Fuel cells allows the production of electricity from fuels without combustion , at a higher efficiency than conventional generation systems and with reduced emissions. Since they operate above room temperature, their heat emissions can be recovered for space heating and domestic hot water applications.
How fuel cell is superior to battery?
The biggest difference between the two is that a battery stores energy , while a fuel cell generates energy by converting available fuel. A fuel cell can have a battery as a system component to store the electricity it's generating. ... Essentially, there is a small explosion as the fuel is combusted.
What are the advantages and disadvantages of fuel cells over conventional power plants?
ii) Clean – Fuel cells work with little to no emissions , the only byproducts being electricity, heat and water. They are thus, much cleaner than traditional power generation, producing 97% less nitrogen oxide emissions than the thermal power plants.
What is the advantage of using fuel cell?
Why Study Fuel Cells
Fuel cells can operate at higher efficiencies than combustion engines and can convert the chemical energy in the fuel directly to electrical energy with efficiencies capable of exceeding 60%. Fuel cells have lower or zero emissions compared to combustion engines.
What is the major advantage of fuel cells over traditional batteries?
Hydrogen fuel cells are cleaner and more efficient than traditional combustion-based engines and power plants. Hydrogen and fuel cells can also be used in mobile applications to power vehicles and mobile power packs. The benefits of fuel cells are: Reduced greenhouse gas emissions .
What is a disadvantage of fuel cells?
Disadvantages of using fuel cells in cars
fuel cells and electric motors are less durable than petrol engines and diesel engines , so they are not so long-lasting. fuel cells are very expensive. ... some methods of producing the hydrogen fuel release carbon dioxide and other pollutants into the atmosphere.
What are the advantage and disadvantages of using fuel cells?
Good reliability- quality of power provided does not degrade over time . Noise- offers a much more silent and smooth alternative to conventional energy production. Environmentally beneficial- greatly reduces CO2 and harmful pollutant emissions.
Why are hydrogen engines a bad idea?
The biggest reason why hydrogen-combustion engines are no good? They create nitrogen oxide , which isn't good for people or the environment. Even though carbon isn't part of the hydrogen combustion process, NOx isn't a compromise as automakers look to zero-emission vehicles.
Which is better battery or fuel cell?
Fuel cell electric vehicles have a much higher energy density by weight, allowing them to overcome the range and weight challenges associated with battery electric vehicles. Hydrogen tanks are also more compact and lighter than an array of fully charged batteries.
Which of the following is a disadvantage of using hydrogen fuel cells?
1) Although Hydrogen cells are being used to power hybrid cars, it's still not a feasible source of fuel for everyone. It is expensive. 2) The transport and storage of Hydrogen , even in small amounts is difficult. 3) As of the moment the present infrastructure supports gasoline, replacing it requires refitting.
What are the problems with hydrogen fuel cells?
The two prime dangers from fuel cell and hydrogen-powered vehicles are the danger of electrical shock and the flammability of the fuel . Fuel cells power vehicles by electro-chemically combining hydrogen gas (H2) and oxygen (O2) from the surrounding air into water (H20) and electrical energy.
Why are fuel cells not widely used?
From the point of view of a filling station owner, adding hydrogen facilities is not economically viable and potentially too dangerous ; this contributes to the low production numbers. The lack of ‘push' from legislators further hinders the progress of the hydrogen fuel cell car.
What are the advantages and disadvantages of non conventional energy sources?
(i)Non-conventional sources of energy are inexhaustible. They do not pollute the environment. (ii)Nuclear power is emits large amounts of energy. (iii)Non-conventional sources of energy are low cost and easy to operate .
How long do fuel cells last?
The fuel cell stacks are designed to last the lifetime of the vehicle, about 150,000–200,000 miles . At the end of its lifespan, the fuel cell will be disassembled and the materials recycled, similar to what happens with vehicle components today.
Are fuel cells the future?
In the future, fuel cells could power our cars , with hydrogen replacing the petroleum fuel that is used in most vehicles today. ... Unlike a typical battery, which eventually goes dead, a fuel cell continues to produce energy as long as fuel and oxidant are supplied.
Why hydrogen is not used as a fuel?
Hydrogen has the highest calorific value so it can be considered as the best fuel but it is highly inflammable so it is diificult to store, transport and handle so it is used as a fuel only where it is absolutely necessary.
