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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Comprehensive Assessment of Energy Demand in Production of Granules for Renewable Resources Heating
 STERNBERG, Jiří
The first part of the graduation thesis deals with renewable resources, utilization possibilities of biomass and plant phytomass. The most common sources from which phytomass is obtained, are also mentioned here. A great deal of attention is paid to selected energetic plants included into the experiment. It is Sorrel Rumex OK-2 (Rumex tianschanicus x Rumex patientia) and Poppy seed (Papaver Somniferum). Further there are summarized the processes necessary for separating and pressing of biomass into granules for direct combustion. Within the research, two-year experience of growing sorrel stand is described. On the basis of performed technological operations in the stand, energy demands of growing are calculated. The real usage of energy at the production of one tonne of granules is measured. When labour costs are taken into account I can say that the expenses for the production of one tonne of briquettes from biomass would be 4 592 CZK, which is a non-competitive sum.
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Energy difficulty of pressing granules for heating from renewable resources.
 STERNBERG, Jiří
In this bachelor thesis is solved energy consumption of granular pressing for heating from renewable sources. The first part summarizes general information about biomass and its use. Special attention is devoted to the production of briquettes from chopped sorrel, from poppy and sawdust. The second part is devoted to the consumption comparison of firewood and briquettes from biomass, measurements of hour press and crusher performance and actual results of measuring energy difficulty of briquette production. In conclusion, it is stated that the production of 100 kg briquettes (as described in the specific case) is evaluated by the item for consumed energy of 42.69 CZK.
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