| URN | etd-0705110-170926 | Statistics | This thesis had been viewed 1229 times. Download 26 times. |
| Author | Tsai-Chung Liu | ||
| Author's Email Address | liutsai@mrt.gov.tw | ||
| Department | Institute of Mechatronic Engineering | ||
| Year | 2009 | Semester | 2 |
| Degree | Master | Type of Document | Master's Thesis |
| Language | zh-TW.Big5 Chinese | Page Count | 111 |
| Title | The analysis on the solar PV cell efficieney by thin film water-cooling effect | ||
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| Abstract | This study aims at understanding when solar panel absorbs energy, how the power of solar panel will get reduced due to over-heat. Meanwhile, what is the effect of the illumination on power generation efficiency will also be studied. In the experiment, a set of solar photo-voltaic equipment is set up, with illumination tilt angle of 25 degrees, then the radiation quantity of halogen lamp is adjusted through the adjustment of light adjustment plate, and solar panel is illuminated to generate photo-voltaic effect and to form voltage and current so that eventually, a solar photo-voltaic system is formed. Different radiation quantifies are used, namely, 300, 400, 500, 600 W/ , meanwhile, accompanied with upper cooled Reynold number (Re = 0, 4.37e8, 5.14e8, 5.35e8) and lower cooled Reynold number (Re = 0, 2.17e8, 2.55e8, 2.65e8) water flow rate change, voltage and current are measured and compared. Variable loading lamp is used to illuminate solar panel, and the solar panel used is made up of poly-crystalline solar cell material. Since solar cell is a PN junction diode, electron and hole is then generated to convert optical energy into electrical energy. Moreover, the independent current source generated by solar cell is provided to the load, hence, data is generated in this experiment at different radiation quantity and different water flow rate. In the experiment, radiation meter is used to measure the radiation value. The water flow rate of solar panel is changed, and radiation meter is used for the measurement. Then I-V curve tracer is used to measure the voltage and current, and the data is recorded. Then all the data is sent to the computer for operation, and I-V curve is then drawn. Meanwhile, thermal imager is used to measure the surface temperature of the solar panel, and to compare the temperature difference at different water flow rate. Furthermore, other interference factors are investigated so as to achieve the best power generation efficiency and to apply it to other related fields. Key words: solar panel, photo-voltaic effect, radiation quantity, I-V curve |
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| Advisor Committee | |||
| Files | indicate accessible at a year | ||
| Date of Defense | 2010-06-18 | Date of Submission | 2010-07-08 |