Template-Type: ReDIF-Article 1.0 Author-Name: Mohammed Gana Yisa Author-Name: Adeshina Fadeyibi Author-Name: O.I.O. Adisa Author-Workplace-Name: Department of Food, Agricultural and Biological Engineering, Kwara State University, Malete, Nigeria Author-Name: Kehinde Peter Alabi Author-Workplace-Name: Department of Food, Agricultural and Biological Engineering, Kwara State University, Malete, Nigeria Title: Finite element simulation of temperature variation in grain metal silo Abstract: This research was conducted to study temperature variation in grain metal silo using Finite Element Method (FEM). A mathematical model was developed, based on conductive heat transfer expressed in Poisson and Laplace Differential models, by discretising the actual temperature variation at 8 hours storage interval for 153 days (May to September). The temperature variations were measured from specified radii (0, 3.25 m and 8.25 m) and at depth of 1.2 m from the base of the grain silo. The results of the simulation were compared with the ambient and measured values, and this agreed with each other. The pattern of temperature at the depth of 1.2 m from the radii of the metal silo did not differ from each other. This may imply that the silo will need aeration at an interval of 8 hours to curtail excessive heat build-up that may lead to deterioration of stored grains and possible structural failure. Keywords: finite element, simulation, modelling, temperature variation, grain metal silo Journal: Research in Agricultural Engineering Pages: 107-114 Volume: 64 Issue: 3 Year: 2018 DOI: 10.17221/101/2016-RAE File-URL: http://rae.agriculturejournals.cz/doi/10.17221/101/2016-RAE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/rae-201803-0001.txt Handle: RePEc:caa:jnlrae:v:64:y:2018:i:3:id:101-2016-RAE Template-Type: ReDIF-Article 1.0 Author-Name: Vladimir Shepelev Author-Workplace-Name: Department of road transport, Faculty of Automobile and Tractor, South Ural State University, Chelyabinsk, Russia Author-Name: Sergey Shepelev Author-Workplace-Name: Department of Machine-Tractor Fleet Operation, South Ural State Agrarian University, Chelyabinsk, Russia Author-Name: Zlata Almetova Author-Workplace-Name: Department of road transport, Faculty of Automobile and Tractor, South Ural State University, Chelyabinsk, Russia Title: Method of justification of the grain cleaning assembly performance Abstract: The performance potential of the existing grain cleaning assemblies meant for nominal and stable gross grain flow in view of the agrotechnical harvest time is not realized to the full extent. It is preconditioned by the instability of the technical and technological parameters of the harvesting processes. It results in a disproportion between the harvesting and the grain cleaning process, which is manifested in accumulation of bulks of grains within open areas in uncontrolled conditions or preconditions over-estimation of the rated performance of the grain cleaning assemblies. Their required performance can be decreased and the alignment of functioning of the process system can be increased by introduction of compensating and back-up components in view of the seasonal and daily performance indicators of the combine harvesters. Keywords: service life of combines, performance, combine harvesters, harvesting process, grain flow rate, grain moisture content, storage hopper Journal: Research in Agricultural Engineering Pages: 115-120 Volume: 64 Issue: 3 Year: 2018 DOI: 10.17221/14/2017-RAE File-URL: http://rae.agriculturejournals.cz/doi/10.17221/14/2017-RAE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/rae-201803-0002.txt Handle: RePEc:caa:jnlrae:v:64:y:2018:i:3:id:14-2017-RAE Template-Type: ReDIF-Article 1.0 Author-Name: János Jóvér Author-Workplace-Name: Department of Water- and Environmental Management, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, Hungary Author-Name: Károly Antal Author-Workplace-Name: University of Debrecen Centre of Agricultural Sciences, Research Institute of Karcag, Karcag, Hungary Author-Name: József Zsembeli Author-Workplace-Name: University of Debrecen Centre of Agricultural Sciences, Research Institute of Karcag, Karcag, Hungary Author-Name: Lajos Blaskó Author-Workplace-Name: Department of Water- and Environmental Management, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, Hungary