A fuel cell is a device that produces electricity from chemical fuels, in just one step. Unlike batteries, fuel cells don’t run down or need recharging. As long as there is a constant source of fuel and oxygen, fuel cells will continue to generate power.
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- Electricity generated from hydroelectric dams and wind power is more _______ than fossil fuel generated power.
- Fuel cells are versatile as they can scale up easily and meet a variety of power needs – large or small. You can ____ individual fuel cells to increase the amount of power they can provide. The taller the stack, the more power you have.
- 5-2.In fuel cells，the water is produced in which side?
- 这个步骤确保燃油泵工作正常。 A: This step makes sure that the fuel pump operates correctly. B: The following step establishes the correct functioning of the fuel pump. C: The following step exercises the correct functioning of the fuel pump. D: If you follow the step, you don't have to fear the incorrect functioning of the fuel pump.
- 这个问题来源于燃油系统。 A: The source of the problem is in the fuel system. B: The beginning of the problem is in the fuel system. C: The origin of the problem is in the fuel system. D: The problem originates from the fuel system.
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It works in the following manner: the engine converts the fuel from the fuel tank into the mechanical energy to drive the generator, generating electric power．
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As fuel is burned in the engine, about one-third of the heat energy in the fuel is converted into power.
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The fuel oil system for a diesel engine can be considered in two<br/>parts---- the fuel supply and the ()systems A: fuel purification B: fuel combustion C: fuel treatment D: fuel injection
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In a parallel hybrid car, the fuel tanks upplies the fuel to the engine and the battery supplies the electric power to the electric motor．
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The fuel oil system in the ship's engine room is not included . A: Fuel purifying system B: Fuel transfer system C: Fuel supply system D: Fuel cooling system