The kernel contains the nuts of chironji. Traditionally, it was removed by hand hammer, small stone or some locally available stone chakki (Jatta). These methods are very tedious, laborious and uneconomical to the farmers and result in low
quality products with higher broken kernels. To overcome this problem in processing of nut, IGKV, Raipur, design and developed a chironji nut decorticator, to remove outer shell from the nuts to get whole kernels. The machine comprises of feed
hopper, cylindrical housing, decortications unit, main frame, electric motor, grader, sieve etc. Results showed that the efficiency of machine was found to be 93.90 % and capacity was 32.82 kg/h. The whole kernels and broken percentage was obtained
at 16% and 2%, respectively. The machine is most useful to the small farmers, small entrepreneurs, self help group, tribal group etc. who are involved in decortications of chironji nut. In this method the cost of operation and time required to
decorticate is very less as compared to traditional method.
There are many inventions aimed at increasing the performance of IC engines. So most engines nowdays are employed with turbocharger and supercharger. It is known that the power outputs of an engine increases with the increase in amount of air or mixture in the cylinder and supercharger plays an important role in increasing the amount or air. Turbochargers are used throughout the automotive industry as they can enhance the output of an internal combustion (IC) engine without the need to increase its cylinder capacity. The emphasis today is to provide a feasible engineering solution to manufacturing economics and "Greener" road vehicles. It is because of these reasons that superchargers and turbochargers are now becoming more and more popular in automobile applications. The aim of this paper is to provide a review on the techniques used in supercharging and turbocharging to increase the engine output and reduce the exhaust emission levels.
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