Andrés Rodriguez Toscano, R. Ramírez, J. M. Sánchez
This research presents a thermodynamic analysis of a Thermal LTC-10 single-effect absorption series cooling system using the water/LiBr pair. Four operating scenarios were modeled on an hourly basis (24h) with EES software using mass and energy balances and the environmental conditions of the city of Barranquilla, Colombia. The analysis of the results shows that the system powered only by solar energy obtains the highest COP between 8:00 and 16:00 hours and the lowest greenhouse gas (GHG) emissions, while the system powered by rice husk biogas presents stable operation throughout the day and higher SO2eq emissions.
{"title":"TECHNICAL AND ENVIRONMENTAL EVALUATION OF USING RICE HUSKS AND SOLAR ENERGY ON THE ACTIVATION OF ABSORPTION CHILLERS IN THE CARIBBEAN REGION. CASE STUDY: BARRANQUILLA","authors":"Andrés Rodriguez Toscano, R. Ramírez, J. M. Sánchez","doi":"10.35633/inmateh-70-06","DOIUrl":"https://doi.org/10.35633/inmateh-70-06","url":null,"abstract":"This research presents a thermodynamic analysis of a Thermal LTC-10 single-effect absorption series cooling system using the water/LiBr pair. Four operating scenarios were modeled on an hourly basis (24h) with EES software using mass and energy balances and the environmental conditions of the city of Barranquilla, Colombia. The analysis of the results shows that the system powered only by solar energy obtains the highest\u0000COP between 8:00 and 16:00 hours and the lowest greenhouse gas (GHG) emissions, while the system powered by rice husk biogas presents stable operation throughout the day and higher SO2eq emissions.","PeriodicalId":44197,"journal":{"name":"INMATEH-Agricultural Engineering","volume":"87 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41307514","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}
Dragoş Preda, B. Duran, Adrian Pandele, Oana-Diana MANOLELI-PREDA, Aneta Ionescu
Governmental incentives, technological progress, and lowering costs have made renewable energy more accessible and more affordable for residential areas. Switching to renewable energy sources not only reduces greenhouse gas emissions but also provides long-term financial gains, energy independence, and a cleaner environment for communities. In this study, a numerical analysis of a vertical-axis wind turbine layout that is easily adaptable to populated areas was conducted. Among the results are the variation of the torque coefficient during the course of a complete 360-degree rotation and the vorticity magnitude evolution at the nominal point. In order to validate the numerical results, a test campaign will be conducted inside the wind tunnel as part of further study. This campaign will be carried out using an experimental small-scale model.
{"title":"NUMERICAL ANALYSIS OF A NOVEL VERTICAL-AXIS WIND TURBINE LAYOUT","authors":"Dragoş Preda, B. Duran, Adrian Pandele, Oana-Diana MANOLELI-PREDA, Aneta Ionescu","doi":"10.35633/inmateh-70-49","DOIUrl":"https://doi.org/10.35633/inmateh-70-49","url":null,"abstract":"Governmental incentives, technological progress, and lowering costs have made renewable energy more accessible and more affordable for residential areas. Switching to renewable energy sources not only reduces greenhouse gas emissions but also provides long-term financial gains, energy independence, and a cleaner environment for communities. In this study, a numerical analysis of a vertical-axis wind turbine layout that is easily adaptable to populated areas was conducted. Among the results are the variation of the torque coefficient during the course of a complete 360-degree rotation and the vorticity magnitude evolution at the nominal point. In order to validate the numerical results, a test campaign will be conducted inside the wind tunnel as part of further study. This campaign will be carried out using an experimental small-scale model.","PeriodicalId":44197,"journal":{"name":"INMATEH-Agricultural Engineering","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42121857","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}
Xin Wang, Guohai Zhang, Jiaguo Yao, Jitan Lian, Xining Yang
The corn grain harvester serves as an example of complex farming machinery with a condition monitoring system that collects a lot of working condition data, making it challenging to identify the true change pattern due to the data coming from the equipment in various states. Firstly, the overall structure of the corn grain harvester is analyzed, and the common causes and mechanisms of corn grain harvester failures are analyzed, leading to the cutting table as the main research object; Secondly, by collecting historical failure data of corn grain harvester as well as real-time failure information for collation and pre-processing, eliminating interference such as noise and missing data, establishing a failure matrix, extracting internal characteristics between failure causes and establishing a mapping between failure causes and failure phenomena; Finally, the future failure phenomena of the corn grain harvester are predicted according to different failure causes. The simulation analysis results show that the self-coding neural network fault prediction model can better predict the occurrence probability and types of faults and provide data support for fault maintenance and decision making of agricultural machinery.
