配备不同相变材料的太阳能干燥器的计算流体动力学分析

IF 0.9 Q4 THERMODYNAMICS

International Journal of Thermodynamics Pub Date : 2023-11-20 DOI:10.5541/ijot.1324341

Chetan Mamulkar, Sanjay Ikhar, V. Katekar

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引用次数: 0

摘要

相变材料（PCM）是一种有机（或无机）化学物质，当它改变物理状态时，可以潜伏形式储存和释放热能。这项研究旨在了解相变材料如何影响太阳能干燥器的热效率。在性能分析中，使用了三种 PCM：石蜡、月桂酸和棕榈酸。作为干燥材料，使用了 5 毫米厚的马铃薯片。根据计算结果，对于 2 千克的干燥质量，石蜡、月桂酸和棕榈酸干燥机的总输入热能分别约为 17.36 兆焦、18.46 兆焦和 17.76 兆焦。与传统干燥机相比，当使用石蜡、月桂酸和棕榈酸时，干燥机的整体效率分别提高了约 87%、40.2% 和 12.4%。通过比较模拟和预测结果，可以得出结论：石蜡是太阳能干燥器中性能最佳的 PCM 储能材料。

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Computational Fluid Dynamic Analysis of Solar Dryer Equipped with Different Phase Change Materials

A phase change material (PCM) is an organic (or inorganic) chemical that may store and release thermal energy in latent form as it changes physical states. This investigation aims to see how phase transition materials influence the thermal efficiency of the solar dryer. For the performance analysis, three PCMs were used: paraffin wax, lauric acid, and palmitic acid. As drying material, 5 mm thick potato slices were employed. According to the computational results, the total input thermal energy for the dryer for paraffin wax, lauric acid, and palmitic acid was about 17.36 MJ, 18.46 MJ, and 17.76 MJ, respectively, for 2 kg drying mass. When paraffin wax, lauric acid, and palmitic acid were utilized, the overall efficiency of the dryer increased by about 87%, 40.2%, and 12.4%, respectively, compared to the conventional dryer. By comparing the results of simulations and predictions, it is concluded that paraffin wax is the best-performing PCM for solar dryers as the energy storage material.

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来源期刊

International Journal of Thermodynamics THERMODYNAMICS-

CiteScore

1.50

自引率

12.50%

发文量

期刊介绍： The purpose and scope of the International Journal of Thermodynamics is · to provide a forum for the publication of original theoretical and applied work in the field of thermodynamics as it relates to systems, states, processes, and both non-equilibrium and equilibrium phenomena at all temporal and spatial scales. · to provide a multidisciplinary and international platform for the dissemination to academia and industry of both scientific and engineering contributions, which touch upon a broad class of disciplines that are foundationally linked to thermodynamics and the methods and analyses derived there from. · to assess how both the first and particularly the second laws of thermodynamics touch upon these disciplines. · to highlight innovative & pioneer research in the field of thermodynamics in the following subjects (but not limited to the following, novel research in new areas are strongly suggested): o Entropy in thermodynamics and information theory. o Thermodynamics in process intensification. o Biothermodynamics (topics such as self-organization far from equilibrium etc.) o Thermodynamics of nonadditive systems. o Nonequilibrium thermal complex systems. o Sustainable design and thermodynamics. o Engineering thermodynamics. o Energy.