THE USE OF RENEWABLE ENERGY IN THE DRYING OF AGRICULTURAL PRODUCTS
Keywords:
drying, biodiesel, bioethanol, biogas, agrarian production, simulation modelAbstract
The paper studies modern approaches and technical means of renewable energy usage in agrarian production. Much attention is given to comparative analysis of technical and economic feasibility of using different types of renewable energy sources in post-harvest agricultural products. Drying is one of the fastest and the most effective ways of preparing grain for storage to keep its necessary properties. The level of energy usage in grain production is particularly important because it affects both the quality and cost of the final product. The process of grain drying (when humidity is at the level of 15 %) takes about 30-70 % of all energy costs of after grain harvesting. These costs are mainly related to the cost of energy resources, so the usage of renewable energy sources will be appropriate. Determination of the possibility of using the renewable energy sources for drying agricultural raw materials was carried out on the basis of computer simulation. A study demonstrated that a plant that occupies the area of 300 hectares of arable land on the basis of renewable energy sources can have a potential of 85590 kw of electricity and 4196 GJ of thermal energy. To dry 149.7 tons of grain (the percentage of grain was taken at 75 %, yielding of 40 c / ha) it is necessary to spend 1.5 % of the forecasted potential of thermal energy and 0.5 % of electric energy. The usage of renewable energy sources in agricultural production is an important strategy for the development of agrarian production in Ukraine. It is necessary to establish the rational structural and technological parameters of drying plants for biomassReferences
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