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Utilisation of rheological models for describing the mechanical behaviour of oil palm empty fruit bunches under compression loading 利用流变模型描述油棕空果束在压缩载荷下的力学行为
Research in Agricultural Engineering Pub Date : 2023-11-11 DOI: 10.17221/17/2023-rae
Tomas Saller, David Herák
{"title":"Utilisation of rheological models for describing the mechanical behaviour of oil palm empty fruit bunches under compression loading","authors":"Tomas Saller, David Herák","doi":"10.17221/17/2023-rae","DOIUrl":"https://doi.org/10.17221/17/2023-rae","url":null,"abstract":"This study uses rheological models to describe the mechanical behaviour of oil palm empty fruit bunches (EFB) under compression loading. The oil palm empty fruit bunches were obtained from North Sumatra, Indonesia. The rheological models for different fraction sizes of the mechanical behaviour under compression loading were developed based on a mathematical concept involving spring and dashpot components. The dependencies between fraction size, viscosity, and modulus elasticity were determined and mathematically described for each branch of the rheological model. The general rheological model was developed based on the defined dependencies, considering the deformation and fraction sizes. The determined rheological models and their components could be used as a fundamental building block of digital twins of oil palm empty fruit bunches, and they could be used to optimise the compressing technology and increase the efficiency of the entire pressing process.","PeriodicalId":20906,"journal":{"name":"Research in Agricultural Engineering","volume":"35 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135042636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of microclimate in the New Holland T6.165 tractor 新荷兰T6.165拖拉机小气候的发展
Research in Agricultural Engineering Pub Date : 2023-11-09 DOI: 10.17221/27/2023-rae
Jan Hart, Veronika Hartová
{"title":"Development of microclimate in the New Holland T6.165 tractor","authors":"Jan Hart, Veronika Hartová","doi":"10.17221/27/2023-rae","DOIUrl":"https://doi.org/10.17221/27/2023-rae","url":null,"abstract":"A number of stimuli lead to what is termed \"seasonal fatigue\", where the only firm interconnection is the fact that this form of fatigue only occurs during a certain period of the season. The interior of the cabin and its effect on the machine operator is notable. The microclimate of the environment in which the operator works has a direct impact on his/her condition and, consequentially, the extent of his/her fatigue. The development of microclimate in a modern agricultural machine must be identified, and based on such findings, recommendation should be given regarding procedures for improving the current situation in agricultural technology. For testing, the New Holland T6.165 tractor was therefore selected. The individual measurements show that a certain drop of oxygen occurs in the cabin during the first half hour of driving. This leads to an increase in CO<sub>2</sub>, which is in turn caused by the higher ventilation of the given individuals present in the vehicle. To eliminate said drops in O<sub>2</sub>, the use of oxygen concentrators may be recommended.","PeriodicalId":20906,"journal":{"name":"Research in Agricultural Engineering","volume":" 82","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135241292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mathematical modeling of drying parameters of moringa oleifera leaves in a cabinet drye 柜式干燥机中辣木叶干燥参数的数学建模
Research in Agricultural Engineering Pub Date : 2023-10-31 DOI: 10.17221/72/2022-rae
Timothy Adekanye, Abiodun Okunola, Olumuyiwa Moses, Endurance Idahosa, Yisa Boye, Aminu Saleh
