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<strong>DEMO</strong>NOSTRATIONS AND TECHNOLOGY EVALUATION<br />
Renewable energy demonstrations<br />
SPRERI demonstrated IDBG cook stove,<br />
box type solar cooker and solar lanterns<br />
in a RE awareness programme organized<br />
by B & B Polytechnic College, Vallabh<br />
Vidyanagar at Thamana village under<br />
Umreth taluka district Anand on 19 th<br />
April, 2011. Large number of villagers,<br />
including women participated in the<br />
demonstration. The methods of use and<br />
benefits of the RE gadgets were explained<br />
to the participants.<br />
Demonstration of solar cooker at Thamana<br />
village (Anand)<br />
Large number of villagers participated<br />
in demonstrations of improved biomass<br />
cook stove, solar lanterns and box type<br />
solar cookers held as per the details<br />
given below. Salient features, method of<br />
operation and merits of the gadgets were<br />
RE Gadgets being demonstrated at Simal<br />
Faliya village<br />
explained to the participants.<br />
Village Simal Faliya, Chhotaudepur<br />
taluka, district Vadodara in association<br />
with a local NGO, Don Basco Tech,<br />
Lok Seva Kendra<br />
Villages Dageria (Zalod taluka) and<br />
Chedia (Limkheda taluka) district Dahod<br />
Forced circulation solar cabinet dryer<br />
Packed bed type solar air heaters based<br />
solar drying systems were installed<br />
at M/s Vitagreen Products Pvt. Ltd.,<br />
Rajkot (50 m²) and Dr. Panjabrao<br />
Deshmukh Krishi Vidyapeeth, Krish<br />
Nagar, Akola (72 m²). During the<br />
year, both the systems were provided<br />
with necessary instrumentation for<br />
collecting performance data under no<br />
load and load conditions. It was found<br />
that air temperature gain during no<br />
load condition varied <strong>from</strong> 20 to 41 °C<br />
at PDKV, Akola. During the tests, solar<br />
radiation on the plane of solar collector<br />
surface varied <strong>from</strong> 200 to 560 W/m 2<br />
and ambient temperature varied <strong>from</strong><br />
31 to 36 °C. The system was handed<br />
over to the University.<br />
The continuous dryer with the conveyor<br />
belt system designed and developed by<br />
the M/s Vitagreen Pvt. Ltd., was found<br />
not in working condition. As such no<br />
load tests were performed on 3 rd and<br />
4 th June 2011. The result showed that<br />
maximum air temperature gain was<br />
31.1 °C and temperature gain during no<br />
load condition varied <strong>from</strong> 8.0 to 31.1<br />
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