2009年10月1日星期四

fuel cells will not be long

Commercial application of fuel cells will not be long before (a)


Hydrogen as fuel, is expected to achieve zero-emission fuel cell buses will soon appear in Beijing, Shanghai street, Apple Laptop Battery which marks the Chinese Government, the Global Environment Facility, United Nations Development Program (UNDP) jointly supported the implementation of the demonstration project into the stage. Reporter held in Beijing from a recent UNDP of commercial fuel cell bus demonstration project on the second working meeting was informed that the last 5-year demonstration project, a global tender for the purchase of 12 fuel cell buses, hp laptop battery, battery and set up facilities in the corresponding hydrogenation , the two model runs at the Beijing-Shanghai. As a "green car", "battery bus" in 2008 is expected to serve the Beijing Olympic Games. Reporter recently in the automotive fuel cell and its application in an interview with the Shanghai Jiaotong University of

Dr. Liu Shengzhou Study Institute of Chemical Technology.


Liu: put a fuel cell are stored in the fuel and oxidizer in the chemical energy, such as temperature according to the principle of electrochemical energy into electrical energy conversion devices. It's different from the conventional battery is: when it works continuously to the battery required the importation of fuel and oxidizer in through the electrochemical reaction to generate water and release electrical energy.Apple M7318 Battery, Apple PowerBook G3 Battery, Apple PowerBook G4 Battery, As long as the fuel supply to maintain battery power will continue to work.

Fuel cells are an efficient, cheap, pollution-free power, the study has been in it has more than 100 years of history. The scientific community for a long period of time the electrode interface, a lack of understanding of the law of electron transfer, together with the electrode surface have potential limitations, delayed the actual use of fuel cell operation time. Although the fuel cell experiments already carried out a complete about fuel cell concepts and research methods have failed to be a systematic summary. Apple M7318 Battery,Until the 50's at the end of the last century, the electrode interface and the nature of the surface potential have gradually been revealed, practical fuel cell was able to come out. Since the beginning of the 20th century, 60's, fuel cells have been obtained in the aerospace industry applications, but it was not until the 20th century, the last 10 years, it was used as a vehicle to consider alternatives to internal combustion engines.


Liu: First, high efficiency. Fuel cell power generation is not between the energy loss aspect. Thermal or nuclear power, only 40% of maximum efficiency, and fuel cell power generation efficiency is generally 40% ~ 60%, emissions of heat can also be used for the second generation, the utilization efficiency of up to 70% ~ 80%.


Two are flexible. Fuel cell power generation device is composed of a number of basic units. May be required depending on the flexibility to assemble a different scale 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, fuel cells because of light weight, small size, high specific power, Apple PowerBook G3 Battery,relatively easy to move up, so it is particularly suitable in the islands or in remote areas on the construction of power stations , or build a distributed power plant.


Three are a variety of fuels. Although fuel cells are hydrogen main job substances, but it has the available fuel gas, methanol, liquefied petroleum gas and other hydrocarbons.


Four are non-polluting. The main product of fuel cells are water, essentially non-emission of harmful gases, Apple M7318 Battery, Apple PowerBook G3 Battery, Apple PowerBook G4 Battery, so it is a very clean source of energy. It is reported that a number of fuel cell gas emissions of the harmful environmental protection standards for the United States by two orders of magnitude lower. In addition, stationary fuel cells are power generation, Apple PowerBook G4 Battery,has no mechanical transmission device, only in the control system and other auxiliary devices have moving parts , thus the work of a small vibration, low noise.

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