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IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering Pub Date : 2025-03-12 DOI:10.1016/j.csite.2025.106018

Habib Ben Bacha , Abanob Joseph , A.S. Abdullah , Swellam W. Sharshir

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引用次数: 0

摘要

太阳能干燥系统具有很高的能效，通过集成蓄热材料来稳定间歇性的太阳辐射输入，可以提高太阳能干燥系统的性能。为此，本文尝试对三种不同类型的太阳能干燥器进行评估：基于抽真空管空气太阳能加热器的间接太阳能干燥器、集成了潜热蓄热的太阳能干燥器以及结合了潜热蓄热和花岗岩片的太阳能干燥器。研究旨在发现这些变化对干燥速率、热效率和系统总体性能的影响。结果表明，案例 1 的平均除湿率为 0.072 kg/h，最终质量比为 0.62，干燥效率为 9.59 %，总效率为 4.66 %。情况 2 采用潜热储存，除湿率为 0.091 kg/h，质量比为 0.54，干燥效率为 11.27 %，总效率为 5.89 %。相比之下，使用潜热储存和花岗岩碎块的情况 3 性能最高，除湿率为 0.101 kg/h，质量比为 0.49，干燥效率为 13.67 %，总效率为 6.39 %。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Innovative experimental investigation of a solar dryer with an evacuated tube solar air heater and various thermal energy storage techniques

Solar drying systems are energy-efficient, and their performance can be improved with integrated thermal storage materials to stabilize the intermittent radiation input from the sun. To that effect, this paper attempts to make an appraisal of three different types of solar dryers: an evacuated tube air solar heater-based indirect solar dryer, a solar dryer integrated with latent thermal storage, and a solar dryer coupled with latent heat thermal storage and granite pieces. It aims at finding the impact of those changes on drying rates, thermal efficiency, and general system performance. The results reveal that Case 1 achieved an average moisture removal rate of 0.072 kg/h, a final mass ratio of 0.62, a drying efficiency of 9.59 %, and an overall efficiency of 4.66 %. Case 2, with latent heat storage, followed by a moisture removal rate of 0.091 kg/h, a mass ratio of 0.54, a drying efficiency of 11.27 %, and an overall efficiency of 5.89 %. In comparison, Case 3, using latent heat storage combined with granite pieces achieved the highest performance, with a moisture removal rate of 0.101 kg/h, a mass ratio of 0.49, a drying efficiency of 13.67 %, and an overall efficiency of 6.39 %.

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来源期刊

Case Studies in Thermal Engineering Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

8.60

自引率

11.80%

发文量

812

审稿时长

76 days

期刊介绍： Case Studies in Thermal Engineering provides a forum for the rapid publication of short, structured Case Studies in Thermal Engineering and related Short Communications. It provides an essential compendium of case studies for researchers and practitioners in the field of thermal engineering and others who are interested in aspects of thermal engineering cases that could affect other engineering processes. The journal not only publishes new and novel case studies, but also provides a forum for the publication of high quality descriptions of classic thermal engineering problems. The scope of the journal includes case studies of thermal engineering problems in components, devices and systems using existing experimental and numerical techniques in the areas of mechanical, aerospace, chemical, medical, thermal management for electronics, heat exchangers, regeneration, solar thermal energy, thermal storage, building energy conservation, and power generation. Case studies of thermal problems in other areas will also be considered.