Development and performance evaluation of hammer mill for sizing rice straw to be used as biomass [electronic resource].

Includes reference.

In many countries, massive amounts of post-harvest rice residues are eliminated through open air field burning, which presents a threat to public health and poses an environmental pollution problem. So, the overall goal of the present study is to develop knife shape and, to investigate the effect of a set of parameters during grinding rice straw on machine efficiency and bio-product quality using a hammer mill machine to produce a high quality ground rice straw and high machine efficiency with optimum cost. The hammer mill machine was evaluated under three levels of different drum speeds of 2600,3300 and 4000 rpm, four different sieve hole diameters of 3,6, 12 and 18 mm, three different number of knives (16, 24 and 32), with two knives shape (rectangle - pyramidal).

Summary in Arabic.

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