2009年9月23日星期三

Fuel cell power generation compared with other unique advantages

Fuel cell power generation compared with other unique advantages.


And high efficiency.dell laptop battery Without fuel cell power generation from geothermal energy to mechanical energy again to the conversion process, there is no link in the middle of the energy loss. At present, thermal power or nuclear power is the highest efficiency of 40 percent,GD761 Battery, KD476 Battery, TD347 Battery
Inspiron 1000 Battery, while the fuel cell power generation efficiency is generally 40% ~ 60%. High melting temperature carbonate and solid electrolyte type fuel cells dell battery, emissions of heat can also be used for the second generation. The use of waste heat for heating or combined together for power generation, fuel cell utilization efficiency up to 70% ~ 80%.


Flexibility. Fuel cell power generation device is composed of a number of basic units. A basic unit is a two folder electrolyte electrode plate. The basic unit will be assembled hundreds of them would constitute a battery pack, battery pack and then together to form a power station. Can be flexible depending on the needs of different size to the assembly of fuel cell power plant. The basic unit of fuel cell design standards can carry out large-scale pre-production, so the fuel cell power plant construction and low cost, short construction cycle. In addition, as a result of fuel-cell light weight, small size, high specific power, relatively easy to move up,Inspiron 1000 Battery, so it is particularly suitable in remote areas or islands to build power stations, or build a distributed power plant.


Fuel diversity. Although the fuel cell hydrogen is mainly the work of the material, but it can be used for fuel gas, methanol, liquefied petroleum gas and other hydrocarbons. According to the actual situation, in line with local conditions to use a different fuel, or combination of different fuel use, can reach local materials, to save resources.


Pollution-free. The main product of fuel cells is water, essentially non-emission of harmful gases, it is a very clean source of energy. It is reported that a number of fuel cell emissions of harmful gases in the United States national standards for environmental protection by two orders of magnitude lower. In addition, the fuel cell is a stationary power generation, has no mechanical transmission device,GD761 Battery, KD476 Battery, TD347 Battery
Inspiron 1000 Battery, only in the control system and other auxiliary devices have moving parts, thus it is the work of a small vibration, low noise.


Due to high cost of fuel cell, generating cost-effective as other methods do not, we can not get the promotion. Therefore,TD347 Battery only the cost of significantly reduced and further enhance the service life, fuel cells will enhance their competitiveness. According to the U.S. departments of statistics, when the construction cost of 3 U.S. dollars per watt hours (1994 has reached), the fuel cell will be able to enter the market; when reduced to about 2 U.S. dollars, can be in remote areas as an independent power generating system; When reduced to about one U.S. dollars, the market will expand rapidly. 1 U.S. dollars to achieve this goal, it is necessary to the life of fuel cells will be increased to 40,000 hours.


The development of fuel cells is now very fast speed. In accordance with national plans, by 2000, Japan’s fuel cell power output will be close to 2200 megawatts, the United States will reach 500 megawatts in 2000, Europe will reach 500 ~ 900 MW. By 2010, the world’s total installed capacity of fuel cells will reach 60,000 MW. As a new type of fuel cell energy, is still relatively high cost, long life is not enough, power is still relatively small. However, with the depth of the research work, these problems will be solved. Many scientists believe that the era of knowledge economy in the 21st century, fuel cells will account for in the field of energy in a pivotal position, therefore, have the fourth-generation power technologies,KD476 Battery, research and development of fuel cells with the significance of the next century.


Dianchi Lake every year 100,000 tons of refuse what way

Dianchi Lake salvage garbage placed where it? Dianchi Lake every day along the flow of garbage to deal with the future, what will? This reporter visited the HKMA Kunming Yunnan, Kunming Environmental Protection Bureau, Kunming sanitation experts monitoring center after that, GD761 Battery, KD476 Battery, TD347 Battery
Inspiron 1000 Battery,a massive clean-up campaign refuse Dianchi Lake basin has been fully launched in the next few days, but the inflow of garbage along the Dianchi Lake how to deal with,GD761 Battery, it is worth exploring one of the new problems.


Refuse disposal sites will be built lake


Kunming, Yunnan Province, according to the HKMA person in charge, the current agricultural non-point source pollution of Dianchi Lake pollution accounts for 40 percent, and 15 lake township agricultural population of about 700,000 people, an annual output of 100,000 tons solid waste per day about 280 tons. Collected as a result of the lack of lake township removal treatment systems, the main river into the lake and piles of refuse, garbage dumping in rural areas has become the main channel, garbage and sewage directly or indirectly discharged into Dianchi Lake.

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