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. … Reduced demand for foreign oil.
What is fuel efficiency in science? what is fuel efficiency in chemistry.

What are the advantages of fuel cell?

Fuel cells can have an efficiency of over 80 per cent, compared to internal combustion engines that currently operate at around 25 per cent efficiency and power plants at about 35 per cent. This is a huge increase in efficiency and shows that the power going in is creating much more energy.

What is a fuel cell and what are its main advantages?

(1) The reactants are continuously supplied to the electrodes from the reservoir. Unlike conventional cells, the fuel cells do not have to be discharged when the chemicals are consumed. (2) They are non polluting because the only reaction product is water (for hydrogen-oxygen fuel cell).

What do you mean by fuel cell?

A fuel cell is an electrochemical cell that converts the chemical energy of a fuel (often hydrogen) and an oxidizing agent (often oxygen) into electricity through a pair of redox reactions. … They are also used to power fuel cell vehicles, including forklifts, automobiles, buses, boats, motorcycles and submarines.

What is fuel cell advantages and disadvantages?

Expensive to manufacture due the high cost of catalysts (platinum) Lack of infrastructure to support the distribution of hydrogen. A lot of the currently available fuel cell technology is in the prototype stage and not yet validated. Hydrogen is expensive to produce and not widely available.

What are the advantages of fuel cells over other types of electrochemical cells?

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 is fuel cell in chemistry class 12?

A fuel cell can be defined as an electrochemical cell that generates electrical energy from fuel via an electrochemical reaction. These cells require a continuous input of fuel and an oxidizing agent (generally oxygen) in order to sustain the reactions that generate the electricity.

What is fuel cell and types?

  • Polymer electrolyte membrane fuel cells. …
  • Direct methanol fuel cells. …
  • Alkaline fuel cells. …
  • Phosphoric acid fuel cells. …
  • Molten carbonate fuel cells. …
  • Solid oxide fuel cells. …
  • Reversible fuel cells.

Who makes fuel cells?

Advent Technologies Holdings, Inc. The fuel cell company manufactures basic components that track the performance of hydrogen fuel cells and other energy systems. Laurence Alexander of Jefferies on July 6 maintained an Outperform rating on Advent Technologies Holdings, Inc. (NASDAQ:ADN) with an $18 price target.

What is a disadvantage of using 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.

Are fuel cells safe?

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.

What are fuel cells State two advantages of hydrogen oxygen fuel cell?

2. It doesn’t produce harmful emissions. When hydrogen is burned, it doesn’t emit harmful substances. Basically, it reacts to oxygen without burning and the energy it releases can be used to generate electricity used to drive an electric motor.

Is fuel cell better than battery?

Hydrogen fuel cells have a far greater energy storage density than lithium-ion batteries, offering a significant range advantage for electric vehicles while also being lighter and occupying less space.

What is fuel cell explain with diagram?

A fuel cell is a device that converts chemical potential energy (energy stored in molecular bonds) into electrical energy. … A chemical reaction strips the hydrogen molecules of their electrons and the atoms become ionized to form H+. The electrons travel through wires to provide a current to do work.

What are fuel cells give two examples?

Fuel cell nameElectrolyteStatus
Phosphoric acid fuel cellMolten phosphoric acid (H3PO4)Commercial / Research
Solid acid fuel cellH+-conducting oxyanion salt (solid acid)Commercial / Research
Molten carbonate fuel cellMolten alkaline carbonateCommercial / Research
Who makes the best fuel cells?

Key Points. Hyundai and Toyota are the dominant players in the fuel cell electric vehicle market. The two companies are investing in advancing fuel cell technology.

Who are the largest fuel cell manufacturers?

  • Hyundai Fuel Cell.
  • Doosan Fuel Cell.
  • Horizon Fuel Cell.
  • Ballard Fuel Cell.
  • Nuvera Fuel Cell.
  • Air Liquide Fuel Cell.
  • Hydrogenics Fuel Cell.
  • Intelligent Energy Fuel Cell.
Do Fuel cells produce NOx?

by contrast, a stationary fuel cell operating on natural gas produces approximately 0.01 lb/MWh for NOx. Hydrogen can be produced using a wide variety of resources found here in the U.S. Hydrogen can be renewable and produced by waste, biomass, wind, solar, tidal, wave, and geothermal.

What are the advantages and disadvantages of dihydrogen as a fuel?

Use of dihydrogen as fuel provides pollution free atmosphere because its combustion product is only water. 3. Heat of combustion per gram of dihydrogen is more than twice that of jet fuel. (b) 1.

Are fuel cells efficient?

Fuel cells are the most energy efficient devices for extracting power from fuels. Capable of running on a variety of fuels, including hydrogen, natural gas, and biogas, fuel cells can provide clean power for applications ranging from less than a watt to multiple megawatts.

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.

What cars use fuel cells?

  • 2021 Toyota Mirai.
  • 2018 Hyundai Nexo.
  • Foton BJ6123FCEVCH-1 fuel cell bus in operation.
How much does a fuel cell cost?

These equipment costs were generally offset by a federal tax credit available for fuel cell systems, set at the lesser of $3,000/kW or 30% of the cost. For an average system costing $33,000, this tax credit reduces the effective cost of the fuel cell system by about $10,000.

Are fuel cells legal for street?

Currently, fuel cells are not legal for use on vehicles operated on public roads. … What this means is that if your truck was built after 1974, you won’t pass a smog inspection with a fuel cell installed. Trucks built before 1974 aren’t subject to smog inspections, so you’ll be safe.

What is fuel cell discuss h2o2 fuel cell?

The Fuel cell consists an anode, a cathode and an electrolyte. Hydrogen is passed through the anode and oxygen is passed through cathode. … The protons pass through electrolyte and electrons generate electricity through circuit. At cathode electrons, protons and oxygen combine to form a water molecule.

Will fuel cells replace electric cars?

Because hydrogen doesn’t occur naturally, it has to be extracted, then compressed in fuel tanks. It then has to mix with oxygen in a fuel cell stack to create electricity to power the car’s motors. … That’s true to an extent, but hydrogen-powered cars are not expected to replace EVs.

Are fuel cells heavy?

Based on consultations with a variety of sources operating early prototype battery-electric trucks, they are about 7,000 to 10,000 lbs. heavier than diesel. Fuel-cell tanks will be somewhat heavier than their CNG counterparts because they are designed for much higher operating pressure.

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. … Fuel cells have strong benefits over conventional combustion-based technologies currently used in many power plants and cars.