Energy Consumption of Sugarcane Basecutting Using Contra- Rotating Basecutters

2020 ◽  
Vol 63 (2) ◽  
pp. 317-324
Author(s):  
Fenglei Wang ◽  
Shaochun Ma ◽  
Wenli Ke ◽  
Haonan Xing ◽  
Jing Bai
Keyword(s):  
Energy Consumption ◽  
Significant Influence ◽  
Tilt Angle ◽  
Rotational Speed ◽  
Feeding Rate ◽  
Orthogonal Experiment ◽  
Single Factor ◽  
Blade Number ◽  
New Type ◽  
Level 2

HighlightsThe objective of this study was to investigate the parameters of a new type of contra-rotating basecutter on the energy consumption during support cutting.Rotational speed of basecutting discs and feeding rate of sugarcane stalks had significant influence on the cutting energy consumption, while tilt angle of discs and blade number on each disc had no significant influence on it.The influencing order of the factors used in this research was disc rotational speed > feeding rate > disc tilt angle > blade number, and the basecutting energy was minimum when the above four factors were 150 rpm, 1.0 m·s-1, 20°, and 4.Abstract. Previous studies on a new type of contra-rotating basecutter that was designed based on the support-cutting theory mainly focused on the relationship between the cutting quality of sugarcane stalks and the basecutter parameters. However, the relationship between these factors and the energy consumption during basecutting was not studied. Therefore, a contra-rotating basecutting platform was developed to investigate how the rotational speed (RS) and tilt angle (TA) of the cutting disc, cutting blade number (BN), and sugarcane stalk feeding rate (FR) affected basecutting energy consumption through a series of bench tests, which included four single-factor experiments and a four-factor four-level orthogonal experiment. Results of the single-factor experiments showed that the basecutting energy consumption increased with increasing RS and BN, while the energy consumption decreased with increasing TA and FR. In addition, t-test results among the four levels of each factor indicated that the differences were not significant (p > 0.05) for level 3 vs. 4 of TA, for level 2 vs. 3 and level 2 vs. 4 of BN, and for level 2 vs. 3 of FR. However, there were significant differences between the other two levels of each factor. ANOVA of the orthogonal experiment results showed that RS and FR had significant influence on basecutting energy consumption, while TA and BN had no significant influence. The influencing order of the four factors on energy consumption was RS > FR > TA > BN (F-values of 19.64 > 10.04 > 4.95 > 2.45). Finally, the optimal combination was determined as 150 rpm for RS, 20° for TA, 4 for BN, and 1.0 m.s-1 for FR. This study provides references for the optimal design of contra-rotating basecutters, which could greatly reduce energy consumption during sugarcane harvest. Keywords: Contra-rotating basecutter, Energy consumption, Orthogonal experiment, Single-factor experiment, Support-cutting theory.

Base Cutting Energy Consumption for Sugarcane Stools Using Contra-Rotating Basecutters

2021 ◽  
Vol 64 (1) ◽  
pp. 221-230
Author(s):  
Fenglei Wang ◽  
Shaochun Ma ◽  
Haonan Xing ◽  
Jing Bai ◽  
Jinzhi Ma ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Tilt Angle ◽  
Confidence Level ◽  
Feed Rate ◽  
Rotational Speed ◽  
Orthogonal Experiment ◽  
List Type ◽  
Single Factor ◽  
Cutting Energy ◽  
Range Test

