Solar thermal power generation prospects of hard road

Put on the overcoat, the Institute of electrical engineering, Chinese Academy of Sciences Wang Zhifeng pointed to five or six pieces of boards in a naked "arm" said, "look, is the board, this propaganda cloth was yesterday the wind blew off."

At the end of 2012, while photovoltaic power generation has a trade dispute, when it fell into a trough, "twin brothers", with the use of solar panels china power generation "thermal power generation" project in Beijing at the foot of the Badaling Great Wall a wasteland was born by the Ministry of science and technology -- the site acceptance, and formally running. Wang Zhifeng is responsible for the project.

This industry experts have been called is the most likely cause of the energy revolution technology, than the photovoltaic power generation into the line of sight of people a little late, but the prospects are very promising. As everyone knows, each built a large-scale photovoltaic power station, should in general be ordinary power plant to build a complete, in order to stabilize the operation of the whole grid. This let environmentalists very "headache", is the development of flexible solar panels power, one is to save such as coal and other non-renewable resources, the two is to avoid the air pollution, but the expansion is not out of the ordinary photovoltaic power plant's shadow, and seems to be even more.

China Electrotechnical Institute is the first research and development of this technology, and the Yanqing solar thermal power generation experiment base is Asia's first megawatt-class solar tower thermal power station is located.

Wang Zhifeng tells a reporter, the entire project is simply borrowed from the sun "hot" to power. Since it is the use of solar energy, then, the final application is the most famous of sunshine place in Northwest China, where the climate is "wind", "cold". Therefore, by industry experts academician Yan Luguang's words, "the future application of the environment is what kind, the experiment will be what kind of".

Into the experimental station, the "umbrella" stands, covers an area of 10000 square meters, equivalent to a small playground. These "umbrella" named mirror, it is vividly called heliostats, because they would like a sunflower chasing the sun. The umbrella surface is composed of many small mirror, there are square, rectangular, is also hexagonal.

Bie Xiaoqiao this side mirror, the reflectivity of the lowest also reached 94%, what does this mean? If you take home dressing mirror used to contrast, the reflectivity is only about 76%, the staff make fun of, "then cattle make-up master station in Tingri mirror will fear."
Standing in front of the giant umbrella, is a 120 meters high white heat absorption tower. The most critical part of the "hot" process, is completed by the 100 "paratrooper" and the "tower general".

And photovoltaic power generation "energy directly into electricity" different, thermal power generation is transformed into heat energy through http://www.solarpanelcellonline.com energy, the heat energy into mechanical energy, power generation.

At the bottom of the column, there are special heat storage system and storage of excess heat, so that the power in the night or cloudy days. This system is "an important difference between the thermal power generation" and "photovoltaic". Although PV can store electrical energy, but requires a large number of battery, and the battery cost is prodigious.
According to the power station brochure on the introduction of the project, the storage capacity can meet the power demand 1 hours after sunset, but the world's most advanced heat storage, has reached the 16 hours after power, plus the day 8 hours, can achieve 24 hours of continuous power, and this is Wang Zhifeng's project group efforts in the direction of. He told reporters, solar thermal power generation technology with the stability of the impact on the power grid to avoid the instability of wind and photovoltaic power generation.