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This paper will give details of described methods for the laboratory on the examination of biomass energy pellets after they have been through the pressing and cooling process of pressed material. These methods are based on previous experiments collected through the literature. The fundamentals of these experiments are examinations of shape and dimensions, moisture content, bulk density, fine particle content, pellet attrition, ash content, and calorific value of energy pellets as they pass throughout the burning process. The examination results will contain a range of data that was gathered. It will contain evidence of physical characteristics of biomass energy pellets. A comparison of characteristics was performed on the basis of the existing literature and standards. After the comparison of the conducted examination, there will be an examination discussed with other sources or ideas formed by other international theorists. It was clear from the findings of the examination that parameters are acceptable...

This paper describes the technological process of pressing pulverized biomass and analyzed different forms and dimensions of the hole in the matrix pelleting presses depending on the type of raw material for molding. Matrices may be flat and annular, and forms openings on their conical, square, oval, and cylinder. Dimensions of the matrix along the length of the channel can be constant and variable. The opening of the mouth of the channel can be extended in order to avoid build-up of material at the entrance of the channel, i. e. to reduce the resistance of the material in the pressing. The ratio of the diameter and length of the channel to determine the degree of compression molding material. Also, the extension of the output section of the canal is intended to reduce the resistance of molding materials. Shapes and sizes of the channel on the surface of the rollers for compacting biomass depending on the type and condition of the raw material for molding. It was noted that certain types of plant material compressed differently and therefore require different structural characteristics matrix for pressing biomass.