HighlightsThis study focused on the base cutting energy consumption for sugarcane stools instead of single stalks, thus being more consistent with actual field harvesting.The energy consumption increased with increasing rotational speed (RS) and stool diameter (SD), while it decreased with increasing tilt angle (TA) and feed rate (FR).Each pair of levels of each factor was compared using Duncan’s multiple range test. Three factors (RS, SD, and FR) had significant effects on energy consumption at 95% confidence level, while one factor (TA) had no significant effect.The order of influence and the optimal combination of the four factors to minimize the energy consumed during base cutting were determined.Abstract. Previous studies on contra-rotating basecutter designs based on supported cutting have mainly focused on the base cutting energy consumption for single sugarcane stalks instead of sugarcane stools. However, in the actual base cutting process, a basecutter typically cuts multiple sugarcane stalks (in one sugarcane stool) simultaneously. Therefore, this study investigated how the rotational speed (RS) and tilt angle (TA) of the cutting discs, the sugarcane stool diameter (SD), and the feed rate (FR) affected the energy consumed when cutting cane stools using a contra-rotating cutting platform. Four single-factor experiments and an orthogonal experiment were performed using a Taguchi orthogonal experimental design, and each group was replicated five times. The results of the single-factor experiments showed that the energy consumption was proportional to RS and SD, while it was negatively correlated with TA and FR. The significance of the difference between each pair of levels of each factor was investigated using Duncan’s multiple range test. According to the results of the orthogonal experiment, RS, SD, and FR had significant influences on the base cutting energy consumption at the 95% confidence level; however, TA had no significant influence. The order of influence of the four factors was SD > FR > RS > TA (18.45 > 18.39 > 12.91 > 9.06), and the optimal factor-level combination for minimizing the cutting energy was RS2, TA4, SD1, and FR3 (200 rpm disc RS, 20° disc TA, 60 mm SD, and 1.0 m s-1 FR). An understanding of the relationships between energy consumption and its influencing factors can serve as a valuable reference for researchers seeking to optimize the design of contra-rotating basecutters, which could lead to increased energy efficiency and a reduction in energy consumption during sugarcane harvesting. Keywords: Contra-rotating basecutter, Energy consumption, Orthogonal experiment, Single-factor experiment, Sugarcane stools, Supported cutting.

Optimization of pea seed intermittent drying assisted with ultrasound technology

2020 ◽  
Vol 16 (7) ◽  
Author(s):  
Fei Yu ◽  
Zhao Yang ◽  
Zhichao Tao ◽  
Zongyu Yang
Keyword(s):  
Energy Consumption ◽  
Comprehensive Evaluation ◽  
Orthogonal Experiment ◽  
Drying Kinetics ◽  
Ultrasonic Power ◽  
Single Factor ◽  
Drying Method ◽  
Range Analysis ◽  
Drying Temperature ◽  
Pea Seed

AbstractIn recent years, hot air-drying coupled with ultrasonic technique or intermittent method is widely applied in food drying owing to significantly improving drying properties. The objective of this paper was to study the effect of drying temperature, ultrasonic power and intermittent method on drying kinetics, seed vitality and energy consumption of pea seed. The single factor tests were performed with air temperature of 28, 32, 36, and 40 °C, using ultrasound at four power levels of 60, 100, 150, and 200 W, and intermittent drying with intermittent ratios of 1, 1/2, 1/3 and middle intermittence. The orthogonal experiments of three factors with three levels were conducted based on the results of single factor test. Results indicated that drying temperature, ultrasonic power and drying method all had significant effects on drying kinetics, germination percentage (GP), mean germination time (MGT) and germination index (GI) (P < 0.05), and application of intermittent drying method can greatly reduce energy consumption. Further, from the orthogonal experiment, the greatest impact on the comprehensive evaluation index of seed drying was intermittent method, followed by drying temperature and the least was ultrasonic power. The optimum drying parameters of pea seed were drying temperature of 36°C, ultrasonic power of 200 W, and drying method of intermittent ratio 1/2, which were obtained by range analysis in the scope of this experiment.

The Study of Composite Substituting Mercury Corrosion Inhibitors for Zinc in Zinc-Manganese Battery

2014 ◽  
Vol 881-883 ◽  
pp. 102-107 ◽  
Author(s):  
Yun Cui ◽  
Di Shun Zhao ◽  
Hai Qu ◽  
Guan Wei Qu ◽  
Jing Liu ◽  
...  
Keyword(s):  
Corrosion Inhibitors ◽  
Inhibition Efficiency ◽  
Electrochemical Impedance ◽  
Orthogonal Experiment ◽  
Single Factor ◽  
Coated Paper ◽  
Environment Friendly ◽  
Tafel Polarization ◽  
Zinc Corrosion ◽  
New Type

The inhibition behavior of a new type of mercury-free composite inhibitors for zinc corrosion in zinc-manganese dry battery was studied by single factor test and orthogonal experiment. Its inhibitor mechanism was investigated by Tafel polarization curve, electrochemical impedance spectroscopy (EIS) techniques. The performances of the coated paper and self-assembled battery were detected. The results showed that: the inhibition efficiency of the composite substituting mercury corrosion inhibitors was up to 93.33%. The performances of the coated paper and battery were consistent with standards. The composite corrosion inhibitors are a green environment- friendly corrosion inhibitor, which is expected to replace mercury in zinc-manganese dry batteries.

