05.00.00 Technical science
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Description
Nigeria has the largest oil sands and bitumen resources in Africa and is one of the main leading countries in the world from the point of view of its significant potential heavy oil deposits. Research of geological and physicochemical properties confirmed that the Nigerian bitumen is an important energy source and an alternative source of hydrocarbon feedstock for the petrochemical industry. Nigeria imports black oil for the petrochemical industry and its heavy oil can act in place of this black oil. In addition, researchers have successfully established the possibility of producing electrical energy from this heavy oil. Tar sands and bitumen are able to help improve the economy of Nigeria
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Description
Economic indicators of irrigated lands deep plow (chisel) ГНЧ 06 application are con-sidered in the article. It shows extra profit reclived while cultivating crops with ГНЧ 06 appli-cation in agriculture.
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ECONOMIC FEASIBILITY OF DREDGE PUMPS WITH COMBINED WAY OF COLLECTION AND TRANSPORTATION OF PULP
DescriptionThe comparison of specific coefficients of the current dredge pumps equipped with centrifugal dredgers and the dredge complete with the ejector jet cap of im-proved design by Tsimlyanskiy Marine Engineering Plant
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EXPERIMENTAL TWO-FACTOR OPTIMIZATION OF PARAMETERS OF THE UNIVERSAL SOIL-PROCESSING INSTRUMENT
DescriptionThe article considers the problem of reforestation on of processing stations, such as coupe, gully and mountain slopes. To improve the efficiency of the planting work proposed a construction of universal soil-processing instrument (USPI), is able to form discrete planting spot in the form of spot mounding in conditions temporarily humid soil or spot area (with removal of the top layer) on drained soils with simultaneous formation of planting cup for planting of forest plantation. For assessing effectiveness of his work, there was developed an experimental sample of the USPI and conducted its field trials. During the two-factor solution of the problem of optimization of the performance of the USPI there were selected optimization criteria, namely performance, quality and economic feasibility of work instrument, as well as the varied parameters exerting the most influence. To detection the analytical dependences between these parameters, we have performed a series of nine experiments, performed the approximation of functions by polynomials of second order. The result was obtained analytical formulas characterizing the influence of the varied parameters of the USPI on the quality of his work. Also, we have found graphical surfaces response and performed a visual analysis , which allowed determining the optimal values of the varied parameters of the USPI
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EXPERIMENTAL RESEARCH OF HYDRODYNAMICS SOURCE CYLINDRICAL COLLECTORS OF HEAT EXCHANGERS
DescriptionIn this article, we represented the scheme and parameters of a pilot model of a source cylindrical collector of the heat exchanger. Influence to a field of velocities on withdrawal from a collector of various nonuniformities of submission of a cost of the heat-carrier on an input of a collector, and influence of a hydraulic resistance on withdrawal from a collector on uniform of a stream of the heat-carrier is experimentally established
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EXPERIMENTAL STUDY OF DIFFUSION OF ENZYMATIC COOKING WHEAT GRANULES
DescriptionThe article describes the process of cooking wheat granules conducted under production conditions of cooking and enzymatic cooking in laboratory conditions. It gives the values of moisture diffusion coefficients and the results of modeling the process of cooking using the equation of non-stationary diffusion method of nets for the implicit scheme. The model takes into account the changes in the moisture concentration of particles in space and time, the temperature change process and avulsion of starch outer layers
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EXPERIMENTAL RESEARCH OF ENERGY SUPPLYING SYSTEM OF APIARY BASED ON COMBINED SOLAR PLANT
DescriptionWe have presented the program, methodology and the results of the experimental research of the functioning of a complex for climate control of beehives
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Description
We have performed an experimental study of the evaporation process at a temperature of 105 ° C for the egg white model solution in distilled water to evaluate the ratio of the heat transfer coefficient from air to water ratio mass transfer to the water surface into the air by evaporation from the free surface in a forced convection. Evaporation of the solution was carried out in a Memmert oven of class Basic (Germany) equipped with forced air circulation, the control panel with a display and a temperature control device. To determine the surface temperature at which the main evaporation of water from the process solution, the experiment conducted under the same conditions by measuring the average temperature of the layer of water sample, placed in a Petri dish in an oven with a sensor - DMM Mastech M838 series. It is found that the coefficient of heat transfer from air to water almost a thousand times greater than the coefficient mass transfer from the water surface into the air
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EXPERIMENTAL ASPECTS OF THE COOKING PROCESS HIGH-QUALITY FEED GRAIN-BASED SDI
DescriptionDeveloped a technological line of preparation of high-protein feed based on soybean. The design chopper soaked soybeans, working on the proposed technology
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EXPERIMENTAL AND THEORETICAL RE-SEARCHES OF WORK OF UNIVERSAL BOAR-DLEESS PLOW TOOLS
DescriptionExperimental and theoretical researches of work of universal boardless plow tools with folding sweeps, helped to reveal defects, methods improvement of construction and tie powers resistance of soil and parameters of tools