{"title":"Mathematical modeling of drying parameters of moringa oleifera leaves in a cabinet drye","authors":"Timothy Adekanye, Abiodun Okunola, Olumuyiwa Moses, Endurance Idahosa, Yisa Boye, Aminu Saleh","doi":"10.17221/72/2022-rae","DOIUrl":"https://doi.org/10.17221/72/2022-rae","url":null,"abstract":"This study focused on drying moringa leaves using a cabinet dryer. The impact of the 40, 50, and 60 °C drying air temperatures on the moisture content of the leaves at a constant air velocity with variation in weight (40, 80, and 120 g) was considered. Ten drying models were fitted to the drying data to describe the drying parameters of moringa leaves. The best model was chosen based on the highest coefficient of determination (R2), and the lowest sum of square error (SSE) and root mean square error (RMSE) values. The Henderson and Pabis model best described the drying characteristics of the moringa leaves having the highest R2 (0.9888) and lowest SSE (0.0401) and RMSE (0.0604). The effective moisture diffusivity increased with the temperatures ranging from 8.72 × 10–9 to 1.40 × 10–8 m2·s–1. The activation energy ranged from 90.4636, 40.4884, and 22.7466 KJ·mol–1 for 40, 80, and 120 g, respectively.","PeriodicalId":20906,"journal":{"name":"Research in Agricultural Engineering","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135978949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development and evaluation of an electromagnetic device to improve the physiological properties of some crop seeds 一种改善作物种子生理特性的电磁装置的研制与评价
Research in Agricultural Engineering Pub Date : 2023-10-31 DOI: 10.17221/108/2022-rae
Ahmed Shawky El-Sayed
{"title":"Development and evaluation of an electromagnetic device to improve the physiological properties of some crop seeds","authors":"Ahmed Shawky El-Sayed","doi":"10.17221/108/2022-rae","DOIUrl":"https://doi.org/10.17221/108/2022-rae","url":null,"abstract":"This research aims to develop an eco-friendly technique for treating seeds before sowing and improving their physiological features. The developed technique depends on utilizing synchronized electro-magnetization and microwave radiation. An electromagnetic device was evaluated to provide multiple treatment ranges. The treatments are regulated electronically according to the seeds' physiological properties and storage duration. The device was designed to accommodate small and medium seeds for a variety of strategic crops, including wheat, barley, etc. Three different treated wheat varieties were tested and compared to the control. Also, eight different levels of synchronized electro-magnetization and microwave radiation were tested. The treated wheat seeds' vegetative properties, such as germination percentage, germination rate index, germination speed coefficient, and vigour indexes, were highly significant compared to the control. The treated wheat seeds' physiological properties were highly significant. The device productivity ranged from 0.023 to 0.059 Mg·h–1 with minimum energy consumption rates of 0.396 to 0.018 kWh·Mg–1, while the operating costs decreased to 11.53–44.13 USD·Mg–1.","PeriodicalId":20906,"journal":{"name":"Research in Agricultural Engineering","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135978950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
3D finite element analysis of tine cultivator and soil deformation 时空耕耘机三维有限元分析与土壤变形
Research in Agricultural Engineering Pub Date : 2023-09-03 DOI: 10.17221/58/2022-rae
Muhammad Hashaam, Muhammad Waqar Akram, Moaz Ahmad, Muhammad Zuhaib Akram, Muhammad Faheem, Muhammad Maqsood, Muhammad Aleem
{"title":"3D finite element analysis of tine cultivator and soil deformation","authors":"Muhammad Hashaam, Muhammad Waqar Akram, Moaz Ahmad, Muhammad Zuhaib Akram, Muhammad Faheem, Muhammad Maqsood, Muhammad Aleem","doi":"10.17221/58/2022-rae","DOIUrl":"https://doi.org/10.17221/58/2022-rae","url":null,"abstract":": For effective tillage, design and selection of tillage tool according to soil type and condition is very important. The present study is carried out for in-depth investigation of different types of shovels of tine cultivator and behavior of soil in response to loads subjected during tillage using finite element analysis. Different types of shovels like reversible, duck foot, seed drill and cultivator shovel are simulated with different types of soil like sand, clay and loam. The origination, level and distribution of stresses and deformations in shovels experienced in different types of soils are probed. Furthermore, high stressed and crack sensitive regions are identified. The stresses of 18, 53, 64 MPa are generated in reversible shovel of tine cultivator during ploughing in sandy, clay and loamy soil respectively. In addition, results of different shovels are compared, and it is found that the duck foot