scholarly journals Cultivator­Fertilizer Field Tests Using a Differential Fertilization System

2021 ◽  
Vol 15 (2) ◽  
pp. 46-52
Author(s):  
A. I. Derepaskin ◽  
A. N. Kuvaev ◽  
I. V. Tokarev
Keyword(s):  
Energy Consumption ◽  
Fuel Consumption ◽  
Economic Effect ◽  
Specific Energy Consumption ◽  
Field Tests ◽  
Soil Survey ◽  
Specific Fuel Consumption ◽  
Mineral Fertilizers ◽  
Unit Energy ◽  
Fertilization System

The authors carried out field tests of differentiated fertilization system "Agronavigator-Dozator" installed on a cultivator-fertilizer for intra-soil application of granular mineral fertilizers in the conditions of Northern Kazakhstan. (Research purpose) To determine the effect of differentiated fertilization system on agrotechnical, energy, operational and technological and economic indexes of the cultivator-fertilizer in field conditions. (Materials and methods) The authors carried out agrochemical soil survey according to the officially approved method. They made an electronic task map. They used the methodology for determining the conditions of field tests, agrotechnical, energy, operational and technological and energy assessments that met the current regulatory documentation requirements. Field tests of differentiated fertilization system were carried out during the second flat-cut processing of the steam field with simultaneous intra-soil granular mineral fertilizers application. (Results and discussion) The authors found out that the use of differentiated fertilization system "Agronavigator-Dozator" reduced the actual dose of application from 95 to 40 kilograms per hectare. It was determined that the presence of a parallel driving mode in the system under study reduced the amount of overlap of adjacent aisles, thereby increasing shift productivity - from 4.25 to 4.32 hectares per hour, unit energy consumption decreased from 88.1 to 86.6 megajoules per hectare, and the specific fuel consumption decreased from 14.41 to 14.16 kilograms per hectare. The economic effect of the use of differentiated fertilization system "Agronavigator- Dozator " amounted to 630.6 thousand rubles per year. (Conclusions) The authors proved that differential fertilization system "Agronavigator-Dozator" effect the actual dose of fertilization, which decreased by 57.6 percent. It was found that a decrease in the overlap of adjacent aisles increased shift productivity, reduced specific fuel consumption and specific energy consumption by 1.7 percent. It was calculated that the total sum of money was reduced by 36 percent due to the use of differentiated fertilization system "Agronavigator- Dozator".

Energy Consumption of Turbine Unit with Varying Exhaust Pressure under Off-Designed Conditions

2014 ◽  
Vol 654 ◽  
pp. 113-116
Author(s):  
Ning Ling Wang ◽  
Han Xu ◽  
Peng Fu ◽  
Dian Fa Wu ◽  
Zhi Ping Yang ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Steam Turbine ◽  
Fuel Consumption ◽  
Power Unit ◽  
Economic Performance ◽  
Turbine Unit ◽  
Specific Fuel Consumption

The exhaust pressure affects the economic performance of the whole power unit greatly. Based on the theory of energy specific fuel consumption (ESFC), the changing principle of energy consumption in a power unit was studied. In the turbine unit, the energy-consumption caused by topological factors was also discussed with different exhaust pressure. The results showed that the changing of exhaust pressure makes great effects on topological energy consumption of steam turbine. It makes great reference for the energy-saving diagnosis of the energy consumption for the overall power units.

scholarly journals Power Transmission Efficiency Analysis of 42 kW Power Agricultural Tractor According to Tillage Depth during Moldboard Plowing

Agronomy ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1263
Author(s):  
Yeon-Soo Kim ◽  
Wan-Soo Kim ◽  
Md. Abu Ayub Siddique ◽  
Seung-Yun Baek ◽  
Seung-Min Baek ◽  
...  
Keyword(s):  
Fuel Consumption ◽  
Measurement System ◽  
Consumption Rate ◽  
Power Transmission ◽  
Field Tests ◽  
Transmission Efficiency ◽  
Specific Fuel Consumption ◽  
Fuel Consumption Rate ◽  
Tillage Depth ◽  
Agricultural Tractor

