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Hydrogen an Alternative Fuel Seminar Report

Escalating apprehension about the harmful effects of widespread use of conventional fossil fuels in vehicles, has led to vast amounts of effort and capital being directed towards researching and developing sustainable alternative energy sources. One of the most promising and abundant of these sources is hydrogen. Hydrogen is one of the energy carriers which can replace fossil fuel and can be used as fuel in an internal combustion engines and as a fuel cell in vehicles. To use hydrogen as a fuel of internal combustion engine, engine design should be considered for avoiding abnormal combustion. As a result it can improve engine efficiency, power output and reduce NOx emissions. The scope of liquid hydrogen as a replacement for conventional fuels, in comparison to other alternatives as well as gasoline. Recommendations are made on improving methods of hydrogen generation and storage, and a major drawback is observed in the fact that hydrogen requires high amounts of energy for its extraction, but the fuel itself has a low energy density.

The current energy crisis urges us to explore a variety of alternate methods to satisfy the world’s energy demands. A major market solution for the energy crisis is increasing supply and reducing demand for crude oil. By increasing the list of feasible fuel alternatives, the demand on crude oil reduces. Among all the potential environment-friendly alternative fuels of the future, hydrogen is one of the most promising in terms of practicality, long term feasibility and low pollution levels. Thus it has the capability to contribute majorly towards solving two major issues: energy security and climate change.

Hydrogen has a very low energy density when compared to gasoline. This is a disadvantage for storage, transport and safety purposes since it will need to be stored at very high pressures. In addition, hydrogen cannot be used to produce energy by combustion at temperatures below 0 0 C, since the fuel requires a higher temperature to burn. Therefore the challenge becomes storing hydrogen at extremely high pressures without drastically reducing the temperature.

Hydrogen is the cleanest fuel having a heating value three times higher than petroleum. However, being man- made fuel the hydrogen is not natural source of energy, therefore, it involves production cost, which is responsible for it is three times more cost than petroleum products.

There are still problems in the realization of the renewed hydrogen from water ,but the market supply and the cost of hydrogen do not constitute the bottleneck of hydrogen vehicles today although the hydrogen used presently may not be renewed .But , hydrogen’s excellent characters ,studying the availability of H 2 in internal combustion(IC) engines, and investigating the performance of hydrogen fuelled engines ,become one of the utmost important research directions for researchers.

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