scholarly journals NUMERICAL SIMULATION AND EXPERIMENT OF VIBRATION PELLETIZER BASED ON EDEM

2021 ◽  
pp. 469-478
Author(s):  
Nianzu Dai ◽  
Zhanfeng Hou ◽  
Yi Qiu ◽  
Xiwen Zhang
Keyword(s):  
Numerical Simulation ◽  
Force Field ◽  
Vibration Frequency ◽  
Tilt Angle ◽  
Rotation Speed ◽  
Orthogonal Experiment ◽  
Single Factor ◽  
Powder Mixing ◽  
Simulation And Experiment

In order to quantitatively describe the influence between the mixing process and the pelleting quality of the vibration pelletizer, this paper uses EDEM to conduct a numerical simulation study on the uniformity of the seeds and powder mixing of the pelleting machine under vibration force field. Meanwhile, a single factor test was established to verify the feasibility of numerical simulation. The results show that the coefficient of variation CV is the smallest and the mixing uniformity between the seeds and powder is the highest when the vibration frequency is 20Hz, the rotation speed is 45r/min, the tilt angle is 40° during numerical simulation. The pelleting qualified rate J and single seed rate P as the test index of the mixing uniformity of seed pelleting shows the optimum value in the single factor test, EDEM can be used to analyse the mixing uniformity and pelleting quality in pelletizer. The results of orthogonal experiment indicated that the best combination of parameters was obtained as follows: vibration frequency of 20Hz, rotation speed of 45r/min and tilt angle of 40°, the mixing uniformity of seeds and powder and the pelleting quality of Agropyron seeds are the highest. This study can effectively provide reference for design of pelleting machine of small seeds under vibration force field.

Procedure to find out the optimal ranges of process parameters for friction stir welding

2021 ◽  
pp. 146442072199314
Author(s):  
Shubham Verma ◽  
Joy Prakash Misra ◽  
Meenu Gupta
Keyword(s):  
Friction Stir Welding ◽  
Process Parameters ◽  
Tilt Angle ◽  
Welding Speed ◽  
Rotational Speed ◽  
Optical Microscope ◽  
Graphical Analysis ◽  
Friction Stir ◽  
Steepest Ascent ◽  
Vertical Milling Machine

The present study deals with the application of sequential procedure (i.e. steepest ascent) to obtain the optimum values of process parameters for conducting friction stir welding (FSW) experiments. A vertical milling machine is modified by fabricating fixture and tool ( H13 material) for performing FSW operation to join AA7039 plates. The steepest ascent technique is employed to design the experiments at different rotational speed, welding speed, and tilt angle. The ultimate tensile strength is considered as a performance characteristic for deciding the optimal levels. The mechanical and metallurgical characteristics of the joints are studied by executing tensile and microhardness tests. It is concluded from the graphical analysis of the steepest ascent technique that the optimal maximum and minimum values are 1812–1325 r/min for rotational speed, 43–26 mm/min for welding speed, and 2°–1.3° for tilt angle, respectively. Besides, optical microscope and scanning electron microscope are utilized for microstructural and fractographic analyses for a better understanding of the process.

CAD AND CAE TECHNOLOGIES OF A NOVEL PLANE SIX-BAR SWAYING MACHINE

2008 ◽  
Vol 07 (01) ◽  
pp. 65-67
Author(s):  
CHANGPING ZOU ◽  
LI DU ◽  
XIANDE HUANG
Keyword(s):  
High Pressure ◽  
Kinetic Analysis ◽  
Rotational Speed ◽  
Preliminary Analysis ◽  
Unit Weight ◽  
The Novel ◽  
Parameterized Modeling ◽  
New Type ◽  
Working Principle ◽  
Key Dimensions

A new type of six-bar swaying machine was put forward, which is an ingenious combination of plane multi-bar mechanism and high pressure oil cylinder. Preliminary analysis shows that this machine has many advantages, such as the torque produced by its unit weight, its small size, its light deadweight, etc. Thus it can be applied to situations that need swaying mechanism with low rotational speed and great torque. Firstly, the mechanism composition and working principle of the swaying machine were introduced. Secondly, parameterized modeling of the mechanism was carried out by utilizing software ADAMS. Then kinematic analysis and kinetic analysis were completed by using ADAMS. Finally, key dimensions were adjusted according to kinetic analysis. These tasks are believed to be beneficial to the development of the novel transmission.