Author-Name: János Tamás Author-Workplace-Name: Department of Water- and Environmental Management, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, Hungary Title: Assessment of gross calorific value of crop and bio-energy residues Abstract: This study assessed the gross calorific values (GCV) of crop and bio-energy residues. In addition, it assessed the calorific values of sweet sorghum to clarify its potential as energy crop in the region. Furthermore, it statistically analysed the ash remaining after burning three bio-energy residues, bagasse, oil cakes and fermented sludge of biogas production, to identify their potential for agricultural use. Finally, the study calculated alkali content based on nutrient content and GCVs. Significant differences were found among the GCVs of the investigated materials. Among the crop residues, the least significant difference (LSD) (P ≤ 0.05) of the calorimetric values was 76.26 kJ/kg, and among the by-products of bio-energy production, it was 20.80 kJ/kg. Significant differences were also found in nutrient content. In the case of the alkali content of bio-energy residues, the LSD was 0.04 kJ.kg-1. For the bagasse and compost, the study recommends some technical operations to avoid slagging. Keywords: biomass, combustion, calorimeter, ash, alkali content Journal: Research in Agricultural Engineering Pages: 121-127 Volume: 64 Issue: 3 Year: 2018 DOI: 10.17221/13/2017-RAE File-URL: http://rae.agriculturejournals.cz/doi/10.17221/13/2017-RAE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/rae-201803-0003.txt Handle: RePEc:caa:jnlrae:v:64:y:2018:i:3:id:13-2017-RAE Template-Type: ReDIF-Article 1.0 Author-Name: Seyed Abbas Radmard Author-Workplace-Name: Department of Biosystem, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, Iran Author-Name: Hossein Haji Agha Alizadeh Author-Workplace-Name: Department of Biosystem, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, Iran Author-Name: Rahman Seifi Author-Workplace-Name: Department of Mechanical Engineering, Faculty of Engineering, Bu-Ali Sina University, Hamedan, Iran Title: Enhancement anaerobic digestion and methane production from kitchen waste by thermal and thermo-chemical pretreatments in batch leach bed reactor with down flow Abstract: The effects of thermal (autoclave and microwave irradiation (MW)) and thermo-chemical (autoclave and microwave irradiation - assisted NaOH 5N) pretreatments on the chemical oxygen demand (COD) solubilisation, biogas and methane production of anaerobic digestion kitchen waste (KW) were investigated in this study. The modified Gompertz equation was fitted to accurately assess and compare the biogas and methane production from KW under the different pretreatment conditions and to attain representative simulations and predictions. In present study, COD solubilisation was demonstrated as an effective effect of pretreatment. Thermo-chemical pretreatments could improve biogas and methane production yields from KW. A comprehensive evaluation indicated that the thermo-chemical pretreatments (microwave irradiation and autoclave- assisted NaOH 5N, respectively) provided the best conditions to increase biogas and methane production from KW. The most effective enhancement of biogas and methane production (68.37 and 36.92 l, respectively) was observed from MW pretreated KW along with NaOH 5N, with the shortest lag phase of 1.79 day, the max. rate of 2.38 l.day-1 and ultimate biogas production of 69.8 l as the modified Gompertz equation predicted. Keywords: autoclave, microwave irradiation, kitchen waste, methane, modified Gompertz equation Journal: Research in Agricultural Engineering Pages: 128-135 Volume: 64 Issue: 3 Year: 2018 DOI: 10.17221/16/2017-RAE File-URL: http://rae.agriculturejournals.cz/doi/10.17221/16/2017-RAE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/rae-201803-0004.txt Handle: RePEc:caa:jnlrae:v:64:y:2018:i:3:id:16-2017-RAE Template-Type: ReDIF-Article 1.0 Author-Name: Hasan Aslan Author-Workplace-Name: Department of Field Crops, GAP Agricultural Research Institute, Sanliurfa, Turkey Author-Name: Mahmut Gayberi Author-Workplace-Name: Department of Field Crops, GAP Agricultural Research Institute, Sanliurfa, Turkey Author-Name: Abdullah Kahraman Author-Workplace-Name: Department of Field Crops, Faculty of