PV Cell Performance with Varying Temperature Levels

Author(s):  
C. Santhi Durganjali ◽  
Radhika Sudha
2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Damasen Ikwaba Paul ◽  
Mervyn Smyth ◽  
Aggelos Zacharopoulos ◽  
Jayanta Mondol

Photovoltaic (PV) concentrators are a promising approach for lowering PV electricity costs in the near future. However, most of the concentrators that are currently used for PV applications yield nonuniform flux profiles on the surface of a PV module which in turn reduces its electrical performance if the cells are serially connected. One way of overcoming this effect is the use of PV modules with isolated cells so that each cell generates current that is proportional to the energy flux absorbed. However, there are some cases where nonuniform illumination also exists in a single cell in an isolated cells PV module. This paper systematically studied the effect of nonuniform illumination on various cell performance parameters of a single monocrystalline standard PV cell at low and medium energy concentration ratios. Furthermore, the effect of orientation, size, and geometrical shapes of nonuniform illumination was also investigated. It was found that the effect of nonuniform illumination on various PV cell performance parameters of a single standard PV cell becomes noticeable at medium energy flux concentration whilst the location, size, and geometrical shape of nonuniform illumination have no effect on the performance parameters of the cell.


2019 ◽  
Vol 7 (3) ◽  
pp. 1468
Author(s):  
Ahmed Mohsin Alsayah ◽  
Mahdi Hatf Kadhum Aboaltabooq ◽  
Bassam Abed Saheb M.hussein ◽  
Mahir H. Majeed

2020 ◽  
pp. 114-119

Experimental and theoretical study Porphyrin-grafted ZnO nanowire arrays were investigated for organic/inorganic hybrid solar cell applications. Two types of porphyrin – Tetra (4-carboxyphenyle) TCPP and meso-Tetraphenylporphine (Zinc-TPP)were used to modify the nanowire surfaces. The vertically aligned nanowires with porphyrin modifications were embedded in graphene-enriched poly (3-hexylthiophene) [G-P3HT] for p-n junction nanowire solar cells. Surface grafting of ZnO nanowires was found to improve the solar cell efficiency. There are different effect for the two types of porphyrin as results of Zn existing. Annealing effects on the solar cell performance were investigated by heating the devices up to 225 °C in air. It was found that the cell performance was significantly degraded after annealing. The degradation was attributed to the polymer structural change at high temperature as evidenced by electrochemical impedance spectroscopy measurements.


2013 ◽  
Vol 51 (2) ◽  
pp. 125-130 ◽  
Author(s):  
Sun-Min Park ◽  
Hae-Ran Cho ◽  
Byung-Hyun Choi ◽  
Yong-Tae An ◽  
Ja-Bin Koo ◽  
...  

Author(s):  
Mingyu Liao ◽  
Lakhmi Jain ◽  
John Pattison ◽  
Meng-Hung Cheng ◽  
Herchang Ay

Author(s):  
Andrew T. Lendvay ◽  
Tibor S. Laszlo

AbstractThe radiation intensity emitted by the surface of an extinguished cigarette coal in a heated environment was compared with the radiation intensity of an artificial blackbody at the same temperature. The experiments were carried out at several temperature levels between 50°C and 125°C. The results indicate that the emittance of the cigarette coal is close to unity. The calculated values based on data obtained within the limits of the experiments varied between 0.997 and 0.91 (average 0.97).


Alloy Digest ◽  
1954 ◽  
Vol 3 (5) ◽  

Abstract Nimonic 80 and Nimonic 80A are nickel-base alloys containing a high percentage of chromium, with aluminum and titanium as hardening agents. They are made to the same compositional specification, but Nimonic 80A is produced to meet a more severe requirement with respect to resistance to creep when stressed at higher temperatures than Nimonic 80. Both alloys show high strength at high temperature levels and are very resistant to scaling, oxidation, heat and corrosion. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-10. Producer or source: Henry Wiggin & Company Ltd.


2013 ◽  
Vol 31 ◽  
pp. 120-124 ◽  
Author(s):  
So Young Lee ◽  
Dong Won Shin ◽  
Chenyi Wang ◽  
Kang Hyuck Lee ◽  
Michael D. Guiver ◽  
...  

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