| 词条 | Draft:Concentrated photovoltaic thermal CPVT |
| 释义 |
A Concentrated Photovoltaic Thermal system (CPVT) consists of four parts including the absorber, concentrator, solar radiation tracker and thermal absorber.[1] As the CPVT works with the beam radiation, the absorber and concentrator should follow the position of the sun to maximize the incident beam radiation. In order to concentrate the radiation, two major technologies of Fresnel lens, and parabolic concentrators can be used. CPVT system components:
A solar tracker is a device that changes the position of the solar module so that that the radiation can be perpendicular to the surface. In the design of the solar tracker, the position of the sun and the earth in a year period should be evaluated.[1]
The conventional material for reflectors is Anodized Aluminum. However, one of the disadvantages of this is that when a large reflector is constructed, the aluminum structure begins to deviate from its main characteristic which causes a depression in the surface of the reflector.[1]
Multi-junction PV cells have been proven to be particularly well suited for a concentrating system where sunlight can be focused through lenses or mirrors into a much smaller cell.[1]
Two major procedures of ventilation of solar collectors are active ventilation and passive ventilation. With passive ventilation, the heat generated in the surface of the collector is transmitted to the air by heat sink. With active ventilation, the heat can be used for cooling or heating purposes. So, active ventilation converts a CPV system to a CPVT system.[1] References1. ^1 2 3 4 {{cite journal |last1=Gholami |first1=Hassan |title=Evaluation of optimal dual axis concentrated photovoltaic thermal system with active ventilation using Frog Leap algorithm |journal=Energy Conversion and Management |date=15 November 2015 |volume=105 |page=2 |doi=10.1016/j.enconman.2015.08.033 }} |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。