Experimental Investigation of a Parabolic Solar Trough Collector with Titanium-Coated Receiver to Heat Water in a Tank for Domestic Uses

IF 1.204 Q3 Energy Applied Solar Energy Pub Date : 2024-08-21 DOI:10.3103/S0003701X23601904
Shivji Kumar,  Achinta Sarkar
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Abstract

This study aims to examine the performance of a parabolic solar trough collector (PSTC) for the efficient use of green renewable solar energy. The study investigates the energy taken by water (ETW), receiver efficiency (RE), cumulative heat gain (CHG) by water in the tank, receiver terminal temperature difference (RTTD), and percentage of electric energy saving (PEES) at various mass flow rates (MFR) with and without coating of the receiver. The study found that the PSTC performed best with a coating (WC) of the receiver at a mass flow rate of 18.72 kg/h compared to the case without coating (WOC). At the mass flow rate of 18.72 kg/h, significant increases in ETW, RE, CHG of water in the tank, and RTTD were observed for the case WC compared to WOC, at 25.88, 25.87, 23.96, and 20.56%, respectively. Meanwhile, the maximum PEES of 66.8% was observed at the MFR of 18.72 kg/h for the case WC. There is a 23.45% reduction in the annual cost per kWh of energy used for the case with coating compared to the case without coating. In addition, a substantial amount of CO2, equivalent to 3,121.03 kg, can be offset by using the PSTC to heat water over its entire useful life. Pure titanium powder was used as the coating material.

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带钛涂层接收器的抛物面太阳能槽式集热器用于加热水箱中的生活用水的实验研究
摘要 本研究旨在考察抛物面太阳能槽式集热器(PSTC)的性能,以高效利用绿色可再生能源。研究调查了在不同质量流量(MFR)下,有涂层和无涂层的槽式太阳能集热器的水耗能(ETW)、集热器效率(RE)、槽内水的累积得热量(CHG)、集热器终端温差(RTTD)和电能节省百分比(PEES)。研究发现,在质量流量为 18.72 千克/小时时,接收器有涂层(WC)的 PSTC 与无涂层(WOC)的情况相比,性能最佳。在 18.72 kg/h 的质量流量下,与 WOC 相比,WC 情况下的 ETW、RE、水箱中水的 CHG 和 RTTD 显著增加,分别为 25.88%、25.87%、23.96% 和 20.56%。同时,在 MFR 为 18.72 kg/h 时,观察到 WC 的 PEES 最大值为 66.8%。与无涂层的情况相比,有涂层的情况下每千瓦时能源的年使用成本降低了 23.45%。此外,通过使用 PSTC 在整个使用寿命期间加热水,可以抵消大量的二氧化碳,相当于 3121.03 千克。涂层材料为纯钛粉。
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来源期刊
Applied Solar Energy
Applied Solar Energy Energy-Renewable Energy, Sustainability and the Environment
CiteScore
2.50
自引率
0.00%
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0
期刊介绍: Applied Solar Energy  is an international peer reviewed journal covers various topics of research and development studies on solar energy conversion and use: photovoltaics, thermophotovoltaics, water heaters, passive solar heating systems, drying of agricultural production, water desalination, solar radiation condensers, operation of Big Solar Oven, combined use of solar energy and traditional energy sources, new semiconductors for solar cells and thermophotovoltaic system photocells, engines for autonomous solar stations.
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