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ABSTRACT
Keyword: Alternate fuels
As the demand for the world’s fossil fuel increases, their price increases, interest has rightly begun to be given to the development of alternate fuel. The use of alternate fuel can meet considerable energy demand of several villages in a country, if an integrated energy system suitable to specific locations and needs are developed .The major problem of carrying energy to the remote rural communities can be solved to some extend by harnessing the available alternate fuel potential in those areas. Unlike coal, oil and natural gas, which take millions of years to form, biogas can be considered as a renewable energy source because biogas production is a daily process. This report is based on our project “DUAL FUELED ENGINE” (90%-gobar gas+10% diesel). This has been successfully implemented in our agricultural farms for Irrigation purpose. The cost factor, performance, safety, maintenance, comparison between conventional engine and dual engine have been analyzed and stated in the paper.
GAS DISTRIBUTION PIPE LINE
The gas distribution pipeline includes the gas vent pipe, gate valve, hose pipe, moisture trap, pipes, bends, joints, stop cock, pressure tube, clips, etc .In case of a fixed –dome plant, there is need to install a safety pressure gauges. Special care should be taken when laying the pipeline because biogas contains water vapors which condense in the pipeline. There should be provision for removal of water from the pipeline by means of providing a correct slope to the pipe , especially the pipe nearest the gas plant .The pipe must slope towards the moisture trap .The recommended slope is 1:100 . An improper slope in the pipeline results in the non-functioning of the plant. In a fixed-dome biogas plant, the gas pressure goes up to 900 mm water column and therefore good quality pipes must be used to avoid leakage. Hose pipe is used to join the gas holder with the pipeline. The hose pipe needs to be replaced after every one or two years.
The size of the pipe depends upon the distance between the plant and the point of use. The flame arrester should be used at the both the ends of the pipeline to prevent the back fire.