Enhanced Thermal Performance of Alkali-Treated Bamboo, Coir, and Date Palm Fiber Composites for Solar Distillation Applications

IF 0.4 4区物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY Russian Physics Journal Pub Date : 2024-06-03 DOI:10.1007/s11182-024-03191-4

P. Yadav, O. Prakash

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Abstract

This study investigates the thermal conductivity and moisture absorption characteristics of bamboo, coir, and date palm fiber composites, specifically examining their suitability for use in solar distillation applications. Four composite samples comprising alkali-treated bamboo and coir fiber (sample 1), untreated bamboo and coir fiber (sample 2), treated coir and date palm fiber (sample 3), and untreated coir and date palm fiber (sample 4) have been experimentally analyzed. Samples 1 and 3 showed 17.6 and 16.6% lower thermal conductivities and 45.8 and 44.2% lower moisture absorptions than untreated samples 2 and 4. Alkali-treated fibers had decreased lignin and hemicellulose and more cellulose, supporting the observed benefits after chemical analysis. Post-alkali scanning electron microscopy showed improved fiber surface morphology, highlighting cellulose energy-saving significance. The results indicate that these composites, due to their improved thermal insulation characteristics, provide a sustainable choice for integration into solar distillation systems.

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提高经碱液处理的竹子、椰子纤维和椰枣纤维复合材料在太阳能蒸馏应用中的热性能

本研究调查了竹纤维、棕纤维和枣椰纤维复合材料的导热性和吸湿性，特别是研究了它们在太阳能蒸馏应用中的适用性。实验分析了四种复合材料样品，包括碱处理过的竹纤维和椰壳纤维（样品 1）、未处理过的竹纤维和椰壳纤维（样品 2）、处理过的椰壳纤维和枣椰纤维（样品 3）以及未处理过的椰壳纤维和枣椰纤维（样品 4）。与未经处理的样本 2 和样本 4 相比，样本 1 和样本 3 的导热率分别降低了 17.6% 和 16.6%，吸湿率分别降低了 45.8% 和 44.2%。碱处理后的纤维木质素和半纤维素减少，纤维素增加，支持了化学分析后观察到的优点。碱处理后的扫描电子显微镜显示纤维表面形态有所改善，凸显了纤维素的节能意义。研究结果表明，这些复合材料具有更好的隔热性能，是集成到太阳能蒸馏系统中的可持续选择。

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来源期刊

Russian Physics Journal PHYSICS, MULTIDISCIPLINARY-

CiteScore

1.00

自引率

50.00%

发文量

208

审稿时长

3-6 weeks

期刊介绍： Russian Physics Journal covers the broad spectrum of specialized research in applied physics, with emphasis on work with practical applications in solid-state physics, optics, and magnetism. Particularly interesting results are reported in connection with: electroluminescence and crystal phospors; semiconductors; phase transformations in solids; superconductivity; properties of thin films; and magnetomechanical phenomena.