In order to optimize tractor design and optimize efficiency during tillage operation, it is essential to verify the impact through field tests on factors affecting the tractor load. The objectives of this study were to investigate the effect of tillage depth on power transmission efficiency of 42 kW power agricultural tractor during moldboard plowing. A load measurement system and a tillage depth measurement system were configured for field tests. To analyze the effect of tillage depth on power transmission efficiency and fuel consumption, the data measured in the three-repeated field test were classified according to tillage depth. As the tillage depth increased from 11 cm at the top of the hardpan to 23 cm at the deepest, the required power of the engine increased by approximately 13% from 35.48 kW to 40.11 kW, and the power transmission efficiency also increased significantly from 66% to 95%. Among them, the power transmission efficiency of the rear axle was significantly increased from 38% to 59%, which was the most affected. As the tillage depth increased, the overall power requirement is greatly increased due to the resulting workload, but the fuel consumption and the specific fuel consumption are reduced because the engine speed of the tractor is reduced. As the tillage depth increased from 11 cm to 23 cm, the fuel consumption rate was rather reduced by 13.5% as the engine rotational speed decreased 11.3% due to the increase work load of tractor. In addition, the specific fuel consumption decreased from 302.44 g/kWh to 236.93 g/kWh, showing a fuel consumption saving of up to 21.7% during moldboard plow. In addition, as the tillage depth increased, the ratio of the value excluding the mechanical and hydraulic power requirements has significantly decreased from 34% to 5% as the power transmission efficiency increases. This study considers the soil properties according to the soil depth, as well as the power transmission efficiency and fuel consumption rate. The research results can provide useful information for research on power transmission efficiency and selection of an appropriate power source of agricultural tractor according to tillage depth during moldboard plowing and are expected to be used in various ways as basic studies of digital farming research in agricultural machinery.

Comparison of Performance of a Diesel Engine Fueled with Soybean Biodiesel

2013 ◽  
Vol 341-342 ◽  
pp. 1408-1411
Author(s):  
Jian Tong Song ◽  
Chun Hua Zhang
Keyword(s):  
Energy Consumption ◽  
Diesel Engine ◽  
Fuel Consumption ◽  
Specific Energy Consumption ◽  
Attractive Alternative ◽  
Brake Specific Fuel Consumption ◽  
Diesel Fuels ◽  
Brake Power ◽  
Soybean Biodiesel ◽  
Lubricating Properties

Biodiesel as a renewable and environmentally friendly alternative fuel derived from natural fats or vegetable oils has better lubricating properties and much higher cetane ratings than today's lower sulfur diesel fuels. It is considered as an attractive alternative to replace diesel fuels. In order to investigate application of biodiesel on vehicle diesel engines, the power and fuel economies performances of a diesel fueled soybean biodiesel with different blending ratios were tested under different engine loads and speeds. Experimental results show that, compared with diesel fuel, with increase in the biodiesel in the blends, the brake power and torque, and the brake specific energy consumption increase but the fuel consumption per hour and brake specific fuel consumption decrease.

scholarly journals Estimation of vehicle operational fuel consumption

2010 ◽  
Vol 142 (3) ◽  
pp. 48-58
Author(s):  
Jacek KROPIWNICKI
Keyword(s):  
Energy Consumption ◽  
Fuel Consumption ◽  
Specific Energy ◽  
Specific Energy Consumption ◽  
Operating Conditions ◽  
Urban Traffic ◽  
Drive System ◽  
System Efficiency ◽  
External Conditions ◽  
The City

A method of a reference fuel consumption calculation for a registered operating conditions has been presented in this work. The operating conditions have been described using specific energy consumption, which takes into account both an influence of external conditions and driver’s style of driving. Results of experiments performed on the territory of the city of Gdańsk in normal urban traffic have been presented. The new concept of estimation of vehicle drive system efficiency and related examples have been also included.

