Thursday 30 May 2013

PARABOLIC CONCENTRATOR TYPE SOLAR COOKER

PARABOLIC CONCENTRATOR TYPE SOLAR COOKER

Abstract: The solar cooker = SC
Energy from the sun is really strong, renewable energy and solar energy,
Free. We can use it to make electricity, heat buildings and cooking. Cooking areas
Take up a lot of fossil fuels, such as natural gas and wood. People can not find enough gas
And / or wood for cooking, so using SC is a good idea. In this work, we design,
Build and study of a parabolic solar concentrator type solar cooker. Various design
SC conducted a study in order to optimize its performance. They are represented by different
Geometry, and where the cooking pan. Parabolic characteristic
Concentrating solar cooker research and experimental results are given. Keywords:
Parabolic solar cookers, cooking, performance ..

I) Introduction:
This paper attempts to trace the path of how the evolution of the solar concentrator, and is being made
Proposed vision is to use these solar concentrator tribal peoples. Since consumption of fossil
Fuel needy non-conventional energy, such as solar, wind and other new energy sources
Energy, geothermal energy, tidal energy, these solar formed a promising future energy
Sources. Solar energy can be used by using different types of methods, such as optical, thermal
And photosynthesis. By using different types of collectors, we can use the solar light and heat. In
In this paper, we try to make use of solar cookers cooking purposes. Purpose is to make solar cooking
Comfortable as possible, it should be similar to the traditional cooking system. Using parabolic
Concentrating solar cooker allows all operations, such as boiling, stewing, steaming, baking and
Fried capacity is relatively high. Box-type solar cooker will be able to cook only and steaming.
So keep watching the video tribal people and their energy needs cooking diet
Purpose, parabolic concentrating solar cooker production.

II) Target OFTHE Study:
A) the construction and production of parabolic concentrator type solar cooker.
b) to measure the temperature, structure of the focus parabolic concentrating solar cooker.
c) To study the loss during cooking.
d) measuring the time required for the different cooking food material. (DAL rice) III)

TECHNICALSPECIFICATIONS OFCONSTRUCTED parabolic CONCENTRATOR:
1) aperture diameter 2.3 m (length wise), 2.3 (width wise)
2) reflective surface area of ​​12.65 square meters
3) Lighting area 8.54 m2
4) No mirror 44
5) Size of each mirror surface 13 cm (lower). 135 cm (length) 16.5 cm in (on)
6) Material specular anodized aluminum construction
7) focal length of the concentrator 40 cm
8) reflected the focal spot size of 30 cm
Bottom of the container
(Diameter)
9) Type tracking Manuals
10) 78% specular reflection surface
11) type and size of vessel pressure cooker

IV) EXPERIMENTALSET:
Parabolic concentrator solar cooker performance is quite sensitive to the design parameters
And operating conditions, therefore for a cooker and cooking of the thermal properties
On a clear sunny day following testing capabilities.

1.Stagnation temperature test has two objects placed water and oil heating tests
Liters of water and oil at room temperature, separate cooking utensils. Blackened and not through the use of black
Appliances, stagnation temperature test conducted water and oil.

2.Cooking Test - This is to assess the time it takes to cook a certain amount of food, such as rice,
Pigeonpea and so the amount of solar cookers cooked individually and not using blackened blackened
Tableware.

Solar cooker solar cooker efficiency calculation by using standard formula.To, 3.Efficiency
Suryamapi standardized measure of sunlight to be used for temperature measurement, chrome aluminum
Thermocouple used.

V) RESULTAND discussion:
1. Stagnation temperature test:
Appliances containing two liters of water to keep the focus of the parabolic solar cooker. Appliance
Aluminum pressure cooker and painted black paint.The focused highest temperature recorded
CC is 98 O. average ambient temperature of 35 O seen in Figure 1 the average solar radiation of 825
W/M2. Cooking Test:

Transgenic rice containing 200 ml of water and 400 appliances maintain the focus on solar trough
Cooker. Appliances are aluminum pressure cooker. Focus on the highest temperature recorded was 96
CC O, average ambient temperature of 35 Macao cooking time is 13 minutes when not blackened
Equipment use and 11 vminutes darkening appliances used, see Figure 3. Average solar
2
Insolation of 835 W / m.

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