Agriculture, Harran University, Sanliurfa, Turkey Title: Effects of polymer cyclohexane application on lentil pod shatter in semi-arid region of Turkey Abstract: Pod shattering in lentil which is vital plant of dry lands is a crucial feature for high yield. Selection of lentil variety is very important in order to reduce pod shatter. Some of lentil varieties are very productive; however, shattering loss decreases profitable yields. In this study, reduction of pod shatter in lentil varieties was investigated with application of polymer cyclohexane compounds. An experiment was conducted with split-split-plot experiment design with two lentil varieties ('Firat-87' and 'Cagil'), two application time (podset and 15 days before harvest (DBH)) and three application doses (0, 0.5, 2 l.ha-1) as triplicate during two years. Effects of application time on podset were found statistically insignificant and application of 0.5 l.ha-1 dose was found effective for 15 DBH application time. As a result, 0.5 pod shatter polymer cyclohexane and 15 DBH was found as optimum doses and application time, respectively in order to reduce pod shatter loss by nearly 1% for semiarid region of Turkey. Keywords: lentil shedding, polymer application, pod dehiscence, lentil yield loss Journal: Research in Agricultural Engineering Pages: 136-142 Volume: 64 Issue: 3 Year: 2018 DOI: 10.17221/78/2017-RAE File-URL: http://rae.agriculturejournals.cz/doi/10.17221/78/2017-RAE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/rae-201803-0005.txt Handle: RePEc:caa:jnlrae:v:64:y:2018:i:3:id:78-2017-RAE Template-Type: ReDIF-Article 1.0 Author-Name: Volodymyr Bulgakov Author-Workplace-Name: Department of Mechanics, Faculty construction and design, National University of Life and Environmental Sciences of Ukraine, Kiev, Ukraine Author-Name: Semjons Ivanovs Author-Workplace-Name: Ulbroka Research Centre, Faculty of Engineering, Latvia University of Agriculture, Jelgava, Latvia Author-Name: Valerii Adamchuk Author-Workplace-Name: National Scientific Centre "Institute for Agricultural Engineering and Electrification", Hlevakha, Ukraine Author-Name: Stanislav Smolinskyi Author-Workplace-Name: Department of Mechanics, Faculty construction and design, National University of Life and Environmental Sciences of Ukraine, Kiev, Ukraine Title: Theoretical studies of interaction of the drum cleaner with the sugar beet head Abstract: Basic provisions have been worked out for a theory of interaction of the drum cleaner from the remaining tops with the sugar beet heads after the basic mass has been cut off without extracting the roots from the soil, wherein the head of the root stays motionless in the soil at a certain height of protrusion. The drum cleaner, working forward and simultaneously rotating, starts a contact with the protruding head of the rootcrop and, moving around it, brushes away efficiently the remaining tops. On the basis of the obtained differential equations of the movement of the drum there are proposed mathematical dependencies substantiating the optimal parameters of the drum cleaner of the rootcrop heads from the remaining tops. Keywords: tops, equivalent scheme, optimal parameters Journal: Research in Agricultural Engineering Pages: 143-150 Volume: 64 Issue: 3 Year: 2018 DOI: 10.17221/104/2017-RAE File-URL: http://rae.agriculturejournals.cz/doi/10.17221/104/2017-RAE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/rae-201803-0006.txt Handle: RePEc:caa:jnlrae:v:64:y:2018:i:3:id:104-2017-RAE Template-Type: ReDIF-Article 1.0 Author-Name: Viktor I. Starovoitov Author-Workplace-Name: All-Russian Research Institute of Potato Growing named after A.G. Lorkh, Kraskovo, Russian Federation Author-Name: Oksana A. Starovoitova Author-Workplace-Name: All-Russian Research Institute of Potato Growing named after A.G. Lorkh, Kraskovo, Russian Federation Author-Name: Nikolay Aldoshin Author-Workplace-Name: Russian State Agrarian University - Moscow Agricultural Academy named after K.A. Timiryazev, Moscow, Russian Federation. Author-Name: Aleksandra A. Manokhina Author-Workplace-Name: Russian State Agrarian University - Moscow Agricultural Academy named after K.A. Timiryazev, Moscow, Russian Federation. Title: Technology and mechanization of cultivation of Jerusalem artichoke healthier Abstract: erusalem artichoke (Helianthus tuberosum