INVESTIGATION OF PHYSICAL-MECHANICAL PROPERTIES OF MISCANTHUS FOR THE PRODUKTION OF SYNTHETIC DIESEL FUEL
While searching for alternative energy sources, investigations of physical-mechanical properties of raw materials prepared for synthetic diesel fuel produc-tion, are of highly topical. These properties are important in the preparation of the raw material and its transportation. These properties have significant influence to raw material preparation, storage, transportation logistics, conversion technologies
and equipment selection and operation.
In this paper are presented research results of physical-mechanical properties of elephant grass (Miscanthus), prepared for synthetic diesel fuel production. There are determined physical-mechanical properties of chopped and milled elephant grass (flowing corners and a dynamic frictional coefficient).
Flow angles of investigated raw materials for synthetic diesel production dif-fered slightly. With the increasing elephant grass chaff load and velocity, the dy-namic frictional coefficient and slope angle decreases respectively. While increa-sing of grown in Lithuania, chopped by drum chopper, dried and milled by the mill elephant grass mass load from 1 to 31 N, when the movement speed velocity was of 0,022 m s-1, the dynamic friction coefficient of sliding along the wooden surface decreases from 0,969 to 0,512, plastic surface – from 0,482 to 0,317, metal surfa-ce – from 0,506 to 0,274.While increasing of grown in Lithuania, chopped by drum chopper, dried and milled by the mill elephant grass movement speed velocity from 0,022 to 0,081 m s-1, when chaff load was of 31 N, the dynamic frictional coefficient of sli-ding along the wooden surface decreased from 0,512 to 0,488, plastic surface – from 0,317 to 0,293, metal surface – from 0,274 to 0,265.
Keyword(s): Elephant grass (Miscanthus), physical-mechanical properties, dynamic fric-tional coefficient.
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Agricultural Engineering ISSN 1392-1134 / eISSN 2345-0371
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