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Monday 6 May 2013

WEEK 1 (review the previous planner)


In this new semester, second phase of final year project, i starting with reconstruct the planner. I need to change the objective.

- To cooling the solar panel in order to get temperature below 25°c
- To control or prevent overheating solar panel.
- To produce the low cost of production for electricity 


Solar cells are sensitive to temperature. Increases in temperature reduce the band gap of a semiconductor, thereby effecting most of the semiconductor material parameters. The temperature at and below than 25°c is suitable for solar panel. The decrease in the band gap of a semiconductor with increasing temperature can be viewed as increasing the energy of the electrons in the material. Lower energy is therefore needed to break the bond. In the bond model of a semiconductor band gap, reduction in the bond energy also reduces the band gap. Therefore increasing the temperature reduces the band gap. Other than that, increasing the temperature, will make the efficiency more than 1. 

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