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Design Natural Gas Powered Vehicles
History of natural gas powered vehicles (Hydrogen gas vehicles)
The world is adapting to technologies that are environmental friendly. This is in line with mitigating climate change and effects of global warming. Hydrogen vehicles use hydrogen instead of fossil fuels for their motive power. Examples of vehicles that use hydrogen include automobiles, space rockets and other vehicles used for transportation services.
Natural gas is the widely used clean energy that is found within our environments (Field 6). It is used in generation of electricity and manufacturing of chemical fertilizers. The gas is one of the second cheapest alternatives that can be used in the fueling of vehicles. However, the low lumber of vehicles that use the gas is a clear indication of the fact that the gas cannot replace gasoline, which is widely used in vehicles, and other machines that run under energy.
Natural gas has been used for transportation needs for decades. It is a non-renewable source of energy and environmentally friendly. The gas is one of the best alternative fuels in this era, where manufacturing of traditional forms of energy is expensive and in short supply. The energy crises and oil shortage experienced in 1960s and 1970s provided a shift in the manufacture of hydrocarbon gas vehicles.
Natural gas vehicles are dated back as early as 1930s. These vehicles propelled on manufactured natural gas. However, crude oil that was invented caused production of natural gases to go down. In America, these vehicles did not disappear as experienced in other countries. The standards of vehicles operating on natural gas were similar to those that operated on gasoline. However, for the purpose of market conversions, vehicles were designed to operate both on gasoline and on natural gas. The natural gas vehicles used space-saving compressed natural gas that was stored in fiberglass which was protected, in the composite metal that acted as a storage tank. This has evolved and now small and lighter weight and safer models are now manufactured. After recovering from the cold war in early 1970s and 1980s, the United States embarked on importation of oil rather than on development of the new energy (Darley 26). This increase reliance on alternative sources of energy had negative impacts on the global environment and was instrumental to the subsequent economic crisis that marred United States. In 1980s, the U.S was still evaluating its possibilities of using natural gas in its vehicles as an alternative source of fuel.
At the heel of gulf war in 1993, the revised clean air act of 1990 and energy policy act of 1992 was not implemented by the U.S automakers. The reasons for their failure to implement it were because millions of U.S roads operated on natural gas and due to customer’s preferences and the potentiality of decrease in profitability. These reasons contributed to many U.S companies failing to produce natural gas vehicles. However, the fuel car-pilot program conducted in California resulted into positive results. Many people in California adopted the decisions and this has seen many vehicles in California run on natural gases. The impact has been positive as the rate of pollution has decreased and even earned California as the state with the least effects of environmental pollution.
The number of vehicles that operate on natural gas has been increasing over the years, but in small percentage. For instance, currently, it is estimated that almost nine million vehicles in the world use natural gases while it is estimated that approximately 130000 vehicles use natural gases in the U.S. There are around 1200 natural gas filing stations. Therefore, it is a small percentage of the total number of vehicles that use natural vehicles compared to those that use alternative fuels. Natural gas is used in a variety of vehicles including personal cars, passenger vehicles, forklifts, busies, heavy-duty trucks, commercial fleets and taxies among many others. Natural gas is considered as safer form of energy compared to gasoline because of its smaller range of flammability and higher ignition range. Further, it is not toxic or corrosive hence cannot contaminate ground water.
It is important to note that the amount of carbon dioxide present in natural gas is less compared to that found in the gasoline. For instance, natural gas emits 20 percent less green gas emissions compared to other forms of energy such as gasoline vehicles. This explains the reason why the gas has fewer effects on environment. It means that if these vehicles were increased in their production, the world would reduce its total green gas emissions on the environment hence the effects of global warming that cause climate change would not arise. The future generation would be guaranteed a safer and cleaner future.
However, despite the great potential to replace dependency on petroleum products in America, many consumers have not expressed any willingness to switch from depending on petroleum products. For instance, in the recent years, companies manufacturing vehicles such as General motors and Ford have relinquished their plans of manufacturing natural gas vehicles, but instead focus on manufacture of hybrid and related technologies. However, few companies such as Honda still design natural gas vehicle but at a slow pace. These developments are clear indications that indeed these natural gas vehicles are not a priority in various countries (Cannon 65).
Modern energy crises continuously being experienced in America may however trigger initiatives of the government to rethink about these new technologies to ensure that there is adequate supply of energy. Reports indicate that natural gas reserve in America can last for about 60 years. This is a very good investment, as it will help to liberate the country from fuel shortages. The country will also have to benefit from improved environment because the rate of emissions will decrease drastically.
Types of gas vehicles
Various types of vehicles operate on hydrocarbon gases. These include trains, buses, PHB bicycles, golf carts, canal boats, ships, wheelchairs, motorcycles, airplanes, rockets, submarines, among many others.
Buses
Buses are normally larger and have a big sitting capacity. The fuel cell buses are under testing by various manufactures in different countries. They are seeking to find out whether these buses can operate under this natural gas. The first buses to operate on these gasses had hydrogen stored in the mounted tanks in the roofs. Others incorporated on boards tanks, while in double-decked buses models it was stored between the floor tanks.
Bicycles
There are various designs of bicycles that can be manufactured and which are able to operate on hydrogen carbon gas. One of the bicycles built to operate on the natural gas pearl hydrogen power sources was manufactured in Shanghai China. The bicycle was availed in 2007 during the ninth China international exhibition of gas technology.
Motorcycles and scooters
These are manufactured by ENV and are powered by a hydrogen fuel cell. Companies such as Vectrix are still working to manufacture scooters and so far, some of them have been made from hydrogen, which include FHybrid and Suzuki Burgman fuel cell scooter. The European Union approved Burgman and therefore it has been found viable and can be produced in larger scale.
