This question was originally answered on quora by michael barnard. Using an energy carrier that is carbon free which hydrogen. Therefore, the advantages of the hydrogen economy include. If we ran out of fossil fuels we would no longer be able to produce hydrogen energy. Guide essay buying guide guide avoiding essay scams free apa referencing tool free harvard referencing tool. Pdf an overview of hydrogen as a vehicle fuel researchgate. What advantages do battery packs have over hydrogen fuel. Hydrogen has three basic benefits that address these concerns. Why battery packs are winning over hydrogen fuel cells. Articles advantages and disadvantages of hydrogen peroxide use. While many of the advantages of hydrogen fuel are clear, the disadvantages must be noted as well. What are the pros and cons of using hydrogen to generate.
Covers the advantages and gives details of each of the advantages. A fuel cell is a device that generates electricity by a chemical reaction. Because it is such a high energy resource, nasa has used liquid hydrogen as a fuel since the 1970s. The disadvantages and advantages of hydrogen fuel cells show us that it can be a versatile fuel option for many industries. Hydrogen as an energy carrier koninklijke vlaamse academie van. High efficiency when utilizing cogeneration, fuel cells can attain over 80% energy efficiency. Fuel cell seminar report with ppt and pdf study mafia. Cars that are blends with fuel cells and gasoline will never have to worry about being stranded. Every fuel cell has two electrodes, one positive and one negative, called, respectively, the anode and cathode. Fuel cells are considered to be future energy and a very promising technology. Currently, it still costs a considerable amount of money to run a hydrogen vehicle because it takes a large amount of energy to liquefy the fuel. Because hydrogen fuel cells are an emission free fuel source, are more efficient than current fossil fuel sources, and have the possibility to create a diversified energy economy, more investments need to be made in this budding technology. Download table advantages and disadvantages of hydrogen as a fuel for fcvs from publication. Why battery packs are winning over hydrogen fuel cells for both cars and energy.
Hydrogen vehicles are available commercially in several countries, and 225 000 fuel cell home heating systems have been sold. Apr 24, 2017 in recent years, several options have emerged for powering car without using fossil fuels. Advantages of hydrogen power vehicles that run on hydrogen fuel are environmental friendly i. Ammoniaa renewable fuel made from sun, air, and watercould power the globe without carbon. Oct 20, 2016 hydrogen h2 is extremely useful, and in other ways besides use in fuel. Research is being carried out into the use of hydrogen, instead of diesel, as a fuel for buses. Fuel cells combine a fuel usual hydrogen in some form with an oxidizing agent usually oxygen. Afcs have been used in the us space program since the 1960s to produce electricity and fresh water for spacecraft. The main sources of fuels are coal and petroleum oils etc. If these goals are met, hydrogen fueled cars can provide a relatively clean, pollution free method of transportation. Hydrogen fuel cells the fuel of the future environmental.
Available and renewable one of the biggest reasons that hydrogen is such a great choice for power is because of the abundance of it. Now we are looking at the advantages and disadvantages of hydrogen fuel cells to see if they would be useful in other vehicles or situations. Fuel cells have a higher efficiency than diesel or gas engines. Electrolysis of water is deemed to be the cleanest route tothe production of hydrogen. Hydrogen fuel can provide motive power for liquidpropellant rockets, cars, trains, boats and airplanes, portable fuel cell applications or stationary fuel cell applications, which can power an electric motor. If hydrogen is used an emission free fuel, its role is that of a secondary energy. It holds promise for growth in both the stationary and transportation energy sectors. Currently hydrogen fuel is made from nonrenewable natural gas in a process that creates enormous co2 emissions. In fact, hydrogen is the most abundant element on earth. This page contains fuel cell seminar and ppt with pdf report. Extraction of the energy proton exchange membrane fuel. Let us hope that this fuel would soon be used in our households in an economical manner over the coming years. Hydrogen can be produced from carbon free or carbonneutral energy sources or from fossil fuels with co2 capture and. The advantages and disadvantages of alternative fuels are debated in the editorial pages of major newspapers in the united states and worldwide every day.
