Production and Characterization of Briquettes from Rice Husk for Household Cooking

Mebrat, Endalew

dc.contributor.author	Mebrat, Endalew
dc.date.accessioned	2020-03-11T10:44:48Z
dc.date.available	2020-03-11T10:44:48Z
dc.date.issued	2020-03-11
dc.identifier.uri	http://hdl.handle.net/123456789/10227
dc.description.abstract	Biomass densification and combustion is gaining popularity in the energy sector to reduce the dependency on fossil fuel and the environmental footprint of energy production. This research investigated the densification of rice husk generated from agricultural sector to use as an alternative fuel to reduce wood consumption. Rice husk is the most commonly available agricultural residues that can be utilized for the production of briquettes. It is carbonized using a locally made metal carbonization kiln and solution of calcium carbonate. Numerous experiments were conducted to investigate the effects of briquetting pressure and binder ratio (cow dung and clay) on the physicochemical properties and energy value of the briquettes. The binding agent used for the production of briquettes was extracted from cow dung and clay. From the chemical properties; rice husk has volatile matter of 32-47%, ash content of 9.5-17% and fixed carbon content of 36.5-52.5%. The heating values of rice husks were found to be 17.6-24.93MJ/kg. It was found that all the parameters considered were affecting the physicochemical properties of the briquettes mainly bulk density, burning rate, water resistance and heating value. The compressed density of the briquettes was in the range of thermal system 811.04 - 1138.32 kg/m3 and solution treatment range 591.9- 887.6kg/m3. The water boiling test experiment shows that one litter amount of water was boiled in 50 minute with corresponding maximum and minimum temperature of 97.17oC. The burning rate of the briquettes ranged from 32.16 - 76.47g/min.	en_US
dc.language.iso	en	en_US
dc.subject	Energy Center	en_US
dc.title	Production and Characterization of Briquettes from Rice Husk for Household Cooking	en_US
dc.type	Thesis	en_US