Acta Technologica Agriculturae最新文献_第6页

Evaluation and Impacts of Grape Harvester Parameters on Harvest Losses 葡萄收获机参数对收获损失的评价及影响

IF 1.4

Acta Technologica Agriculturae Pub Date : 2022-11-01 DOI: 10.2478/ata-2022-0027

Martin Dočkalík, J. Jobbágy

引用次数: 0

Performance and Emission of Diesel Engine Fuelled by Commercial Bio-Diesel Fuels in Indonesia 印度尼西亚商用生物柴油发动机的性能和排放

IF 1.4

Acta Technologica Agriculturae Pub Date : 2022-11-01 DOI: 10.2478/ata-2022-0032

T. Kristyadi, D. Permana, Muhammad Pramuda Nugraha Sirodz, Encu Saefudin, I. Farkas

{"title":"Performance and Emission of Diesel Engine Fuelled by Commercial Bio-Diesel Fuels in Indonesia","authors":"T. Kristyadi, D. Permana, Muhammad Pramuda Nugraha Sirodz, Encu Saefudin, I. Farkas","doi":"10.2478/ata-2022-0032","DOIUrl":"https://doi.org/10.2478/ata-2022-0032","url":null,"abstract":"Abstract The performance and emission of a small diesel engine fuelled by commercial diesel fuel in Indonesia are present in this paper. Various commercial diesel fuels in Indonesia are produced and marketed by Pertamina. As the largest oil company in Indonesia, Pertamina has developed various diesel fuels, namely Solar, Biosolar (B30), Dexlite, and Pertadex. This study explains in more detail the performance, fuel consumption, and emission produced by the four types of fuels, and they were investigated experimentally using a single-cylinder diesel engine at various engine speeds, from 1,000 rpm to 4,500 rpm. The result shows the engine fuelled by Pertadex generates the highest power and torque, while the lowest is generated by the Biosolar fuelled engine. The maximum torque and power generated by the Pertadex fuelled engine are about 25.5 Nm and 7200 W, respectively. The engine fuelled by Pertadex has the lowest brake specific fuel consumption (BSFC) of 0.3037 kg·kW·h, compared to the engines fuelled by the Dexlite, Solar, and Biosolar fuels, with values around 0.3127, 0.3215, and 0.3338 kg·kW·h, respectively. At the same time, the measurement of gas emissions, including CO2, CO, NOx, and HC was conducted simultaneously.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":"25 1","pages":"221 - 228"},"PeriodicalIF":1.4,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47757718","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: 3

Experimental Study of Two Fallow Field Treatment Influence Methods on Soil Moisture Dynamics 两种处理方式对土壤水分动态影响的试验研究

IF 1.4

Acta Technologica Agriculturae Pub Date : 2022-11-01 DOI: 10.2478/ata-2022-0026

V. Bulgakov, P. Findura, V. Nadykto, V. Kyurchev, M. Tikhovod

引用次数: 2

Corrosion Evaluation of Body in White Bimetallic Joints 白色双金属接头体的腐蚀评价

IF 1.4

Acta Technologica Agriculturae Pub Date : 2022-11-01 DOI: 10.2478/ata-2022-0028

Ján Lilko, M. Kotus, Martin Baráth, R. Drlička

{"title":"Corrosion Evaluation of Body in White Bimetallic Joints","authors":"Ján Lilko, M. Kotus, Martin Baráth, R. Drlička","doi":"10.2478/ata-2022-0028","DOIUrl":"https://doi.org/10.2478/ata-2022-0028","url":null,"abstract":"Abstract This scientific article deals with cyclic corrosion testing of bimetallic joints in order to describe the influence of different surface treatment as a protection against galvanic corrosion on bimetallic materials. Multi-material body parts joined with advanced manufacturing technologies are used to achieve the required car properties. Metallic materials have different values of electronegativity and joining increases the risk of corrosion. Different types of coatings are used to prevent galvanic corrosion, but each increases investments and costs. Galvanic corrosion affects the lifecycle of the car. Cyclic corrosion testing provides replicable results to estimate the range of corrosion in a real environment. Test specimens from different materials were riveted and treated with various surface treatments. The method and design of samples preparation is unique and reflects the reality more than current methods. It has not yet been published in any literature. The corrosion test was performed for 6 weeks. Samples were subjected to a salt mist with temperatures of 25 °C and 50 °C, wetting and drying phases. The samples were evaluated according to the standard EN ISO 4628-1:2016. Microscopic and energy-dispersive analysis were performed. Tests have shown considerable galvanic corrosion on uncoated samples. On the samples with ecoated surface galvanic corrosion was not recorded.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":"25 1","pages":"190 - 196"},"PeriodicalIF":1.4,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43079977","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 Prediction of Excavating Force and Power of Chain Type Trenching Machine 链式挖沟机开挖力与动力的数学预测

