الفهرس 
Abstract
Materials and methodsOnly 14 pages are availabe for public view
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Abstract
Energy is considered a very important factor directly affecting in production process and in finally costs. So, reducing the consumed energy in production operations is an important solution to infrequent energy and a very important aim to science search. Agricultural forage and fertilization pellets production is considered one of the most important operations in agricultural activities but increasing the consumed energy per production unit is a true problem demandable to solve. A disk pelleter machine was constructed and developed to produce pellets from raw mach materials with an adequate energy consumed. The developed disc pelleter was supported with a hydraulic system unit to provide the required energy for die and rolls through a hydraulic sycle for reducing energy consumed .The parameters under study were, four different rolls speeds of( 75, 100, 125 and 150 rpm), three different die entry diameters of 5.2, 5.4 and 5.6 mm, three raw material particle sizes of 1, 3 and 4 mm and four feeding rates 303, 389, 476 and 563 kg/h. Results showed that the high efficiency and maximum pellets quality were under roller speed of 125 rpm, rollers speed and die entry diameter of 5.6 mm. under which 482.16 kg/h production rate, energy of 22.54 kW.h/Mg requirement, pellets durability of 71.37% and 26.27 L.E/Mg cost per mass unit with hydraulic system which decrease the energy by 17. 5% than before development.