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University of Agricultural Sciences, Bengaluru

University of Agricultural Sciences Bangalore, a premier institution of agricultural education and research in the country, began as a small agricultural research farm in 1899 on 30 acres of land donated by Her Excellency Maharani Kempa Nanjammanni Vani Vilasa Sannidhiyavaru, the Regent of Mysore and appointed Dr. Lehmann, German Scientist to initiate research on soil crop response with a Laboratory in the Directorate of Agriculture. Later under the initiative of the Dewan of Mysore Sir M. Vishweshwaraiah, the Mysore Agriculture Residential School was established in 1913 at Hebbal which offered Licentiate in Agriculture and later offered a diploma programme in agriculture during 1920. The School was upgraded to Agriculture Collegein 1946 which offered four year degree programs in Agriculture. The Government of Mysore headed by Sri. S. Nijalingappa, the then Chief Minister, established the University of Agricultural Sciences on the pattern of Land Grant College system of USA and the University of Agricultural Sciences Act No. 22 was passed in Legislative Assembly in 1963. Dr. Zakir Hussain, the Vice President of India inaugurated the University on 21st August 1964.

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20201
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Subject: Processing and Food Engineering × Author: Bhuva Sachin Sanatkumar × Start date: 1961 × Type: Thesis ×
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    ThesisItemOpen Access
    DEVELOPMENT OF SOLAR-CUM-BIOMASS ENERGY HYBRID DRYER FOR SIMAROUBA LEAVES
    (University of Agricultural Sciences GKVK, Bangalore, 2020-11-11) Bhuva Sachin Sanatkumar; DARSHAN, M. B.
    Solar-cum-biomass energy hybrid dryer, an integration of both solar and biomass energy dryer was developed for bulk drying of simarouba leaves especially in nonelectrified areas. The major components of the dryer are drying chamber, solar energy collection chamber and heat exchanging unit. Glazing materials (Acrylic sheet, Ethylene vinyl alcohol film, Fibre glass, Polyethylene film, Polycarbonate sheet and Polyvinyl chloride sheet) for effective harness of solar energy was selected based on an effective temperature profile inside the solar energy collection chamber. Polycarbonate sheet was found to be best due to its high temperature profile, average maximum temperature of 43.1 oC and average daily temperature of 38.4 oC. Drying of simarouba leaves using hybrid dryer was carried out and compared with sun drying, shade drying, tray drying, solar drying and biomass drying methods. Leaf moisture content was reduced approximately from 64% to 10% in all drying methods. Drying period in hybrid drying (20 h) was found to be shorter as compared to sun (32 h), shade (56 h) and solar drying (34 h). Fuel requirement for combustion of briquette for energy source was found 33% lower for hybrid dryer as compared to biomass dryer. Total cost of hybrid dryer was lower as compared to tray dryer of the same capacity. Simarouba leaves dried under hybrid dryer retained about 74.65% and 76.84% of total phenols and total flavonoids, respectively as compared to fresh leaves. Therefore, solar-cum-biomass energy hybrid dryer would be cost effective and well suitable to dry simarouba leaves in non-electrified areas.