Good combustion materials from rice straw / [electronic resource].

Year book of Misr Society of Agricultural Engineering : The 20 th. Annual Conference of the Misr Society of Agricultural Engineering "Agricultural Engineering and Country Challenges"

Includes references.

This study was carried out to produce briquettes from mixtures of rice straw that have a good combustion. Four mixtures were carried out to increase the organic component for rice straw according to the chemical analysis of rice straw. and additive materials. The mixture was rice straw (RS) grinded only. The 2nd mixture was RS and sugar cane molasses (M) of 25% weight basis. The 3rd mixture was RS and Poultry manure (PM) by ratio of I: I weight bases and M (25% weight basis). The 4th mixture was RS and livestock dung (LD) by ratio of 1: 1 weight basis and M (25% weight basis). The formation pressure 5, 10 and 15 MPa were used to make the briquettes ofrice straw mixtures at moisture content of 7-8%. Weight of briquettes was 30 grams for all briquettes in this study. The combustion apparatus was calibrated and used to measure the heat content and combustion duration for raw material and briquettes. The obtained data showed that the lowest value of heat content was 6.35 MJ/kg for raw material of rice straw. The max. values of heat content of 18. 7 MJ/kg for briquettes of the 3rd mixture follow by heat content of the 4th mixture was 16.3 MJ/kg. The mean values of combustion duration (min.) increases with the increase of the formation pressure of briquettes in each mixture.

Summary in Arabic