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What are some pros and cons of fuel cells?
Some pros of fuel cells are that it is: -efficient -produces no odor, no noise -reliable -environmentally friendly -is indefinetely renewable, as long as hydrogen is harvested Some cons of fuel cells are: - fuel cells are expensive -you have to harvest hydrogen, which is hard -The volume of the fuel cells are larger than the average internal combustion engine.
How do hydrogen fuel cells work?
The hydrogen fuel cell operates similar to a battery. It has two electrodes, an anode and a cathode, separated by a membrane. Oxygen passes over one electrode and hydrogen over the other.The hydrogen reacts to a catalyst on the electrode anode that converts the hydrogen gas into negatively charged electrons (e-) and positively charged ions.The electrons flow out of the cell to be used as electrical energy. The hydrogen ions move through the electrolyte membrane to the cathode electrode where they combine with oxygen and the electrons to produce water. Unlike batteries, fuel cells never run out. In principle, a fuel cell operates like a battery. Unlike a battery, a fuel cell does not run down or require recharging. It will produce energy in the form of electricity and heat as long as fuel is supplied.
Why is hydrogen a bad fuel?
It would be simplistic to claim that hydrogen is a bad fuel, but hydrogen does present certain complications as a fuel. Because it is a gas, it is not as easy to store as a liquid fuel such as gasoline. And depending upon how it is stored, it is more likely to explode, in the event of an accident, than gasoline would be. But in some ways hydrogen is an excellent fuel. The only combustion product of burning hydrogen is water. It is completely nonpolluting. And since hydrogen can be made from water (by electrolysis) there is in principle an unlimited supply, as long as you can generate the electricity needed to perform the electrolysis.
How do hydrogen cell work?
The hydrogen fuel cell operates similar to a battery. It has two electrodes, an anode and a cathode, separated by a membrane. Oxygen passes over one electrode and hydrogen over the other.The hydrogen reacts to a catalyst on the electrode anode that converts the hydrogen gas into negatively charged electrons (e-) and positively charged ions.The electrons flow out of the cell to be used as electrical energy. The hydrogen ions move through the electrolyte membrane to the cathode electrode where they combine with oxygen and the electrons to produce water. Unlike batteries, fuel cells never run out. In principle, a fuel cell operates like a battery. Unlike a battery, a fuel cell does not run down or require recharging. It will produce energy in the form of electricity and heat as long as fuel is supplied.
How do fuel cell works?
The hydrogen fuel cell operates similar to a battery. It has two electrodes, an anode and a cathode, separated by a membrane. Oxygen passes over one electrode and hydrogen over the other.The hydrogen reacts to a catalyst on the electrode anode that converts the hydrogen gas into negatively charged electrons (e-) and positively charged ions.The electrons flow out of the cell to be used as electrical energy. The hydrogen ions move through the electrolyte membrane to the cathode electrode where they combine with oxygen and the electrons to produce water. Unlike batteries, fuel cells never run out. In principle, a fuel cell operates like a battery. Unlike a battery, a fuel cell does not run down or require recharging. It will produce energy in the form of electricity and heat as long as fuel is supplied.
What is the cost of fuel cell energy?
I am not able to give you a cost, as there are a number of fuel cell technologies, and it will be difficult to know which ones might ultimately become commercial. So far, fuel cells applications have required large government subsidies. The "hydrogen car" is still apparently a long ways from becoming a reality- see related links.
How long fossil fuel energy has been used?
Fossil fuel has been used for around a million years.
When was the hydrogen invented?
Not invented. Natural element, been around as long as the universe has existed.
What is the difference between battery and fuel cell?
Fuel cells and batteries are similar because they use a chemical reaction to provide electricity. A battery stores the chemical reactants, usually metal compounds like lithium, zinc or manganese. Once used up, you must recharge or throw away the battery. A fuel cell actually creates electricity through reactants (hydrogen and oxygen) stored externally. The fuel cell will produce electricity as long as it has a fuel supply. In short, a fuel cell vehicle is refueled instead of recharged.
What type of fuel will never run out?
none, hydrogen will last a very long time, easily to the end of human life, but it will eventually run out
Why does the sun never goes off?
The sun is our local star. It is a giant fusion engine, and it is "burning" hydrogen and fusing it into helium at an enormous rate. But as long as it has fuel to drive the fusion process that is the sun's life, it will burn fuel continuously. It has been burning for about 4.5 billion years, and it has about that much more time left.
Can you give me a sentence for the word alternative fuel?
Natural gas has long been considered an alternative fuel source to that of conventional petroleum fuel sources.
