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Kuro briketų iš biomasės mišinio tyrimasThe main purpose of the article is to provide necessary information about the energy production from the heat processed agricultural wastes. There are described ways of solid biomass and recovered standardized firings use such as fuels for heat power equipment. In the framework of research project, six analyses of selected mixed wastes were done, especially in briquettes. Each analyze was followed by stoichiometric calculations as well as chemical composition and energy balance. All of the assorted fuels from the agricultural wastes have different structural parameters. It is mostly caused by different concentrations of particle composition. Presence of water content and ash matter are resulting from the elementary analysis and negatively influence the stoichiometric calculations. According to the results, the most important factors are sulfur, nitrogen and chlorine quantity in wastes, because of their influence to the final values of emissive concentrations. Main task of current activities at the research field is to set ways to decrease air pollutionVytauto Didžiojo universitetasŽemės ūkio akademij

Effects of Temperature and Pressure on Hemp Oil Filtration Parameters and Peroxide Number

This article focuses on the quality of hemp oil processing, specifically the filtration that is an important part of the technological procedure of processing vegetable oils. The aim of the research was to determine the effects of pressure and temperature on the filtration parameters when using plate filters. The research was carried out on an experimental measuring device with adjustable static pressure. The qualitative properties of the oil were observed in terms of analytical composition, microbial content, and changes in peroxide value as the indicator of oxidation stability. The change in pressure affected the oil flow rate, especially at lower pressure values. The increase in temperature of the filtered oil had a negative impact on the oxidation stability