Briquette properties after three years storage
2016
Novakova, A., Czech Univ. of Life Sciences, Prague (Czech Republic) | Brozek, M., Czech Univ. of Life Sciences, Prague (Czech Republic)
The paper presents the results of laboratory tests on the study of the influence of the storage place, placing manner and storage time on mechanical properties of briquettes made from birch chips. For production of the briquettes the briquetting press of the firm Briklis was used, type BrikStar 30-12, 50 mm pressure chamber diameter. All briquettes were made at constant adjustment of all parameters of the briquetting press. The briquette properties were evaluated by their density and rupture force determination. Moreover, the mechanical durability, gross calorific value, total moisture and the ash content were determined. By the carried out tests it was univocally proved that the mode of storage influences the briquette durability at their long-term storage. Most of all briquettes, deposited in a well closed plastic bag in a closed heated room, changed their properties during three years only minimally. Briquettes, deposited in the same place but in a plastic net bag, changed their properties much more. Briquettes, deposited in a closed unheated room, changed their properties during three years very considerably. Briquettes, deposited in a plastic net bag, changed their properties to such a degree that they were practically unusable. On the basis of the carried out tests it is possible to state that the rupture force can be recommended as the parameter of briquette quality evaluation.
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