Performance Evaluation of Solar Tunnel Dryer for Drying of Garlic.

Arjoo Arjoo,Yadvika Yadvika,Y.K Yadaadav

doi:10.12944/carj.5.2.09

Abstract

This paper presents dying efficiency and performance of the solar tunnel dryer for drying of garlic. The dryer is a tunnel like semi-cylindrical in shape, poly house made up of UV-stabilized polyethylene sheet. The capacity is large enough that it can be used to dry 400 kg of garlic under controlled environmental conditions. The temperature inside the dryer was always higher than the ambient and the variation varied from 8-30 ºC. Initial moisture content of garlic was reduced from 66 % (w.b.) to about 9 % (w.b.) in 9 days which is considered to be a safe level. During the drying process the average thermal efficiency of the drier was estimated to be about 13.45 %. Drying time was considerably reduced with the use of a solar tunnel drier and pressing of the sample. Also, the final dried garlic was found to be good in terms of quality and sensory evaluation shows that it is highly acceptable.

Highlights

India is one of the largest producers of spices in the world
The dried product is free from any dust particles and highly acceptable by consumers[5,6].Other advantages of solar tunnel dryers are substantial reduction of drying time and physical quality standards are maintained solar tunnel dryers are easy to operate and maintain[7].This paper presents results of performance of the solar tunnel dryer for drying of garlic
Load Test of Solar Tunnel Dryer For Garlic Drying Garlic is a traditional crop used as spices in India

Summary

Introduction

India is one of the largest producers of spices in the world. Garlic (Allium sativum) is used as a spice throughout India. These kind of dryers uses only solar energy and does not require any other source of energy temperature inside the dryer is more than the atmosphere.solar tunnel dryer is an alternative for rural people to reduce the storage losses by drying their produce in a controlled and better environment. The dried product is free from any dust particles and highly acceptable by consumers[5,6].Other advantages of solar tunnel dryers are substantial reduction of drying time and physical quality standards are maintained solar tunnel dryers are easy to operate and maintain[7].This paper presents results of performance of the solar tunnel dryer for drying of garlic.

Results

Conclusion