type shovel experiences highest stress and deformation. The duck foot shovel experiences about 20 and 71% higher stresses in loam compared to that in clay and sand respectively. Moreover, the study of soil mechanical behavior shows that the soil block (clay soil) experiences maximum stress of 34 MPa while tilling with reversible shovel. The statistical analysis is also conducted that shows high significance of simulation results.","PeriodicalId":20906,"journal":{"name":"Research in Agricultural Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48869438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study on drying of bitter gourd slices based on halogen dryer 基于卤素干燥机的苦瓜片干燥研究
Research in Agricultural Engineering Pub Date : 2023-08-21 DOI: 10.17221/97/2022-rae
Dinh Anh Tuan Tran, T. N. Văn, Dinh Nhat Hoai Le, T. Ho
{"title":"Study on drying of bitter gourd slices based on halogen dryer","authors":"Dinh Anh Tuan Tran, T. N. Văn, Dinh Nhat Hoai Le, T. Ho","doi":"10.17221/97/2022-rae","DOIUrl":"https://doi.org/10.17221/97/2022-rae","url":null,"abstract":"","PeriodicalId":20906,"journal":{"name":"Research in Agricultural Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49216777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhanced biodiesel production from waste cooking oils catalyzed by sodium hydroxide supported on heterogeneous co-catalyst of bentonite clay 膨润土非均相助催化剂负载氢氧化钠催化废食用油制备生物柴油
Research in Agricultural Engineering Pub Date : 2023-08-03 DOI: 10.17221/70/2022-rae
D. Darwin, Rini Ayu Marisa Harahap, Atmadian Pratama, Muhammad Thifa, Muhammad A Alwi Fayed
{"title":"Enhanced biodiesel production from waste cooking oils catalyzed by sodium hydroxide supported on heterogeneous co-catalyst of bentonite clay","authors":"D. Darwin, Rini Ayu Marisa Harahap, Atmadian Pratama, Muhammad Thifa, Muhammad A Alwi Fayed","doi":"10.17221/70/2022-rae","DOIUrl":"https://doi.org/10.17221/70/2022-rae","url":null,"abstract":"","PeriodicalId":20906,"journal":{"name":"Research in Agricultural Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48740996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design and construction of coffee roasting machine with rounding cylinder tube using electric heat source 电热源圆管咖啡烘焙机的设计与施工
Research in Agricultural Engineering Pub Date : 2023-08-02 DOI: 10.17221/69/2022-rae
A. Lubis, S. Syafriandi, M. Idkham, A. Maulana
{"title":"Design and construction of coffee roasting machine with rounding cylinder tube using electric heat source","authors":"A. Lubis, S. Syafriandi, M. Idkham, A. Maulana","doi":"10.17221/69/2022-rae","DOIUrl":"https://doi.org/10.17221/69/2022-rae","url":null,"abstract":"","PeriodicalId":20906,"journal":{"name":"Research in Agricultural Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42863437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation and modelling of biogas production from batch anaerobic digestion of corn stover with oxalic acid 草酸对玉米秸秆分批厌氧消化产气的评价与建模
Research in Agricultural Engineering Pub Date : 2023-07-18 DOI: 10.17221/98/2022-rae
Shitophyta Lukhi Mulia, Arnita Arnita, Wulansari Hilda
{"title":"Evaluation and modelling of biogas production from batch anaerobic digestion of corn stover with oxalic acid","authors":"Shitophyta Lukhi Mulia, Arnita Arnita, Wulansari Hilda","doi":"10.17221/98/2022-rae","DOIUrl":"https://doi.org/10.17221/98/2022-rae","url":null,"abstract":"","PeriodicalId":20906,"journal":{"name":"Research in Agricultural Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41612917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A novel hybrid feature method for weeds identification in the agriculture sector 一种新的农业杂草识别混合特征方法
Research in Agricultural Engineering Pub Date : 2023-07-02 DOI: 10.17221/77/2022-rae
Sheeraz Arif, Rashid Hussain, N. Ansari, Waseem Rauf
{"title":"A novel hybrid feature method for weeds identification in the agriculture sector","authors":"Sheeraz Arif, Rashid Hussain, N. Ansari, Waseem Rauf","doi":"10.17221/77/2022-rae","DOIUrl":"https://doi.org/10.17221/77/2022-rae","url":null,"abstract":"","PeriodicalId":20906,"journal":{"name":"Research in Agricultural Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44105776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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