Laser Micro-Processing Technology on Crystalline Solar Cell

Applied laser ◽  
2011 ◽  
Vol 31 (6) ◽  
pp. 469-472
Author(s):  
潘涌 Pan Yong ◽  
姜兆华 Jiang Zhaohua ◽  
骆公序 Luo Gongxu ◽  
王国庆 Wang Guoqing ◽  
安博言 An boyan
Author(s):  
Jimeng Shi ◽  
Cheng-Xian Lin

Abstract In order to improve performance of photovoltaic/thermal (or PV/T for simplicity) collectors, this paper firstly validated a previous computational thermal model and then introduced an improved computational thermal model to investigate the effects of the major control parameters on the thermal performance of PV/T collectors, including solar cell temperature, back surface temperature, and outlet water temperature. Besides, a computational electrical model of PV/T system was also introduced to elaborate the relationship of voltage, current and power of a PV module (MSX60 poly-crystalline solar cell) used in an experiment in the literature. Simulation results agree with the experimental data very well. The effects of the time-steps from 1 hour to minute, which is closed to the real time, were also reported. At last, several suggestions to improve the efficiency of PV/T system were illustrated.


2019 ◽  
Vol 64 (1) ◽  
pp. 40-46
Author(s):  
Ali Kareem Abdulrazzaq ◽  
György Bognár ◽  
Balázs Plesz

Accurate and reliable PV device modelling is a fundamental tool to optimize system performance. The regular operation of the PV system in an outdoor condition implies the need for a model that relate the environmental effects. This paper presents a new, simple, and efficient method for constructing the I-V characteristics for a PV cell incorporating the environmental conditions. The proposed model is based on the idea of dividing the voltage axis of the solar cell I-V characteristics using a fixed time interval. For each voltage interval point, a two-dimensional current matrix is calculated, corresponding different irradiance conditions and temperatures. Polynomial surface fitting is used to build sub-models for each voltage interval. The current two-dimensional matrix, for each point, is calculated by two different methods. The first method is based on linear interpolation of the measured I-V curves. The second method uses pre-extracted five parameters for the well known single diode model at a wide range of environmental conditions. The developed modelling technique provides accurate results compared with the measured data for a mono-crystalline solar cell.


2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Chen-Chih Hsueh ◽  
Subramani Thiyagu ◽  
Chien-Ting Liu ◽  
Hong-Jhang Syu ◽  
Song-Ting Yang ◽  
...  

10.29007/ndzx ◽  
2018 ◽  
Author(s):  
Mahesh Chauhan ◽  
Davit Dhruv ◽  
Sapana Solanki ◽  
Nikesh Shah

Solar energy is most powerful and trending source among all renewable energy sources. For utility point of view, solar power is available at each place but problem is that the efficiency of solar cell is very low. In addition, the efficiency of solar cell under different atmospheric conditions like different temperature and irradiation, the power we get from the solar cell is different and same as that the efficiency is also changed so for analyzing the behavior of solar cell, we have analyzed mono-crystalline solar cell for different temperature and irradiation and results are taken. For analysis point of view, the mono crystalline solar cell is analyzed into solar simulator under different values of irradiation and temperature and then experimental results for the same are taken. For cross checking the results that we got from the solar simulator, we have done mathematical modelling of solar cell into MATLAB and then the simulated results are taken, the similar kind of results came from the simulation and experimental readings as well.


2020 ◽  
Vol 04 ◽  
Author(s):  
Pattanapong Jumrusprasert

Aims: Field test for the conversion efficiency determination of high concentrating solar cells with parabolic dish concentrating system in a tropical location. Background: Typical solar cell system using in a tropical location is a fixed panel via commercial grade mono crystalline, poly crystalline or amorphous solar panels. They have low conversion efficiency so they need wide area to enhance the electrical energy. The consequence is low yielding in terms of economics and unpopular used in urban zone. Objective: To test for the conversion efficiency determination of high concentrating solar cells with parabolic dish concentrating system in a tropical location. Method: The research was conducted at the top of Nakhon Ratchasima Rajabhat University(NRRU) Science Center Building, Nakhon Ratchasima, Thailand. The four multi junction solar cells were connected together to receive the reflecting concentrated sunlight from the parabolic dish. I also determined the conversion efficiency of the 160 watts peak mono crystalline solar cell panel for a comparing purpose. Multi junction solar cells with parabolic dish concentrating and cooling systems, solar cell panel, pyrheliometer, pyranometer and light sensor were set up on the dual axes sun tracker. Data were gathered every 5 minutes all day from January 2018 to February 2019 for all 3 seasons via the automatic data logging system. Result: The results had presented that the average conversion efficiency of high concentrating solar cell module with parabolic dish concentrating system for 100x and of the 160 watts peak mono crystalline solar cell panel were 15.18% and 9.46% respectively, with the percentage difference of 56.45%. While, the average output powers per unit area per year of multi junction solar cells with concentrating system and mono crystalline solar cell panel were 98,544.92watt/m2 and 664.37watt/m2 respectively, with the ratio of 148.33. Conclusion: It is clearly seen that, in terms of conversion efficiency and output power per unit area per year, the multi junction solar cells with parabolic dish concentrating system has more advantage than the typical mono crystalline solar cell panel. Other: Especially for economical aspect, the utilization of parabolic dish concentrating system with MJ solar cells can reduce the land investment cost and also encourage of solar cell utilization not only in rural but also in urban for the tropical climate countries.


Sign in / Sign up

Export Citation Format

Share Document