Abstract
In this communication, an attempt has been made to optimize maximum electrical power (i) for a given number of solar cells by varying area of photovoltaic (PV) module and (ii) for a given PV module area by varying number of solar cell. Analytical expressions for solar cell temperature and electrical efficiency of solar cell have also been derived for opaque and semi-transparent PV module. Numerical computations have been made for New Delhi climatic conditions with the help of MATLAB R2015a. Based on numerical computation, it has been observed that (i) an electrical efficiency is maximum for higher PV module area with lower packing factor for a given peak power of PV module (75 Wp) and (ii) an electrical efficiency is lower with maximum packing factor for a given PV module area (2.1 m2). Further, an effect of different solar cell materials (i.e., m-Si, p-Si, a-Si, CdTe, CIGS, and HIT) on electrical power has also been investigated. It is found that electrical power output for m-Si and HIT is better than other solar cell material PV module.
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- A m :
-
Area of module (m2)
- E m :
-
Electrical output of PV module (W)
- h o :
-
Heat loss coefficient from top of module to ambient (W/m2)
- h i :
-
Heat loss coefficient from bottom of module to ambient (W/m2)
- I(t):
-
Solar intensity (W/m2)
- K g :
-
Thermal conductivity of glass cover of PV module (W/m K)
- K T :
-
Thermal conductivity of tedlar of PV module (W/m K)
- L g :
-
Thickness of glass cover of PV module (m)
- L T :
-
Thickness of tedlar of PV module (m)
- T a :
-
Ambient temperature (°C)
- T c :
-
Solar cell temperature (°C)
- T 0 :
-
Reference cell temperature for optimum cell efficiency, i.e., 25 °C
- U b :
-
Overall heat loss coefficient from bottom of solar cell to ambient (W/m2 K)
- U T :
-
Overall heat loss coefficient from top of solar cell to ambient (W/m2 K)
- U L :
-
Overall heat loss coefficient of PV module
- V :
-
Air velocity (m/s)
- \( {\alpha }_{\text{c}} \) :
-
Absorptivity of solar cell
- \( {\alpha }_{\text{T}} \) :
-
Absorptivity of tedlar
- \( {\beta }_{0} \) :
-
Temperature coefficient of materials
- \( {\beta }_{\text{c}} \) :
-
Packing factor of PV module
- \( {\eta }_{\text{m}} \) :
-
Module efficiency
- \( {\eta }_{0} \) :
-
Module efficiency at standard test condition
- \( {\tau }_{\text{g}} \) :
-
Transmissivity of glass
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Meraj, M., Emran Khan, M., Tiwari, G.N., Khan, O. (2019). Optimization of Electrical Power of Solar Cell of Photovoltaic Module for a Given Peak Power and Photovoltaic Module Area. In: Saha, P., Subbarao, P., Sikarwar, B. (eds) Advances in Fluid and Thermal Engineering. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-13-6416-7_40
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DOI: https://doi.org/10.1007/978-981-13-6416-7_40
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