Comparative Analysis and Performance Improvement of Modified Forced Convection Solar Dryer with Recirculation of Air

2022 8th International Conference on Smart Structures and Systems (ICSSS) Pub Date : 2022-04-21 DOI:10.1109/ICSSS54381.2022.9782214

K. Thilak, P. Chandrasekar, P. R, Linda Cecilia Tracy Maule, Nohit Venkata Seetha Sai Balaji Avvaru, N. Franklin

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Abstract

The paper presents a study using solar dryer induced with the forced draught design in combination with closed loop circulation of air and also development of lens and analyzing the performance of the dryer for parching edible fruit in varying climatic conditions of Coimbatore, India. The process comprises of components viz., a chamber for drying, solar air heater in flat plate design with the circulation tubes and a programmable microcontroller. The air flow rate for the process has been determined as 0.2058 kg/s. The usage of solar dryer for drying the edible fruit is found to be effective since it reduces the moisture content from 79% according to wet basis and the finalized wet content in the edible fruit is only around 9.65% in a time period of 24 hours. The efficiency of the dryer is to be averaged around 22%. The moisture specification rate is concluded to be about 0.87 kg/kWh. Establishing a model of modified solar dryer is the main objective of the work.

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改进型空气再循环强制对流太阳能干燥机的比较分析及性能改进

本文介绍了在印度哥印拜陀不同的气候条件下，采用强制通风设计与空气闭环循环相结合的太阳能干燥机的研究和透镜的研制，并分析了干燥可食用水果的性能。该工艺包括干燥室、带有循环管的平板太阳能空气加热器和可编程微控制器等组件。该工艺的空气流速已确定为0.2058 kg/s。使用太阳能干燥机对食用水果进行干燥是有效的，它使食用水果的水分含量从湿基的79%降低，在24小时的时间内，食用水果的最终湿含量仅为9.65%左右。烘干机的效率平均在22%左右。水分规格率约为0.87 kg/kWh。建立改进型太阳能干燥机的模型是本工作的主要目的。

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2022 8th International Conference on Smart Structures and Systems (ICSSS)

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