Study of Data Fusion Mechanism Based on the WSN

2013 ◽  
Vol 321-324 ◽  
pp. 600-603
Author(s):  
Wei Liu ◽  
Qin Sheng Du ◽  
Le Le Wang
Keyword(s):  
Wireless Sensor Networks ◽  
Energy Consumption ◽  
Sensor Networks ◽  
Data Fusion ◽  
Wireless Sensor ◽  
Network Technology ◽  
Fusion Method ◽  
Simulation Test ◽  
Embedded Computing ◽  
New Type

Wireless sensor networks integrated four technologies including sensor, embedded computing, network technology and wireless communication. It is a new type of non-infrastructure wireless network. In this paper, a data fusion method has been brought forward based on wireless sensor networks, and through an algorithm simulation test, It is proved that the algorithm is effective to reduce the energy consumption of the network, and extend the lifetime of the network.

The Preparation of Loaded Photocatalyst for Advanced Treatment of NH3-N in Coking Water

2013 ◽  
Vol 726-731 ◽  
pp. 2829-2832
Author(s):  
Yong Shu Tian ◽  
Run Xin Hou
Keyword(s):  
Photocatalytic Degradation ◽  
Orthogonal Experiment ◽  
Influence Factors ◽  
Advanced Treatment ◽  
Optimum Process ◽  
Process Conditions ◽  
Single Factor ◽  
Clay Brick ◽  
Degradation Rates ◽  
Single Factor Experiment

Photocatalyst of Fe-Sm-Yb modified TiO2 loaded on clay brick was prepared for degradation of NH3-N in coking water. The influence factors of NH3-N degradation rates were discussed by single factor experiment and orthogonal experiment. The optimum process conditions of photocatalytic degradation NH3-N in coking water were confirmed. The results show that NH3-N degradation rates 82.23% were highest in the conditions of pH 6.5, photocatalyst charge of 1.4 g, illumination for 6h, reaction at 55°C, calcination at 500°C.

Conduction Roaster for Accelerated Roasting of Peanut

2021 ◽  
Vol 58 (02) ◽  
pp. 112-123
Author(s):  
Rakesh Kumar Raigar ◽  
Hari Niwas Mishra
Keyword(s):  
Energy Consumption ◽  
Specific Energy ◽  
Rotational Speed ◽  
Specific Energy Consumption ◽  
Quality Parameters ◽  
Operating Conditions ◽  
Moisture Loss ◽  
Optimum Operating ◽  
Small Scale ◽  
Roasting Temperature

Roasting is one of the thermo-mechanical operation in cereals and oilseeds processing. Low-capacity machine for mechanisation of roasting is necessary for small-scale processing. A conduction-type motorised rotary roaster (8 kg per batch) was designed and developed for roasting of peanuts. Performance of the roaster was evaluated in terms of moisture loss, scorched kernels, and specific energy consumption for accelerated roasting of peanut. The effects of different roasting conditions were studied to determine the optimum operating conditions of the roaster. Quality indices of peanuts as moisture loss (kg.kg-1), scorched kernel (%), and specific energy consumption (kWh.kg-1) were dependent on the operating conditions. The optimum value of moisture loss (0.041± 0.003 kg.kg-1), scorched kernel (0.93± 0.0.004 % ), and specific energy consumption (0.185 ± 0.005 kWh.kg-1) were obtained at roasting temperature of 170°C, roasting time of 15 min, and rotational speed of 20 rpm for roasting peanut. The roasting characteristics of peanut decreased linearly with increase in the temperature and time; and decrease in the rotational speed. The inferior quality parameters were observed at higher temperatures, speed and medium time of roasting. The study indicated optimum roasting temperature of peanut to be 170°C, and further increase in the process temperature had undesirable effects on roasted peanut quality due to high loss of moisture.

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