Tuesday, February 9, 2010

Design Considerations

The flexible solar pannel we saw last time, though I forget its name is similar to the following

SUNLINQ Foldable Solar Chargers 25W
Specifications:
  • Operating Voltage: 12V (25 W)
  • Voc: 16.5v
  • Operating Current: 1500 MA
  • Dimensions (Folded/Unfolded): 11 x 8.5 x .7 in / 41 x 22 in
  • Weight: 1.7 lbs
#1.
The dimension is approximately 1.04 by 0.56 meters. If we need a 150W generator the smallest
dimension possible is 6 pieces, in 2 by 3 arrangement = 2*1.04 by 3*0.56=2.08 by 1.68
including the inter panel gap inefficiency, this will have an area of
approx. 2.10*1.70=3.57 meter sq.
#2.
If we are going to use it for secondary services, like electrifying water purifiers, we need additional panels.
Typically Water purifying systems need 15 to 45W depending on their capacity,
I have seen a sample water purifier with the following specifications
Specification
Power Consumption (Overall) (Watts)> 36/48

Type of Water Purifier > Direct Flow
Purification Stages >5
Flow Rate (Litres/Minute) >0.416
The whole spec can be found at
http://compareindia.in.com/specification/water-purifiers/hitech-ro-25-of/42991
http://compareindia.in.com/media/product/2008/oct/hi-tech_waterpuri_25-of_b_350x263.jpg
Please visit the following solar purifier system, it gives us some technical insight.
http://www.aqua-sun-intl.com/products/PWP-C5/PWP-C5.pdf
My conclusion is that if we are going to add the socalled SECONDARY services, like charging mobile, water purifying .... though they can be used alternatively, the design of the generator should be dimensioned to consider these technical specs.

Please take a look at the following orientations and dimensions.



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