Determination of grinding parameters of fenugreek seed

1970 ◽  
Vol 26 (1) ◽  
pp. 16 ◽  
Author(s):  
S Balasubramanian ◽  
Rajkumar Rajkumar ◽  
K K Singh
Keyword(s):  
Particle Size ◽  
Energy Consumption ◽  
Moisture Content ◽  
Specific Energy ◽  
Feed Rate ◽  
Average Particle Size ◽  
Specific Energy Consumption ◽  
Average Particle ◽  
Fenugreek Seeds ◽  
Fenugreek Seed

Experiment to identify ambient grinding conditions and energy consumed was conducted for fenugreek. Fenugreek seeds at three moisture content (5.1%, 11.5% and 17.3%, d.b.) were ground using a micro pulverizer hammer mill with different grinding screen openings (0.5, 1.0 and 1.5 mm) and feed rate (8, 16 and 24 kg h-1) at 3000 rpm. Physical properties of fenugreek seeds were also determined. Specific energy consumptions were found to decrease from 204.67 to 23.09 kJ kg-1 for increasing levels of feed rate and grinder screen openings. On the other hand specific energy consumption increased with increasing moisture content. The highest specific energy consumption was recorded for 17.3% moisture content and 8 kg h-1 feed rate with 0.5 mm screen opening. Average particle size decreased from 1.06 to 0.39 mm with increase of moisture content and grinder screen opening. It has been observed that the average particle size was minimum at 0.5 mm screen opening and 8 kg h-1 feed rate at lower moisture content. Bond’s work index and Kick’s constant were found to increase from 8.97 to 950.92 kWh kg-1 and 0.932 to 78.851 kWh kg-1 with the increase of moisture content, feed rate and grinder screen opening, respectively. Size reduction ratio and grinding effectiveness of fenugreek seed were found to decrease from 4.11 to 1.61 and 0.0118 to 0.0018 with the increase of moisture content, feed rate and grinder screen opening, respectively. The loose and compact bulk densities varied from 219.2 to 719.4 kg m-3 and 137.3 to 736.2 kg m-3, respectively.  

scholarly journals Bibliometric Analysis of Specific Energy Consumption (SEC) in Machining Operations: A Sustainable Response

2021 ◽  
Vol 13 (10) ◽  
pp. 5617
Author(s):  
Raman Kumar ◽  
Sehijpal Singh ◽  
Ardamanbir Singh Sidhu ◽  
Catalin I. Pruncu
Keyword(s):  
Energy Consumption ◽  
Bibliometric Analysis ◽  
Specific Energy ◽  
Specific Energy Consumption ◽  
Primary Data ◽  
Data Content ◽  
Author Keywords ◽  
Link Strength ◽  
Inclusive Analysis ◽  
Machining Operations

This paper’s persistence is to make an inclusive analysis of 268 documents about specific energy consumption (SEC) in machining operations from 2001 to 2020 in the Scopus database. A systematic approach collects information on SEC documents’ primary data; their types, publications, citations, and predictions are presented. The VOSviewer 1.1.16 and Biblioshiny 2.0 software are used for visualization analysis to show the progress standing of SEC publications. The selection criteria of documents are set for citation analysis. The ranks are assigned to the most prolific and dominant authors, sources, articles, countries, and organizations based on the total citations, number of documents, average total citation, and total link strength. The author-keywords, index-keywords, and text data content analysis has been conducted to find the hotspots and progress trend in SEC in machining operations. The most prolific and dominant article, source, author, organization, and country are Anderson et al. “Laser-assisted machining of Inconel 718 with an economic analysis”, the Int J Mach Tools Manuf, Shin Y.C., form Purdue University Singapore, and United States, respectively, based on total citations as per defined criteria. The author keywords “specific cutting energy” and “surface roughness” dominate the machining operations SEC. SEC’s implication in machining operations review and bibliometric analysis is to deliver an inclusive perception for the scholars working in this field. It is the primary paper that utilizes bibliometric research to analyze the SEC in machining operations publications expansively. It is valuable for scholars to grasp the hotspots in this field in time and help the researchers in the SEC exploration arena rapidly comprehend the expansion status and trend.

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