Pros and cons of alternative fuels consumer reports. Dec 16, 2019 11 big advantages and disadvantages of hydrogen fuel cells dec 16, 2019 jun 4, 2015 by green garage hydrogen is an environmentally friendly alternative to fossil fuels, and they can be used to power just about any machine needing energy. It would require high levels of research investment and continued innovation in existing sectors for it to become an affordable option for everyone. This electricity can be used to power vehicles, as a heat source and for many other uses. The reactions that produce electricity take place at the electrodes. These fuel cells offer a better overall fuel economy. It is also a fuel option that comes with its own unique set of risks. Interestingly enough, hydrogen doesnt actually occur naturally on our planet as a gas. If the earth is really going to run out of coal, oil and gas in the years to come, what are the leading candidates for shepherding world society into a new, alternative energy economy.
The burning of hydrocarbons contribute to the green house effect and other environmental issues such as acid rain, destruction of natural areas such as the rain forest in search of more oilfossil fuel deposits. Advantages and disadvantages of hydrogen as a fuel for fcvs. Based on the current researches it certainly looks like the main disadvantage of hydrogen as the clean fuel, namely the hydrogen production, is one obstacle that science should overcome in years to come. Despite the expectations the truth is that the fuel cells present advantages and disadvantages from their use and even in the manufacture. Hydrogen fuel cell definition, production, advantages. Proton exchange membrane fuel cells pemfc jens oluf jensen summer school on materials for the hydrogen society, reykjavik, june 19. Natural gas methane, or ch 4 is the source of 95 percent of u. Hydrogen can be produced from carbonfree or carbonneutral energy sources or from fossil fuels with co2 capture and. More detailed information is available in the applications section, which offers information specific to each industry. Hydrogen can be produced from diverse domestic resources with the potential for nearzero greenhouse gas emissions. The biggest challenge not how to use it, store it, transport it, etc. When hydrogen is burned, the only emission it makes is water vapor, so a key advantage of hydrogen is that when burned, carbon dioxide co2 is not produced. Other fuel sources such as hydrogen would require the creation of distribution networks and technology with accompanying establishment costs. What are the disadvantages of burning hydrogen answers.
Advantages and disadvantages of hydrogen peroxide use. What are the cons and pros of using hydrogen to generate electricity. The first alcohol fuel in japan began with gaiax in 1999. Hydrogen fuel cell hfc technology offers a clean and reliable alternative energy source to customers in a growing number of applications electric vehicles including forklifts, delivery vans and cars, primary and backup power for a variety of commercial, industrial and residential buildings, and more futuristicsounding applications like drones and mobile phone recharging. Hydrogen use objectives at the completion of this module, the technician will understand. Therefore, the size of a gasoline tank is three times less the amount, compared to a liquid hydrogen tank.
In the hydrogen fuel cell, hydrogen and oxygen react to form water as a byproduct. Hydrogen as an alternative fuel for transportation energianews. This work presents a perspective on the production and use of hydrogen as an automotive fuel. It can be extracted from natural gas or water and is present in a number of other chemical. Safety depends on the applied concentration, because hydrogen peroxide is completely water soluble. Contrary to other chemical substances, hydrogen peroxide does not produce residues or gasses. Along with hybridelectric and allelectric vehicles, hydrogen fuel cell systems are a popular subject of discussion. What are the advantages of using hydrogen as a fuel. As such hydrogen has an important role in the future as a replacement for imported petroleum, used currently in cars and trucks, but it has the following disadvantages 1 although hydrogen cells are being used to power hybrid cars, its still not a feasible source of fuel for everyone. According to a 2002 analysis for the national renewable energy laboratory by dale simbeck and elaine chang, the cost of producing and. Pdf biofuels from vegetable oils as alternative fuels.
Jun 03, 2012 if truth be told, there are very minor disadvantages of liquid hydrogen that can be easily improved as the years go on. This means that if a car is fueled by hydrogen, it can go farther than a vehicle loaded with the same amount of fuel but using a more traditional source of energy. Hydrogen production technologies the hydrogen economy. This is due to hydrogen s low molecular mass and high combustion temperature. Fossil fuels are still needed in order to separate the atoms of the hydrogen and oxygen and actually generate hydrogen fuel, fossil fuels are needed. Hydrogen is expensive to produce and not widely available. The role of hydrogen and fuel cells in the global energy system. For hydrogen fuel cells, there is a potential risk of flammability and liquid hydrogen can cause freeze burns, but the other risks are not as severe.
