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Manjula, B.
- Drying Characteristics of Byadagi Chilli (capsicum Annuum Linn.) Using Solar Tunnel Dryer
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Authors
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1 Department of Food and Agricultural Process Engineering, Agricultural Engineering College and Research Institute (T.N.A.U.) CoimbatoreT.N., IN
2 Department of Agricultural Processing and Food Engineering, College of Agricultural Engineering, University of Agricultural Sciences, Raichur Karnataka, IN
1 Department of Food and Agricultural Process Engineering, Agricultural Engineering College and Research Institute (T.N.A.U.) CoimbatoreT.N., IN
2 Department of Agricultural Processing and Food Engineering, College of Agricultural Engineering, University of Agricultural Sciences, Raichur Karnataka, IN
Source
International Journal of Agricultural Engineering, Vol 6, No 1 (2013), Pagination: 111–115Abstract
Freshly harvested Byadagi chilli (Capsicum annuum Linn.) fruits were treated with dipsol, potassium nitrate and citric acid and dried in solar tunnel dryer (STD) and open yard sun drying (OYSD). A comparative study was conducted to evaluate two drying methods with respect to temperature and time combinations. It took 39 h to bring down the moisture content of chillies from 339.14% d.b. to 10.00% d.b. in STD as against 57 h under OYSD. The per cent time saved for drying chilli by using improved method of drying (STD) was found to be 31.57% in comparison with open yard sun drying. Drying took place in the falling rate period and the Newton model was found to be the best fit to describe the drying behavior of Byadagi chilli.Keywords
Byadagi Chilli, Drying Model, Moisture Content
- Review on Drying of Agricultural Produce Using Solar Assisted Heat Pump Drying
Abstract Views :169 |
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Authors
Affiliations
1 Department of Processing and Food Engineering, College of Agricultural Engineering (A.N.G.R.A.U.), Madakasira, Anantapuram (A.P.), IN
1 Department of Processing and Food Engineering, College of Agricultural Engineering (A.N.G.R.A.U.), Madakasira, Anantapuram (A.P.), IN
Source
International Journal of Agricultural Engineering, Vol 11, No 2 (2018), Pagination: 409-420Abstract
Sun drying is an oldest and traditional method used to dry and preserve agricultural products in tropical and sub-tropical countries. But the process is disadvantageous like labour intensive, time consuming and requires a large area for spreading the produce out to dry, loss of produce due to birds and animals, deterioration in harvested crops due to decomposition, insect attacks and fungi, etc. Also the required quality standards are not fulfilled in open sun drying. Solar drying technology offers an alternative which can process the vegetables and fruits in clean, hygienic and sanitary conditions to national and international standards with zero energy costs. It saves energy, time, occupies less area and improves product quality. The solar-assisted dryers are conventional dryers to which supplementary equipment is added to enable a significant proportion of the thermal energy required for drying to be replaced by solar energy. Heat pump dryers have been known to be energy efficient when used in conjunction with drying operations. The heat pump recirculation mode and solar mode can be used for drying the agricultural produce and allows the drying process to be continues in different weather conditions. In these dryers, a planned and generally optimized drying process can be achieved to obtain superior product quality and good economic performance.Keywords
Sun Drying, Time Consuming, Product Quality, Solar Assisted Dryers, Heat Pump, Energy Efficient.References
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