- Reduced greenhouse gas emissions.
- High Reliability.
- Flexibility in installation and operation.
- Development of renewable energy resources.
- Reduced demand for foreign oil.
- Improved environmental quality.
What are the advantages of fuel cells Class 12?
Advantages:
As reactants are continuously supplied, cell runs and there is no need to replace electrolytes
. The only product is water in fuel cells, it is non polluting. Fuel cells have efficiency of 70%. As compared to thermal plants.
What are the advantages of fuel cells over batteries?
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.
What are 3 advantages of hydrogen fuel cells?
- Renewable and Readily Available. …
- Hydrogen is a Clean and Flexible Energy Source to support Zero-Carbon Energy Strategies. …
- More Powerful and Energy Efficient than Fossil Fuels. …
- Highly Efficient when Compared to Other Energy Sources. …
- Almost Zero Emissions.
What are the advantages and disadvantages of fuel cells?
- High Efficiency- when utilizing co-generation, fuel cells can attain over 80% energy efficiency.
- Good reliability- quality of power provided does not degrade over time.
- Noise- offers a much more silent and smooth alternative to conventional energy production.
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 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 Bad?
Hydrogen fuel cells have
bad theoretical and practical efficiency
. Hydrogen storage is inefficient, energetically, volumetrically and with respect to weight. … Efficient HFCs have very slow response times, meaning you again need additional systems to store energy for accelerating.
Are fuel cells renewable?
It can be extracted from water using electrolysis, using power from
renewable solar
or wind, nuclear energy, or fossil energy. It can be extracted from renewable biomass or coal using high temperature gasification. … Today, most hydrogen is derived from fossil natural gas, emitting fossil carbon dioxide as a by-product.
Are fuel cells quiet?
Like a battery, a fuel cell is a
collection of individual cells
that work to cleanly and efficiently convert chemical energy in hydrogen-rich fuels into electricity. Fuel cells have three layers, an anode, cathode and an electrolyte layer.
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 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.
Does Tesla use hydrogen fuel cells?
Battery electric vehicles, or BEVs, are the electric vehicles that most of us are familiar with today, like Teslas. …
Fuel-cell vehicles don't require charging at all
. The hydrogen tank is refilled at a hydrogen station in less than five minutes, just like your typical gas station today.
Why hydrogen cars are better than electric?
The main advantage of hydrogen cars is that
they produce no emissions at the tailpipe
– just water. This benefit is the same as with a normal electric car, and puts both at the forefront of emission-cutting tech in the automotive world.
Are fuel cells safe?
They aren't tied to an electric plug. They produce zero emissions from the tailpipe and can deliver 300 miles or more per tank of fuel. They can be refilled as fast — or faster — than a conventional car with a 15-gallon gas tank. After extensive testing, researchers say
they are as safe to drive as gasoline cars
.
