scholarly journals THE USE OF WEED IMPURITIES AS THE MAIN HEAT-CARRIER AGENT IN THE PROCESS OF DRYING GRAIN

2020 ◽  
Author(s):  
D.N. Savenkov ◽  
◽  
O.R Kirishchiev ◽  
D.A. Kirillov
Keyword(s):  
Heat Generation ◽  
Heat Carrier ◽  
Structural Parameters ◽  
Energy Carrier ◽  
Technological Line ◽  
Grain Processing ◽  
Grain Drying

The article considers the possibility of creating a grain drying complex using weed impurities as the main energy carrier at grain processing enterprises. A technological line with selected technological and structural parameters has been developed, which is used for burning weed admixture for heat generation and its further use in the process of grain drying.

scholarly journals Application of the OEE tool as a proposed increase in productivity in grain drying systems

2020 ◽  
Vol 27 (4) ◽  
Author(s):  
Darlan Marques da Silva ◽  
Higor Marques de Oliveira
Keyword(s):  
Historical Data ◽  
Drying Process ◽  
High Moisture ◽  
Storage Unit ◽  
Grain Processing ◽  
Grain Drying ◽  
Increase In Productivity ◽  
Processing And Storage ◽  
And Storage ◽  
Made In

Abstract: Companies nowadays seek to gain advantages over their competitors by using tools that converge them to more efficient and effective processes. With this competitive scenario, the use of the Global Equipment Effectiveness (OEE) indicator has grown. In this sense, the present study aims to propose improvements in the productivity and management of the maintenance of grain drying operations, through the analysis and OEE calculations of the process. Developed in a grain processing and storage unit, the Availability, Performance and Quality indices were calculated using historical data recorded in Excel spreadsheets and analyzed in graphs. The evaluations carried indicated satisfactory performance regarding maintenance scheduling due to the high availability rates of the equipment. As for the results obtained for performance, it was possible to observe the variables influencing the productivity and to point out improvements to the process. The observations made in the scope of quality surrounded the effects that the high moisture contents of the grains cause to the drying process. In view of this, it was possible to conclude that the losses between the indexes that compose the OEE have a high correlation.

Heat Generation and Transport in the Earth

2010 ◽  
Author(s):  
Claude Jaupart ◽  
Jean-Claude Mareschal
Keyword(s):  
Heat Generation ◽  
The Earth

Optimal design of a high homogeneous and small-size shim coil for atomic spin gyroscope based on 0-1 linear programming

2020 ◽  
Vol 64 (1-4) ◽  
pp. 165-172
Author(s):  
Dongge Deng ◽  
Mingzhi Zhu ◽  
Qiang Shu ◽  
Baoxu Wang ◽  
Fei Yang
Keyword(s):  
Linear Programming ◽  
Power Consumption ◽  
Low Power ◽  
Optimization Design ◽  
Structural Parameters ◽  
Axial Position ◽  
Low Power Consumption ◽  
Optimal Method ◽  
Atomic Spin ◽  
Shim Coil

It is necessary to develop a high homogeneous, low power consumption, high frequency and small-size shim coil for high precision and low-cost atomic spin gyroscope (ASG). To provide the shim coil, a multi-objective optimization design method is proposed. All structural parameters including the wire diameter are optimized. In addition to the homogeneity, the size of optimized coil, especially the axial position and winding number, is restricted to develop the small-size shim coil with low power consumption. The 0-1 linear programming is adopted in the optimal model to conveniently describe winding distributions. The branch and bound algorithm is used to solve this model. Theoretical optimization results show that the homogeneity of the optimized shim coil is several orders of magnitudes better than the same-size solenoid. A simulation experiment is also conducted. Experimental results show that optimization results are verified, and power consumption of the optimized coil is about half of the solenoid when providing the same uniform magnetic field. This indicates that the proposed optimal method is feasible to develop shim coil for ASG.

Numerical Study of the Combined Free-Forced Convection and Mass Transfer Flow Past a Vertical Porous Plate in a Porous Medium with Heat Generation and Thermal Diffusion

2006 ◽  
Vol 11 (4) ◽  
pp. 331-343 ◽  
Author(s):  
M. S. Alam ◽  
M. M. Rahman ◽  
M. A. Samad
Keyword(s):  
Mass Transfer ◽  
Flow Field ◽  
Differential Equations ◽  
Forced Convection ◽  
Heat Generation ◽  
Numerical Study ◽  
Porous Plate ◽  
Integration Scheme ◽  
Suction Parameter ◽  
Transfer Flow

The problem of combined free-forced convection and mass transfer flow over a vertical porous flat plate, in presence of heat generation and thermaldiffusion, is studied numerically. The non-linear partial differential equations and their boundary conditions, describing the problem under consideration, are transformed into a system of ordinary differential equations by using usual similarity transformations. This system is solved numerically by applying Nachtsheim-Swigert shooting iteration technique together with Runge-Kutta sixth order integration scheme. The effects of suction parameter, heat generation parameter and Soret number are examined on the flow field of a hydrogen-air mixture as a non-chemical reacting fluid pair. The analysis of the obtained results showed that the flow field is significantly influenced by these parameters.

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