Concentrator Based Solar Tile for Optimized Results

PRESENTED BY

ANITA SINGH

DEPARTMENT OF ELECTRICAL ENGINEERING

NITTTTR CHANDIGARH

CONTENT•Introduction•Proposed work•Experimental result•Conclusion•Reference

INTODUCTION

• Sun has enormous amount of energy .energy use in conversion in electrical energy by use of solar cell.

• Many works are carried to install the solar cell .but use of concentrator based solar cell is purposed.

• Result shows that by using the static concentrator the power output increases significantly by 2.5 times approximately.

FABRICATION Two approaches available for fabrication • Larger area crystallization method (LAC)• in this fabrication technique a layer of SiO2 has been deposited on Si substrate. By this coating about 1% of the area has been opened for the seeding holes. When recrystalization is done optically by heated larger area the area of 100 cm square in one step. The layer of the silicon has same orientation as of recrystalization process

• Zone Melting Recrystalization (ZMR)• thin layer of SiO2 is deposited on foreign substrate up to length of few cm and width of 2mm.The argon is used to avoid the SiO2 layer evaporation and several halogen lamps are used for the heating and the cooling process. After the amplification of the integrated grid substrate silicon lead with solar cell has efficiency up to 16.1%.

PURPOSED WORK

• Used acrylic for manufacturing the prototype structure for better transitivity and cheap cost.

• Saw tooth type structure purposed for better reflection of light.

• Aluminum coating provided in the rear side of groove structure to avoid scatting of light.

• When tested with clear sky condition aluminum tiles provided approximately 40% more efficiency .

PURPOSED STRUCTURE

• Duffie and Beckman equation for quantum efficiency calculation

• FR.PV= (c+r-s)/2r

 Where • s=[c2+r2-2c*r cosᴪ] Here, FR.PV = View factor from reflector

R = Reflected width (m) ᴪ = Angle(degree) c = PV module width(m) Percentage increase of output is given by• = {(preflector - p)/p}*100 (3)

Where,P=power(w)

Experimental result

conclusion

• In this paper a solar tile fabrication has been put forward with aluminum coating and white tiles and it has been found that by using aluminum coating the efficiency increase and ZMR is the better crystallization method.

• The proposed design has a grooved structure on the rare side for better total internal reflection.

REFRENCE

 • [1] Jaime Parada, J.C. Mifiano, J.L. Silva “Construction and Measurement of a Prototype of P.V. Module with Static

Concentration." Tenth European Photovoltaic Solar Energy Conference.  • [2] S. R. Wenham. P. Campbell, S. Bowden and M. A. Green "Improved Optical Design for Photovoltaic Cells and

Modules", Twenty Second IEEE PVSC, pl05. • [3] J.C. Minallo, A. Luque “Limit of Concentration Under Extended Non homogeneous Light Sources" Applied

Optics22, 1983.  • [4] P. Almond, R Hyrd Material Engineering p42.  • [6] 3M Brand ECP-305 Data Sheet. • [7] S. Bowden, S.R. Wenham, P. Coffey, M. Dickinson, M.A. Green. "Light Trapping in Photovoltaic Roof Tiles",

Eleventh European Photovoltaic Solar Energy Conference. • [8] C. Hebling, R. Gaffke, P.Lanyi,H.Lautenschlager, C. Schetter, B.Wagner,F.Lutz " Recrystallized Silicon on SiO2-

Layers for Thin Film Solar Cells”,25th PVSC, Washington D.C, May 1996. • [9]Duffie, J.A., and Beckman W.A., " Solar Engineering of Thermal Processes,Second Edition,Wiley –

Interseience,1991.  • [10] Ankur Mahajan, Amita Kumari ,Anita Kumari, Dr. S. Chatterji, Dr. S. Bhagwan Singh, "Software Based Approach

for Solar Power Estimation”ICORE, Gujarat, 2012