IF 1.4

Acta Technologica Agriculturae Pub Date : 2022-11-01 DOI: 10.2478/ata-2022-0029

M. Ghoni̇my, E. A. E. Rahman, A. Alzoheiry

引用次数: 2

Performance Evaluation of Tillage Knife Discharge Microchannel 耕刀放电微通道的性能评价

IF 1.4

Acta Technologica Agriculturae Pub Date : 2022-11-01 DOI: 10.2478/ata-2022-0025

Khozhakeldi Tanbayev, S. Nukeshev, A. Sugirbay

{"title":"Performance Evaluation of Tillage Knife Discharge Microchannel","authors":"Khozhakeldi Tanbayev, S. Nukeshev, A. Sugirbay","doi":"10.2478/ata-2022-0025","DOIUrl":"https://doi.org/10.2478/ata-2022-0025","url":null,"abstract":"Abstract Liquid mineral fertilizers (LMF) have a high sorption ability, can be metered precisely, and the intra-soil application of LMF is relevant. However, the agricultural equipment for this process that introduces the liquid fertilizer under processed soil layer in the form of a wide band has not yet been proposed. The purpose of the study is to evaluate the performance of a 102 mm wide rectangular discharge microchannel of the proposed soil tillage knife designed for deep tillage and intra-soil application of liquid fertilizers and to study the influence of the microchannel length (L) and slot height (h) on the uniformity of discharge. Solidworks Flow Simulation® was used during investigations, and simulation results were compared with experiment results. It has been determined that the effective slot height for water discharge at Vi = 3–4 m·s−1 is 0.1 (±0.01) mm, an effective microchannel length is 20 (±2) mm, and the influence of L depends on h. Sheet thickness will not change at a distance of 10–15 mm (b). Fall angle is 0–5°. In conclusion, the proposed discharge microchannel with asymmetrical feed is applicable for intra-soil application of LMF, and the surface tension effect has to be considered. A way to enhancing the sheet uniformity is the geometrical modification of feed channel shape.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":"25 1","pages":"169 - 175"},"PeriodicalIF":1.4,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43970505","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: 3

Compressive Loading of Apple Cultivar Golden Delicious 苹果品种黄金美味的压缩负荷

IF 1.4

Acta Technologica Agriculturae Pub Date : 2022-08-12 DOI: 10.2478/ata-2022-0022

Ľ. Kubík, V. Kažimírová, M. Božiková

引用次数: 0

Changes in the Key Physicochemical Parameters and Selected Trace Elements of Oil Due to Its Use in Hydraulic System of Woodworking Equipment 木材加工设备液压系统用油主要理化参数及微量元素选择的变化

