heat system Sol Energy 101 117-30 Crossref Google Scholar [3] IEA-ETSAP, IRENA 2015 Solar heat for …
Based on the development status of medium and low temperature solar thermal utilization systems, this paper first introduces the application and performance …
The aim of this review work is to identify the trend on solar thermal energy applications to various process industries with various solar thermal systems available in …
Non-concentrating collectors such as flat plate and evacuated tube collectors are the most matured solar systems suitable for low-temperature applications (Ramaiah and Shekar, 2018), while...
Medium temperature solar thermal applications have received remarkable interest in the recent years in both residential and industrial sectors. Solar concentrating …
Different types of solar collectors are employed for collecting solar energy. Experimental works related to varying the parameters such as working medium, environment, size are taken in account ...
Solar concentrating solar thermal collectors are promising technologies for various applications which demand medium- and high-temperature levels. The objective of this …
Solar collectors can be bundled taking into consideration different operating temperatures: high temperature (≥1000 °C), intermediate temperature (~300 …
Solar energy utilization falls onto two broad categories. They are solar thermal energy and solar photovoltaic energy. ... medium and high temperature collectors. The flat-plate collector is a well-known kind of solar collector. ... with focus on individual thermochemical processes that aid biomass conversion to valuable products …
Correspondingly, a number of companies are advertising products for harnessing solar energy, in particular to produce thermal energy. Even large companies that tra- ... Low and medium temperature collectors are made of flat plates, with a black background and covered with glass to create greenhouse effect. The fluid to
Since the last decades, solar energy has been used worldwide to overcome foreign dependency on crude oil and to control the pollution due to a limited source of non-renewable energy. Evacuated tube solar collectors are the most suitable solar technology for producing useful heat in both low and medium temperature levels. …
The primary purpose of solar hot air collectors is to heat air that is used in ventilation or air-tempering systems. By design, these are very simple devices, usually consisting only of a light frame, an absorber, glazing and sometimes a ventilator for propelling the air through the collector.Since no fluid is flowing through them, they do not need to be water-proof and …
In another study, Mahon et al. [22] combined an empirical EFPC model with a thermochemical energy storage system for continuous thermal energy supply throughout the year through a numerical simulation model, which proved the feasibility of this system for medium and low temperature solar thermal utilization.
In this work, heat transfer in solar thermal devices, viz., flat plate collector (FPC) (air and water), evacuated tube collector (ETC ), solar concentrating collectors, …
Solar energy increases its popularity in many fields, from buildings, food productions to power plants and other industries, due to the clean and renewable properties. To eliminate its intermittence feature, thermal energy storage is vital for efficient and stable operation of solar energy utilization systems. It is an effective way of decoupling the …
@article{Gao2020ExperimentalAN, title={Experimental and numerical analysis of an efficiently optimized evacuated flat plate solar collector under medium temperature}, author={Datong Gao and Guang-tao Gao and Jingyu Cao and Shuai Zhong and Xiao Ren and Yousef N. Dabwan and Mao-Bin Hu and Dongsheng Jiao and Trevor …
Due to the versatile applications of solar heat as shown in Table 2, researchers are working on developing novel technologies for capturing, storing solar heat at different temperatures.Solar thermal collectors like a flat plate, evacuated or parabolic troughs can capture solar energy under clear sunlight and that can be used for different …
RESULTS Figure 3 shows the theoretical performance curves of both collectors• The equations for the shown curves are: r / = 0.55 - 4.87(AT/I) (15) for the water collector, and for the fuel oil collector it is: q = 0.44 - 3.95(AT/I) (16) As shown, the efficiency of the water solar collector is higher than that of the fuel oil collector by ...
Solar energy increases its popularity in many fields, from buildings, food productions to power plants and other industries, due to the clean and renewable properties.
Solar thermal energy (STE) is a form of energy and a technology for harnessing solar energy to generate thermal energy for use in industry, and in the residential and commercial sectors. Solar thermal collectors are classified by the United States Energy Information Administration as low-, medium-, or high-temperature collectors.
Solar water heating storage system stores thermal energy collected by either flat plate solar collector or evacuated tube solar collector in the form of the enhanced sensible heat of the water. The efficient utilization of sensible heat storage materials in diverse solar energy applications depends upon the proper design of the TES.
1. Introduction. The world population will exceed 9 billion by 2050, which would imply an increase in food production of about 70% [1], with the consequent increase in the energy demand [2].Energy is a fundamental input for the advancement, modernization, and economic evolution of the industrial sector of any nation [3], [4].. The industrial sector …
1 Introduction. Photovoltaic thermal (PVT) collectors and more specifically PVT-based heating solutions are with 13% in 2022 a fast-growing innovative technology in the heating and cooling sector right now. [] The variation of technical system solutions covers a wide range of product designs.
On the other hand, the intermittent and inconsistent nature of the solar energy with the significant seasonal variations in the intensity has urged the research and development of concentrating solar systems with advanced tracking devices to maximize the amount of solar energy produced and improve the overall efficiency [] this article, …
Medium temperature solar collectors represent an interesting solution to cover specific demands. According to the definition proposed within Task 49 [2], medium temperature solar thermal collectors refer to collectors whose power output exceeds 300 W/m2 (referred to …
Based on the above analysis, this article innovatively combines the molten salt energy storage system with STPV devices to construct a novel molten salt energy storage-STPV integrated system, as shown in Fig. 1, so as to realize the continuous and efficient utilization of solar energy the front part of the system, solar radiation is …
Concentration solar collectors: they use concentration methods with optical elements (e.g. lenses or mirrors). These devices of more complex design can capture and concentrate solar radiation, raising the temperature of the heat transfer fluid above 80 °C. They are applied in the field of medium and high temperature solar thermal energy.
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