Optimum Mechanical Engineering GAT, Bangalore Page 2(SI) engine

Optimum Combustor Design For Domestic Application Using CFD Analysis 2014-15Department of Mechanical Engineering GAT, Bangalore Page 1CHAPTER 1INTRODUCTIONThe world is now facing energy crisis because of overuse of conventional fuels in automobile and power generation and various thermal applications. Imposition of emission norms by government regulating bodies to reduce environmental pollution lead to the search for cleaner burning fuel. The natural choice is a nonconventional energy sources. One of the non-conventional energy resources is a biomass. Biomass is an organic matter produced by plants, both terrestrial and aquatic and their derivatives energy from biomass can be acquired through the conversion technologies such as: direct combustion, biochemical conversion and thermo chemical conversion. Thermo chemical conversion takes two forms: gasification and liquefaction. In the recent times, gaseous fuels are gaining prominence as cleaner fuels for power generation via internal combustion engine route; the power generation package including both reciprocating engines and gas turbine machinery. Complete combustion with minimal emission is the key feature of gaseous fuels and this feature is currently being exploited the world-over for power generation purposes. Among the clean sources of fuel for power generation, natural gas has been exploited largely due to significant availability in specific locations. Similarly, there is also an impetus on using gas generated from industrial and municipal wastes, namely diluted natural gas biogas and land-fill gas. As distinct from gas generation from biological/organic wastes by biological conversion process, which is limited to non-lignaceous matter, the thermo chemical conversion route (also termed gasification) can process any solid organic matter. Recently producer gas combustor finds its application in domestic area also.The range of biomass includes agro-residues like rice husk, sugarcane trash and bagasse in compact or briquctted form. The resultant gas known as `Producer gas’ can be used for fuelling a compression ignition (Cl) engine in dual-fuel mode or a spark ignitionOptimum Combustor Design For Domestic Application Using CFD Analysis 2014-15Department of Mechanical Engineering GAT, Bangalore Page 2(SI) engine in gas alone mode. Harnessing of energy from biomass via gasification route is not only proving to be economical.


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