Nov 10, 2012 hydrogen as a fuel has a extremely high btu value, does not emit nitrogen or sulfur oxides and burns very hot. Jul 27, 2018 get 2 months of skillshare for free using this link. Dec 10, 2011 card sort on the advantages of fuel cells, as opposed to conventional batteriews and fuel used within a car. The core of the research concerns the advantages of hydrogen and the current progress related to the disadvantages of hydrogen as a transportation fuel. The alkaline fuel cell afc is a very efficient fuel cell that requires pure hydrogen fuel and pure oxygen. Pdf introduction the two most important environmental hazards faced by. If truth be told, there are very minor disadvantages of liquid hydrogen that can be easily improved as the years go on. The disadvantages and advantages of hydrogen fuel cells show us that the emission free nature of this technology is worth a closer look. And if that wasnt enough, hydrogen fuel is about three times more efficient than gasoline source. Benefits and disadvantages fuel cells university of. The main disadvantage is its extremely low density. Negm and others published biofuels from vegetable oils as alternative fuels.
That means it is also the most plentiful element that we know of in the universe today. Yeah, hydrogen is here, but it is all bound up with other atoms. A comparison of hydrogen and propane fuels deflagration and detonation during combustion, flames can propagate through a flammable fuel air mixture as either a deflagration or a detonation, depending on a complex interaction among factors such as the composition of the gas mixture, the ignition source and energy, the geometry. Hydrogen and fuel cells have arguably suffered a lost decade after high. Thus we discussed hydrogen fuel and its importance and uses for the common man. Once produced, hydrogen generates electrical power in a fuel cell, emitting only water vapor and warm air. Students can work as a pair or alone to work out the answers. The advantages of using hydrogen fuel cells are that they are an alternative fuel to fossil fuels, like coal, oil and gas. Hydrogen power technology advantages and disadvantages. Ammoniaa renewable fuel made from sun, air, and water. The elimination of pollution caused by fossil fuels when hydrogen is used in a fuel cell to create power, it is a completely clean technology. This means h2 is an inefficient use of energy and will never be a serious fuel. Because gaiax was not gasoline, it was a tax free object of the gas tax of japan. I made an off hand comment about adding efficiencies in the vid.
There is no worry about running out of hydrogen anytime soon, unlike fossil fuels and. Hydrogen fuel cells can be produced from renewable resources, such as solar energy or water. On burning hydrogen, it emits only water vapour, when hydrogen is burned it does not produce carbon dioxide. One of the most heralded benefits of hydrogen is that it is a cleanburning fuel. However, as a result, the use of gaiax came to be considered an act of smuggling in japan by the government. A lot of the currently available fuel cell technology is in the prototype stage and not yet validated. Mar 28, 2020 to be considered truly pollution free, the hydrogen needs to be extracted from sources other than natural gas, and the power used to perform the process should also renewable. Hydrogen h2 is extremely useful, and in other ways besides use in fuel.
Businesses that operate within the fossil fuel industry also receive subsidies so that they can continue providing energy products to consumers at reasonable costs. The problems of using hydrogen fuel in cars arise from the fact that hydrogen is difficult to store in either a high pressure tank or a cryogenic tank. There are also no environmental dangers like oil spills to worry about with hydrogen. The hype about hydrogen issues in science and technology. The usage of hydrogen and fuel cell technologies will affect. As a result, hydrogen is a much better fuel for the environment. Lack of infrastructure to support the distribution of hydrogen. Hydrogen energy and fuel cells european commission.
The role of hydrogen and fuel cells in the global energy. The picture that emerges is one of qualified promise. The announcement of a hydrogen fuel initiative in the presidents 2003 state of the union speech subst. It uses an aqueous waterbased electrolyte solution of potassium hydroxide koh in a porous stabilized matrix. If you are thinking about purchasing a vehicle of this type, speak to the manufacturer of the disadvantages of hydrogen fuel cells. Very thin membranes increase flux but they are harder to fabricate defectfree. A comparison of hydrogen and propane fuels brochure. Alternative fuels is a name given to a specific group of fuel sources in 1992 by the united states department of energy. Advantages and disadvantages of fuel cells lorecentral. Although some of the fuel cells attributes are only valid for some applications, most advantages are more general. Compared to diesel or gas, hydrogen is much more fuel efficient as it can produce more energy per pound of fuel.