Airplanes
The use of hydrogen fuel is also under testing in many aviation companies. Companies such as Boeing, German aerospace center and Lange aviation have indicated or tried to purse hydrogen in their unmanned and manned airplanes. For instance, Boeing Company tested an aircraft powered by hydrogen fuel cell in 2008. Furthermore, various testes have been conducted on the unmanned airplanes in various countries. Experts in the field of aviations have explained or expressed their opinions that these hydrogen fuel cells are not appropriate for larger airplanes because they cannot power the engines. However, they could be used as auxiliary power units of back onboard.
A phantom eye UAV was unveiled in July 2010 by Boeing that used two-fold internal combustion engines, which later were converted to operate on the hydrogen. Even though the application of use of hydrogen is not permissible on larger jets, there is substantial evidence that indeed hydrocarbon gases can be applied in aviation. More or further researches need to be conducted to ensure that satisfactory evidence or results are found to ensure that future aero planes can be manufactured using this cheap, available and clean form of fuel (Field 6)
Fork trucks
Fork trucks or forklifts are used to lift or transport materials from one point to another. These lifts are powered by internal combustion engine that is hydrogen fuels that helps or provides power for the forklift to move from one point to another. The tank-hydrogen is filled with an average of 26 litres of hydrogen at a pressure of 350 bar. This pressure helps the folk to move from one place to another.
Rockets
Rockets are other area that uses hydrogen in their movement. Liquid hydrogen is used in these rockets. The major advantage why hydrogen in rocket fuels is preferred in rockets is because they have a very high and effective exhaust velocity when compared to other forms of energy such as kerosene.
People’s contribution to enhance the vehicles
Hydrogen gas has elicited debate in various quarters of the society with some quarters supporting the move, while other opposing it. Those who support its use in vehicles cite the reasons such as environmental conservation through reduced emissions. It is one of the cleanest sources of engine and this will ensure that environment is clean and remains carbon dioxide free. Secondly, this form of energy is not difficulty to process as the costs involved is manageable. Third, it is easily available. It can be harnessed for our environment hence its benefits.
However, there are mixed reactions that have marred this debate. For instance, the Obama administration reduced the amount of funding that was required to support the extraction of this natural gas and in the development of fuel cells vehicles (Motavalli para. 6). The argument for reduction in its funding was because new emerging technologies were more favorable and would help in reduction of emissions in a very short period. Therefore, by not providing funding, the government was not willing to promote its production.
Furthermore, the U.S secretary of energy Steven Chu noted in his statements in 2009 that there was no way that hydrogen vehicles were going to be practical in the coming 10 to 20 years. However, he agreed that this fuel cell were more economical feasible just as natural gas prices had decreased and hydrogen forming technologies had improved (Woodyard para. 3). Washington post is also remembered to have send a post claiming that hydrogen vehicles were not the right option to gas (Motavalli para. 6). This is because, it is not practical to store energy in form of hydrogen and then use the hydrogen to produce electricity. Hydrogen cannot be commercialized because most people use their electricity in their homes and other appliances. Further, there are other alternative sources of energy that were popular and convenience to use.
A study that was published in the Journal of Power Sources UVC Davis in December 2009 revealed that hydrogen vehicles would emit high amounts of hydrogen as opposed to gasoline vehicles over time. Furthermore, in 2011, the General Motors CEO Akerson Daniel stated that the cost of purchasing the hydrogen fuel cars is reducing and such kind of a crisis is still expensive and therefore still not in reach of a poor person until 2020 and the years to come (Cannon 65). The views suggest that the idea of exploitation of natural gas is far beyond reach.
Furthermore, it was established through the Wall Street journals reports of 2008 that top management from various companies: Toyota Motor Corp and General Motors had expressed doubts about their continual participation in the production of such cars or motor vehicles. However, other companies in the industry are still determined to keep on with their production for the hope of the market shifts. The journal also suggested that this form of energy is the best because it reduces the amount of fuel used to purchase paraffin that is used in the lamps and for cooking. Furthermore, embarking on such form of energy will have to cut or reduce the level of emissions to the environment. Therefore, this guarantees that there is safe environments to ensure that sustainability is enhanced (Cannon 65). Former U.S department of energy official Romm expressed his fear of adoption of hydrogen gas because it was not the safe way to ensure that greenhouse gases reduced. It is one of the most expensive ways of ensuring that these effects are minimized
Therefore, various people have different inclination on adoption of hydrogen gas or natural gas in their motor vehicles. The mixed reaction is because of the different thinking and perceived benefit cost ration of natural gas. Those opposed perceive that natural gas is less important and should not be exploited. However, those in support argue that its adoption will help in environmental conservation and reduce costs involved in its production. Either the way, I believe that natural gas vehicles would have impacted positively on our environment and therefore, governments should consider revisiting their stances on its extraction.
Works Cited
Cannon, James. Paving the Way to Natural Gas Vehicles. New York, NY: Inform, Inc (1993).
Darley, Julian. High Noon for Natural Gas: The New Energy Crisis. White River Junction, VT: Chelsea Green Publishing Company (2005).
Field, Alan. New, more efficient technologies make LNG-powered trucks competitive with diesel, Canadian Sailings, (2001): 6-38. Print.
Motavalli, Jim. “Cheap Natural Gas Prompts Energy Department to Soften Its Line on Fuel Cells”, The New York Times, 29 May 2012
Matthew, Wald. U.S. Drops Research Into Fuel Cells for Cars, New York Times, Web. 9.5.2009.
Woodyard, Chris. “Natural-gas powered cars: Who even knows they exist?” USA Today. May 9, 2007. Accessed: November 2, 2012.
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