20-12-2012, 05:15 PM
Hydrogen as a Non-Polluting Fuel
Hydrogen as a Non-Polluting Fuel.docx (Size: 63.13 KB / Downloads: 34)
Abstract
The aim of this paper is to encapsulates the use of non polluting fuels such as nitrogen, hydrogen and oxygen in order to run vehicles and for various transport activities, as now a day commonly used fuels such as petrol, diesel etc. are consuming at faster rate and may gets exhaust within no time. So in order to continue this pleasurable life we may have to develop vehicles which may run on fuels which are non polluting as well as in great amount in nature and can be renewable.
So this paper is in help to manufacture a vehicle which runs on power of hydrogen, this paper gives an idea of manufacturing a spark ignition engine which runs with the help of hydrogen and oxygen mixture, as hydrogen is highly inflammable and due to its properties it gives a large amount of power which can easily be capable to run a vehicle.
Introduction
Hydrocarbon fuels played a vital role in our life since a century ago in various kinds. However they may results in some gases products which causes harm to mankind as well as environment conditions against laws of nature, which may results in a great loss. As a result various alternative fuels are used such as CNG, LPG, Biogas etc. to substitute hydrocarbon fuels. Similar to this one of the major helpful fuel is hydrogen which has a major tendency to produce a
great amount of power without any harmful product as an emission, so hydrogen can also be used in order to replenish hydrocarbon fuels.
Cryogenic
Cryogenic is branch of engineering and chemistry that involves the study of very low temperatures, how to produce them, and how materials behave at those temperatures. It is not well defined until today that at what point of temperature scale refrigeration ends and cryogenic starts, but it assumes at a temperature lower than -1500C or 123k. The national Institute of standards and technology at, Colorado has chosen to consider the field of cryogenic below -1800C or 93.15k.
Cryogenic heat engine
It is a type of engine which works at very low temperature and uses very cold substances to convert their energy in other useful work. A very unique feature of this engine is that it operates in an environment at the peak temperature of the power cycle, hence there is always some heat input to the working fluid during the expansion process.
Liquid hydrogen
Liquid hydrogen is the colour less liquid, widely produced and most common cryogenic liquid with density of 70.85kg/cu. m. to exist as a liquid hydrogen is to maintained at a temperature of 33k known as its critical temperature, 13.3 atm its critical pressure and boiling point of 23k.
Liquid hydrogen can be stored in an insulated tank, this insulation reduces the flow of ambient heat into the stored hydrogen and hence this is necessary otherwise hydrogen at ambient temperature again converts into gas.