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The modern state of world fuel and energy complex is considered. The resources of the most widespread mineral and fossil fuels are analysed in the world and in Ukraine, the methods of their extraction are considered.
The paper is devoted to optimization technique of start-up mode of scraper conveyor. The criterion, which is selected to estimate the motion mode of the conveyor, is the root-meansquare deviation of accelerations of conveyor chain and the masses center of scrapers with chain and cargo. The optimum motion mode of system and the law of change of the driving moment, which leads dynamic loadings to minimum,...
The paper type for reasonably-shipment crush device camera, analyzes neither the process of feeding grain to the mill low productivity and determined nor its main technological parameters.
The paper offered examples of evidence-based assessment criteria for determining the components of the conditions of continuous, safe and convenient traffic, the quality control system and an example calculation of the possible resource to ensure its work on the basis of the developed methodology for evaluating the performance and development needs of the road network.
Implementation conditions postbuckling stages of straining of plastic materials taking into account properties of loading system are investigated, management with which is carried out with use of planar specimens of special design. The analysis of received conditions allows to predict the material destruction moment in any point of softening branch at partial implementation postbuckling straining...
In paper the system-design approach to management of system of machines for post harvest grain, model the separation of grain corn in current economy, determine the cause and effect relationship between the technological parts of the system.
Recommendations concerning implementation of optimum control in form of feedback are resulted. For traffic control of dynamic systems it is offered to use quasioptimum governor with addition in form of nonlinear function of type "saturation".
Efficiency of the use is well - proven cavitations of interfusion of reactive components in the reactions of feather of esterification of fats in the production of biofuel for diesel motor - vehicle and tractor engines.
There is analyzed the problem of rise of harvester efficiency . It is definite, the perspective way for rise of harvester efficiency is harvesting only top of stems with the corn for reduction of straw content. There are given the technological and technical principles for this way realization.
The way of reducing oscillations of the belt bucket elevators elements, during the transients, has been resulted by optimizing the start-up mode of the drive mechanism for the kinematic criteria. On calculation the resistance forces at scooping the material have also been taken into consideration.
The paper deals with screw feeder's mathematical model that characterizes motion of dynamics, on the base of which optimization of the motion modes is carried out. Taking into account that the moments of resistance forces change under linear law at the optimal and not optimal modes of motion, the results for theoretical investigations of dynamics of startup are demonstrated.
The article describes the creation of the logistics system in an agricultural enterprise. The paper proposes to organize the delivery of goods so that the achieved consistency for all players in the logistics system and that the total cost of development and management of material flow was minimal.
An analysis is conducted and basic dependences which give an opportunity to set deformations of polymeric tape depending on tensions are expounded, and also to take into account them during planning of machines and equipment, which carries out the wrapper bale of silage.
Anaerobic digestion (AD) is a promising option for the environmentally friendly recycling of agricultural by-products. However, overloading of the digester with sugar, starch or protein might cause inhibition of the anaerobic processes. The aim of the present project was to investigate the influence of sugar beet by products on biogas yield from a typical mixture of energy crops and animal manure...
The biotechnological process of production entomological preparation of Trichogramma consists of operations which touch the owner of Trichogramma: preparation and infection of grain; moistening of grain and interfusion; load it in boxing; receipt of butterflies and eggs of corn moth; cleaning and storage of eggs of corn moth; utilization of wastes of production and operations, which execute at breeding...
The necessity of search of fuels, able to replace oil diesel is grounded. The analogues of fuel-oil, which are made from fossil and renewable raw material, are analyzed. Their advantages and failings are considered. The estimation of technologies of their production and use is conducted.
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