L.) is a promising bioenergy multi-purpose crop. The Jerusalem artichoke is a valuable culture that is a source of inulin, fructose and pectin. Green mass of the Jerusalem artichoke has a high content of complex carbohydrate (fructose, glucose, sucrose, etc.) in the dry weight of the plant contain up to 17% protein with a balanced amino acid composition. Biotechnological methods are firmly established in plant growing practice and are widely used for rapid multiplication and obtaining healthy planting material of many economically important crops. The technology of micro clonal propagation "in vitro" has great importance for the development of seed production of Jerusalem artichoke and obtain sufficient quantity of high quality planting material. Formed innovative scheme of sequential technological process of seed production of Jerusalem artichoke includes the production of original seed material "in vitro" Jerusalem artichoke, mass reproduction by aero hydroponic installations, and the rationale based on research of the technology of growing high-quality seed of Jerusalem artichoke. It was found that at cultivation of minitubers of micro plants in aero hydroponic installation compared to farming by traditional technology, the cost of one minituber decreased by 9.58 RUB. Keywords: sequential technological process, seed production of Jerusalem artichoke, source of plants, minitubers Journal: Research in Agricultural Engineering Pages: 151-156 Volume: 64 Issue: 3 Year: 2018 DOI: 10.17221/108/2017-RAE File-URL: http://rae.agriculturejournals.cz/doi/10.17221/108/2017-RAE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/rae-201803-0007.txt Handle: RePEc:caa:jnlrae:v:64:y:2018:i:3:id:108-2017-RAE Template-Type: ReDIF-Article 1.0 Author-Name: Anwar M. Hossen Author-Workplace-Name: Department of Farm Power and Machinery, Faculty of Agricultural Engineering and Technology, Bangladesh Agricultural University, Mymensingh, Bangladesh Author-Workplace-Name: Bangladesh Rice Research Institute, Gazipur, Bangladesh Author-Name: Mosharraf M. Hossain Author-Workplace-Name: Department of Farm Power and Machinery, Faculty of Agricultural Engineering and Technology, Bangladesh Agricultural University, Mymensingh, Bangladesh Author-Name: Enamul M. Haque Author-Workplace-Name: School of Veterinary and Life Sciences, Murdoch University, Murdoch, Australia Author-Name: Richard W. Bell Author-Workplace-Name: School of Veterinary and Life Sciences, Murdoch University, Murdoch, Australia Title: Effect of growing media on mat type seedling raised for mechanical rice transplanting Abstract: Mechanical transplanted seedling must meet the requirements of standard seedling block with uniform distribution of seedlings and inter-twisting roots for rolling. This study was conducted to identify the effect of growing media on mat type seedling raised for mechanical transplanting at Bangladesh Rice Research Institute (BRRI), Gazipur during the period of 2012-2014 covering two dry and cold seasons (Boro) and one wet season (Aman). Seedling were raised on plastic tray using sandy loam and clay loam soil mixed with decomposed cow-dung, mustard cake, rice straw organic fertilizer, rice bran, poultry litter and vermicompost at the rate of 0.0, 10, 20, 30 and 40%. Rolling quality of the seedling mat decreased and seedling height increased with the increased of mixing rate of organic fertilizer except rice bran and mustard cake. Averaged across three seasons, 10 to 30% cow-dung, rice straw organic fertilizer, vermicompost, 10% poultry litter and 20 to 30% rice bran with both types of soil was found suitable for seedling mat and seedling height. However, seedling varied among the organic fertilizers with both types of soil in the order of cow-dung > rice bran > vermicompost > poultry liter > rice straw organic fertilizer > mustard cake. Clay loam soil showed better performance on rolling quality over sandy loam soil. Keywords: rice transplanter, organic fertilizer, rolling up, seedling mat, seedling height Journal: Research in Agricultural Engineering Pages: 157-167 Volume: 64 Issue: 3 Year: 2018 DOI: 10.17221/79/2016-RAE File-URL: http://rae.agriculturejournals.cz/doi/10.17221/79/2016-RAE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/rae-201803-0008.txt Handle: RePEc:caa:jnlrae:v:64:y:2018:i:3:id:79-2016-RAE