IF 1.4

Acta Technologica Agriculturae Pub Date : 2022-08-12 DOI: 10.2478/ata-2022-0021

M. Kučera, M. Hnilicová

引用次数: 1

Exergo-Environmental Optimization of a Diesel Engine 柴油机的燃烧-环境优化

IF 1.4

Acta Technologica Agriculturae Pub Date : 2022-08-12 DOI: 10.2478/ata-2022-0024

R. Pourdarbani, S. Ardabili, Ebrahim Akbarpouran, J. L. Hernández-Hernández

{"title":"Exergo-Environmental Optimization of a Diesel Engine","authors":"R. Pourdarbani, S. Ardabili, Ebrahim Akbarpouran, J. L. Hernández-Hernández","doi":"10.2478/ata-2022-0024","DOIUrl":"https://doi.org/10.2478/ata-2022-0024","url":null,"abstract":"Abstract Currently, more than half of the road transport fleet uses diesel engines, which are often identified as the primary source of air pollution. This parameter is enough to optimize engine performance and emissions. The engine optimization can be done using several methods, the most notably by modifying the engine structure, changing the type of fuel using additives and biofuels, or achieving the optimal operating range of the engine. Modifying the engine structure and addition of different kinds of materials to optimize fuel is not recommended either due to necessity of vast time input, financial resources, or extensive research. However, the third way to achieve optimal engine performance conditions can be the most accessible option. According to the results, the best operational load for diesel engine is approx. 94–95% of the full load from the multi-objective optimization point of view, indicating that the optimum load can be achieved before the full load condition. At this point, the operator can achieve the brake power of 198.45 kW and brake thermal efficiency of 40.7% in the presence of brake specific fuel consumption of 0.226 kg·kWh−1. At this condition, CO2 emission is 124.85 g·kWh−1, NOx emission 7.34 g·kWh−1, CO emission 0.6 g·kWh−1, unburnt hydrocarbon emission approx. 0.009 g·kWh−1, and soot formation approx. 0.006 g·kWh−1. This point is equal to the exergy efficiency of approx. 35% and the exergy destruction of approx. 45%. In terms of endpoint results, this condition achieved the impact indices of 7.96E-007 in terms of human health, 0.105 PDF·m2·yr. in terms of ecosystem quality, 0.24 kg CO2 eq. in terms of climate change, and 12.96 MJ in terms of resources.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":"25 1","pages":"157 - 168"},"PeriodicalIF":1.4,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44960439","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: 1

Paraplough and Mouldboard Plow Performance Evaluation for Seedbed Preparation and Supporting Conservation Tillage 准犁和模板犁在苗床准备和配套保护性耕作中的性能评价

IF 1.4

Acta Technologica Agriculturae Pub Date : 2022-08-12 DOI: 10.2478/ata-2022-0017

Mohammad Reza Abbaspour Gilandeh, Gholamhossein Shahgholi, Yousef Abbaspour Gilandeh

{"title":"Paraplough and Mouldboard Plow Performance Evaluation for Seedbed Preparation and Supporting Conservation Tillage","authors":"Mohammad Reza Abbaspour Gilandeh, Gholamhossein Shahgholi, Yousef Abbaspour Gilandeh","doi":"10.2478/ata-2022-0017","DOIUrl":"https://doi.org/10.2478/ata-2022-0017","url":null,"abstract":"Abstract The final yield of agricultural products depends on the effective factors during the growing season of plants, especially the size of soil aggregates and proper size distribution of aggregates. Therefore, it is very important to select appropriate tillage implement and to provide a suitable seedbed in terms of aggregate size with the least energy consumption. It is a new idea to use paraplough and winged-paraplough as tools for seedbed preparation. To measure and determine the factors affecting the mean weight diameter (MWD) of aggregates and percentage of crop residues on the soil surface, a series of field trials were performed in a randomized complete block design (RCBD) with five replications. The trials were conducted at three forward speeds of 2, 5 and 7 km·h−1 and three operating depths of 0–10; 0–20; 0–30 cm using the mouldboard plough and the paraplough with different wing configurations (without wings, with forward wings, with backward wings). The main impacts of implemented type, forward speed and operating depth and their mutual binary effects were significant at P <1% for both the MWD of aggregates and percentage of remaining residue. The highest MWD of aggregates was related to mouldboard plough (5.59 mm) and the lowest value was related to paraplough with backward wings (2.9 mm). It was found that the winged paraplough created a good pulverization in the soil and sustained a high percentage of crop residues on the soil surface. This issue can be very useful and important in the conservation tillage and the conservation of soil resources, especially in the water deficient areas where the soil is prone to erosion.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":"25 1","pages":"105 - 112"},"PeriodicalIF":1.4,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47494998","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: 1