scholarly journals SOLAR DRYER PERFORMANCE STUDY OF SOME CROPS (MINT, OKRA AND GRAPES) I - ASSESSING THE DRYING RATES

2015 ◽  
Vol 32 (1) ◽  
pp. 205-222
Author(s):  
Mona M. A. Hassan
Keyword(s):  
Performance Study ◽  
Solar Dryer ◽  
Drying Rates

scholarly journals Performance study of hybrid solar dryer with auxiliary heater for seaweed drying

2019 ◽  
Vol 1295 ◽  
pp. 012002
Author(s):  
Suherman Suherman ◽  
Hafid Rizki ◽  
Nurfadilla Rauf ◽  
Evan Eduard Susanto
Keyword(s):  
Performance Study ◽  
Solar Dryer ◽  
Auxiliary Heater

Performance study of hybrid solar dryer for cassava starch

2020 ◽  
Author(s):  
Suherman Suherman ◽  
Evan Eduard Susanto ◽  
Asif Widodo Zardani ◽  
Nur Haniza Roviqoh Dewi
Keyword(s):  
Cassava Starch ◽  
Performance Study ◽  
Solar Dryer

scholarly journals An Experimental Study and Analysis on Solar Drying of Bitter Gourd Using an Evacuated Tube Air Collector in Thanjavur, Tamil Nadu, India

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
AR. Umayal Sundari ◽  
P. Neelamegam ◽  
C. V. Subramanian
Keyword(s):  
Moisture Content ◽  
Tamil Nadu ◽  
Research Work ◽  
Bitter Gourd ◽  
Sun Drying ◽  
Solar Dryer ◽  
Drying Rates ◽  
Evacuated Tube ◽  
Drying Chamber

The objective of this research work is to design and develop a forced convection solar dryer using evacuated tube air collector and study its performance on bitter gourd in Thanjavur District, Tamilnadu, India. The designed solar dryer consists of a drying chamber, evacuated tube air collector, a blower, and a chimney. Drying parameters, moisture ratio and drying rates, are calculated and their performance is compared with natural sun drying. The results of the present study show that the proposed solar dryer has greater efficiency, and the moisture content of bitter gourd is reduced from 91% to 6.25% in 6 hours as compared to 10 hours in natural sun drying. In this solar dryer, the products are uniformly dried, and the moisture content of the sample is controlled. It is found that the quality of the dried bitter gourd using solar dryer is higher than the natural sun-dried bitter gourd.

PERFORMANCE STUDY OF SOLAR DRYER FOR AGRICULTURAL AND MARINE PRODUCTS

2011 ◽  
Vol 10 (8) ◽  
pp. 1011-1013
Author(s):  
Angeles Lopez Aguera ◽  
Jasurjon S. Akhatov ◽  
Iago Rodriguez Cabo ◽  
Daniel Rey Rey ◽  
E. Virites Montes ◽  
...  
Keyword(s):  
Performance Study ◽  
Solar Dryer ◽  
Marine Products

scholarly journals Development a Solar Dryer for low income group Farmers for sub cooled region

2021 ◽  
Vol 2062 (1) ◽  
pp. 012026
Author(s):  
Ashutosh Ameta ◽  
Mohammad Inayat Pinjara ◽  
Alok Kumar Dudhera ◽  
Harveer Singh Pali
Keyword(s):  
Low Income ◽  
Large Scale ◽  
Income Group ◽  
Food Preservation ◽  
Maximum Temperature ◽  
Food And Agriculture ◽  
Solar Dryer ◽  
Sunshine Hours ◽  
Drying Rates ◽  
Experimental Trials

Abstract Solar dryer is a device that use solar energy to dry substances, especially food and agriculture product. Drying is one of the indispensable techniques for large-scale food preservation. There are already various types of solar dryer available but need a better performing solar dryer which can perform better in low sunshine hours and also in off sunshine hours. In present work combination of trapezoidal and tunnel type structured solar dryer developed for experimental trials. It showed better efficiency and effectiveness in compared to the existing solar dryers with respect to previous design available so far. After the experiments, it is found that maximum temperature rise was recorded 76°C however ambient temperature was 24 °C. At same time % reduction in weight was highly appreciable after three to four hour drying. Results of drying rates up to 50% after three hour drying. So present solar dryer is economical and potential solution to preserve the vegetables and crops to improve income of formers.

scholarly journals Solar drying of residue from Brazil nut processing

2021 ◽  
Vol 24 ◽  
Author(s):  
Ceila Juvino do Nascimento ◽  
Maria Helena da Silva Oliveira ◽  
Dyego da Costa Santos ◽  
Thalis Leandro Bezerra de Lima ◽  
Daniela Dantas de Farias Leite ◽  
...  
Keyword(s):  
Water Soluble ◽  
The Sun ◽  
Brazil Nut ◽  
Soluble Extract ◽  
Experimental Conditions ◽  
Expanded Polystyrene Foam ◽  
Solar Dryer ◽  
Direct Exposure ◽  
Drying Rates ◽  
Water Soluble Extract

Abstract Brazil nuts are often used for direct consumption or in the preparation process of water-soluble extract. After obtaining the water-soluble extract, a large amount of Brazil nut residues with good sensory characteristics are generated. Thus, this study aimed to dry Brazil nut processing residues in layers with different thicknesses in a direct solar dryer as well as by direct exposure to the sun, in order to fit different mathematical models to the experimental data of drying kinetics, and calculate the drying rates and effective diffusivity. The drying procedures began at 9 a.m. on a concrete base, for samples dried by direct exposure to the sun, and in a solar dryer constructed with expanded polystyrene foam zinc plated and a glass cover. The mass loss of the samples was monitored by weighing at regular times until the hygroscopic equilibrium was obtained. The direct solar dryer had temperatures about 80% higher than those recorded in the open environmental air temperature. Drying rates were higher in dehydrations performed in the solar dryer compared to the drying by exposure to the sun. The Midilli model was selected as the most adequate for predicting the drying of the samples under all experimental conditions, showing coefficients of determination above 0.99. The effective diffusion coefficients of moisture were higher in samples dehydrated in the solar dryer when compared to those dried by exposure to the sun. Regarding the research conducted under the experimental conditions of this study, the performance of the solar dryer to dry Brazil nut processing residues was satisfactory.

scholarly journals Performance study of a baffled solar dryer

AIMS Energy ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 1136-1146
Author(s):  
Cristiana Brasil Maia ◽  
◽  
Gisele Mol da Silva ◽  
Luiz Felippe Guardia Bianchi ◽  
André Guimarães Ferreira ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Solar Radiation ◽  
Moisture Content ◽  
Air Temperature ◽  
Solar Collector ◽  
Photovoltaic System ◽  
Performance Study ◽  
Electrical Heater ◽  
Solar Dryer ◽  
Time Required

<abstract> <p>This paper presents a hybrid solar dryer with baffles disposed of on the solar collector. When the levels of solar radiation are low, an electrical heater is used to increase the drying air temperature. A photovoltaic system feeds the electrical heater and the fans, and it is also used to preheat the drying air, increasing the temperature at the inlet of the solar collector. Experimental results of corn drying indicated that the baffles augmented the energy efficiency of the system (from 23.5 to 24.9%) and the temperature rise in the solar collector (from 13.5 to 20.2 ℃), reducing the time required for the corn to reach the final desired moisture content.</p> </abstract>

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