| Popis: |
Fossil fuels are on the edge of extinction as a very less quantity of them is available now. They also have large ash content, and pollution takes place to a greater extent during combustion. So, there is a need to replace these fuels with something that has the same calorific value and causes less pollution. Biomass briquettes and pellets can be an alternative to coal. These briquettes and pellets are formed by compression of biomass that can be used as fuel. This reduces pollution and provides alternate low-cost fuel. Various machines have been developed for producing briquettes and pellets, but the cost of these machines is very high. After analyzing various machines, a machine that can make both briquettes and pellets through a single setup was not available. So, decision was made to produce a low-cost machine that can produce both briquettes as well as pellets through a single manually driven setup. The extrusion process has been used for producing briquettes and pellets, wherein the forward extrusion process was used for producing the briquettes and the backward extrusion process was used for producing pellets. Analysis, fabrication, and experimentation were carried out on fabricated briquette cum pellet machine. The objective of the experimentation was to find out the density of the briquette and pellet obtained using sawdust and aspen chips as raw material and a binder (bentonite or starch) combination. This machine can reduce farm waste into a useful product by also providing a source of livelihood. |
