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b)	Solar Parabolic Cooker / Solar Panel Cooker

Description

These are usually concave disks that focus the light onto the bottom of a pot. The advantage is that foods cook about as fast as on a conventional stove. The disadvantage is that they are complicated to make, they must be focused often to follow the sun, and they can cause burns and eye injury if not used correctly. Some of these concerns have recently been reduced.

Major Components

The major components of the cooker will be as below :

Reflecting Bow : It is a parabolic dish made of reflecting sheets supported on suitable rings for holding them in a fixed position. The sheets are joined together in such a way that they automatically form the parabolic shape. The structure and frame of the bowl are made strong so that the reflectors do not get deformed while turning it in various directions.

Reflector Stand : The reflector stand is made of mild steel having powder coating for better durability. The stand is designed in such a way that the reflector could rotate 360 degree around the horizontal axis passing through the focus and the centre of gravity. It should also be able to rotate around the vertical axis so as to adjust the cooker in the direction of the sun.

Features & Benefits

	Can be used for frying and grill cooking.
	Cooking platform remains automatically within the focal area – Safe and convenient for usage
	Tracking by shadow indicator – No need to look into the reflectors for tracking towards sun.
	Reflector adopts short focal distances and long tracking intervals – No need to track the cooker during cooking time.
	Reflector area is located within the reflector – Reaches 150°C very fast ensuring quick cooking
	Adjustable Unique Pot holder – Different Vessel sizes could be used
	No need to wait for hours after keeping utensils in sunshine
	Use of pressure cooker up to 12 liters capacity cooks, rice, dal and other food within half an hour in good sunshine
	Also useful for sterilization
	User friendly, easy to move and clean
	Safe to operate and durable
	Effectively useful from one hour after sunrise to one hour before sunset
	Uses highly reflective aluminium surface to increase efficiency
	Useful for urban, rural as well as tribal areas for use in households, community kitchen, hostels, hotels, remote camps and the like.

Technical Specifications

Material of reflectors	: Aluminium sheets of thickness 0.4–0.5 mm
Reflectivity	: above 95 %
Size of focal spot	: 100 mm approx.
Focal length	: 280 mm
Dimension & Shape	: 1.4 meter diameter parabolic
Surface area of reflector	: 2.20 sq m
Aperture area of reflector	: 1.54 sq m
Tracking of the sun	: Manual
Cooking Vessel	: 12 lts. Capacity – 280 mm diameter vessel
Power availability at cooking pot	: About 0.6 kW (with over 600 W / sq m) Direct 750 W / sq m total solar isolation available on reflector
Thermal efficiency	: Over 40%
Life	: More than 15 years (1) Metallic structure - It can with stand high wind speeds (grouting or putting load on the base frame is possible) (2) Reflecting mirrors - Minimum 5 years
12 lts. Capacity – 280 mm diameter vessel 1.4 m Diameter, 1.95 m Height adjustable High reflective aluminum (98%) Fiberglass Reflector body, Powder coated steel frame

Two Box Packaging – One Reflector and other steel members