Hydrogen fuel advantages and disadvantages renewables. Benefits of the hydrogen economy hydrogen energy center. However, the advantages of this proposed hydrogen economy is dependent on the use of clean, renewable resources as the source of electricity. But in this case, only, the availability of hydrogen as a chemical raw material is dominant. The refueling of the battery systems can also take several hours, rather than a few minutes with a conventional vehicle cv. Clearly, hydrogen is less of a pollutant in the air because it omits little tail pipe pollution. Jul 19, 2017 as such hydrogen has an important role in the future as a replacement for imported petroleum, used currently in cars and trucks, but it has the following disadvantages 1 although hydrogen cells are being used to power hybrid cars, its still not a feasible source of fuel for everyone. If youre fueling a rocket, hydrogen is the most efficient chemical rocket fuel. Hydrogen fuel cell engines and related technologies. Whereas coal, fossil fuels, and other energy sources create greenhouse gases such as carbon dioxide, hydrogen combustion results solely in heat and water. Fuel of the future rachel chamousis abstract hydrogen is an energy carrier that can transform our fossilfuel dependent economy into a hydrogen economy, which can provide an emissions free transportation fuel. Pdf advantages and disadvantages of diesel single and dual. Discuss the advantages and disadvantages of using hydrogen, rather than diesel, as a fuel for buses. One of the primary advantages of hydrogen as a fuel is its abundance.
Expensive to manufacture due the high cost of catalysts platinum lack of infrastructure to support the distribution of hydrogen. What are the advantages and disadvantages of this hydrogen. Hydrogen is the simplest element because it consists of a single electron and proton. Fuel cells have various advantages compared to conventional power sources, such as internal combustion engines or batteries. Table 5 advantages and disadvantages of compression technologies. The advantages and disadvantages of the candidate fuel cell systems and the various fuels are. When hydrogen is combined with oxygen in a fuel cell, energy in the form of electricity is produced. Also, burning or reacting hydrogen with oxygen runs electric motors and.
Fuels and earth science sixmark questions sample exam. Gaiax was developed in south korea, and imported by japan. Producing hydrogen fuel cells doesnt release pollution either, provided that renewable sources such as water or solar energy are used in the production process. There is no worry about running out of hydrogen anytime soon, unlike fossil fuels and other non renewable resources. Size reduction fuel cells are significantly lighter and more compact. Before wide scale use of hydrogen fuel can be accomplished, key. Transitions to alternative transportation technologies. Hydrogen has been hailed as the key to a clean energy future primarily because it can be produced from. However, hydrogen has both distinct advantages and disadvantages as a fuel. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. The overall energy efficiency of the steam ch 4 reforming process the ratio of the energy in the hydrogen output to the energy in the natural gas fuel input is about 70 percent. Hydrogen fuel cells can be produced without emissions. Electrical current is produced when electrons are freed during the process, which is clean, quiet, and more efficient than burning fuels.
High level group on hydrogen and fuel cells technologies 32 annex ii high level group on hydrogen and fuel cells technologies. Advantages and disadvantages find, read and cite all the research you need on. Sherpas 33 08 hydrogen energy and fuel cells a vision of our future contents rain clouds gather a sustainable hydrogen economy for transport. It is usually made of an asbestosbased material, and tends to break apart above 176. This completely defeats the purpose of an alternative energy source. Advantages and disadvantages of diesel single and dual fuel engines. Many governments tend to subsidize the price of fossil fuels instead of letting the free market govern what they tend to be. Fuel cell seminar report with ppt and pdf parts of fuel cells there are 4 main parts anode cathode catalyst proton exchange membrane types of. So what are the advantages and disadvantages of the. The advantages and disadvantages of liquid hydrogen liquid. Types of alternative fuels include biodiesel, electricity, methanol and ethanol, hydrogen, natural gas, propane and new fuels still under development, called emerging fuels. Get an answer for what are the advantages of fuel cells. What are the advantages and disadvantages of using. Government policy will be briefly referenced, but not detailed.
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