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Energy and exergy analyses of fabricated solar drying system with smooth and rough surfaces at different conditions: A case study

机译：不同条件下光滑粗糙表面的制造太阳能干燥系统的能量和暴风分析：案例研究

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摘要

For this experimental work, the solar dryer system has been fabricated. Various experiments have been performed to evaluate the performance of the fabricated dryer system. Energy and exergy concepts have been used for the assessment. And comparative analyses have also been done with smooth and rough surfaces: Grade 150 and Grade 300. This experimental work has been concluded as the maximum collector (i.e., 74°C) and cabinet temperatures (i.e., 66°C) are attained at 13:00 p.m. with Grade 300 surface. Maximum moisture loss (i.e., 35 g) and percentage moisture loss (i.e., 7.53%) are recorded at 13:00 p.m. again with a rough surface. Minimum exergy destruction rate (i.e., 0.294 W) but minimum exergy efficiency (i.e., 20.82%) are found at 17:00 p.m. with a black painted surface, which is not an acceptable condition. Maximum energy efficiency (i.e., 35.98%) and heat removal factor (i.e., 0.56) are obtained at 13:00 p.m. with a rough surface. The best performance from the fabricated solar system is received between 12:00 and 14:00 p.m. This study recommends rough surfaces and 12:00-13:00 p.m. timings for the solar drying system as the performance of the system is better in terms of energy-exergy.
机译：对于这种实验工作，已经制造了太阳能干燥机系统。已经进行了各种实验以评估制造的干燥系统的性能。能源和暴风概念已被用于评估。还采用了光滑粗糙的表面进行了比较分析：150级和300级。这一实验工作已经得出结论，因为最大收集器（即74°C）和机柜温度（即66°C）达到13 ：00 PM. 300级表面。最高水分损失（即35g）和百分比水分损失（即7.53％）在下午13:00记录。再次用粗糙的表面。最低漏洞破坏率（即0.294次），但在下午17:00发现最低的效率（即20.82％）。用黑色涂漆的表面，这不是一种可接受的条件。在下午13:00获得最大能量效率（即35.98％）和散热因子（即，0.56）。粗糙的表面。在下午12:00至14:00之间接收来自制造的太阳系的最佳性能。本研究推荐粗糙的表面和12：00-13：00下午12：00-13：00。太阳能干燥系统的定时作为系统性能的能量优势更好。

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