{"title":"FAULT PREDICTION MODEL OF CORN GRAIN HARVESTER BASED ON SELFCODING NEURAL NETWORK","authors":"Xin Wang, Guohai Zhang, Jiaguo Yao, Jitan Lian, Xining Yang","doi":"10.35633/inmateh-70-22","DOIUrl":"https://doi.org/10.35633/inmateh-70-22","url":null,"abstract":"The corn grain harvester serves as an example of complex farming machinery with a condition monitoring system that collects a lot of working condition data, making it challenging to identify the true change pattern due to the data coming from the equipment in various states. Firstly, the overall structure of the corn grain harvester is analyzed, and the common causes and mechanisms of corn grain harvester failures are analyzed, leading to the cutting table as the main research object; Secondly, by collecting historical failure data of corn grain harvester as well as real-time failure information for collation and pre-processing, eliminating interference such as noise and missing data, establishing a failure matrix, extracting internal characteristics between failure causes and establishing a mapping between failure causes and failure phenomena; Finally, the future failure phenomena of the corn grain harvester are predicted according to different failure causes. The simulation analysis results show that the self-coding neural network fault prediction model can better predict the occurrence probability and types of faults and provide data support for fault maintenance and decision making of agricultural machinery.","PeriodicalId":44197,"journal":{"name":"INMATEH-Agricultural Engineering","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45803195","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}
Qiang Su, Xuying Li, Fandi Zeng, Hongbin Bai, Junyue Wang
The sandy loam soil has complex movement characteristics during hole formation by hanging cup transplanters. In order to better investigate this point, the paper aims to investigate the disturbance pattern of transplanter vibration on sandy loam soil and the movement characteristics of soil particles by the discrete element method. The vibration characteristics of the transplanter operating on sandy loam soil were tested and analyzed, and the motion law of vibration parameters on sandy loam soil was investigated with the help of the discrete element method and soil bin test. The results showed that the vibration acceleration of the transplanter increased with the forward speed, the primary vibration frequency range was from 0 to 12 Hz, and the vibration amplitude increased linearly in the field of 1.21 to 9.19 mm. The Central Composite test resulted in the regression equations of vibration amplitude and vibration frequency on the average movement velocity of the particles. The response surface analysis showed that the effect of vibration amplitude on the average movement velocity of particles was greater than the effect of vibration frequency on the average movement velocity of particles. At the same time, the average movement velocity of the particles tends to increase significantly under the interaction of the two. This study provides data to support the design of planters for sandy loam soils, which is beneficial to promote seedling transplanting technology further.
{"title":"EFFECT OF TRANSPLANTER VIBRATION ON PARTICLE MOVEMENT VELOCITY OF SANDY LOAM SOIL BY USING DEM","authors":"Qiang Su, Xuying Li, Fandi Zeng, Hongbin Bai, Junyue Wang","doi":"10.35633/inmateh-70-51","DOIUrl":"https://doi.org/10.35633/inmateh-70-51","url":null,"abstract":"The sandy loam soil has complex movement characteristics during hole formation by hanging cup transplanters. In order to better investigate this point, the paper aims to investigate the disturbance pattern of transplanter vibration on sandy loam soil and the movement characteristics of soil particles by the discrete element method. The vibration characteristics of the transplanter operating on sandy loam soil were tested\u0000and analyzed, and the motion law of vibration parameters on sandy loam soil was investigated with the help of the discrete element method and soil bin test. The results showed that the vibration acceleration of the transplanter increased with the forward speed, the primary vibration frequency range was from 0 to 12 Hz, and the vibration amplitude increased linearly in the field of 1.21 to 9.19 mm. The Central Composite test resulted in the regression equations of vibration amplitude and vibration frequency on the average movement velocity of the particles. The response surface analysis showed that the effect of vibration amplitude on the average movement velocity of particles was greater than the effect of vibration frequency on the average movement velocity of particles. At the same time, the average movement velocity of the particles tends to increase significantly under the interaction of the two. This study provides data to support the design of planters for sandy loam soils, which is beneficial to promote seedling transplanting technology further.","PeriodicalId":44197,"journal":{"name":"INMATEH-Agricultural Engineering","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48879433","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}
Coconut coir dust and corn stover powder were taken as raw biomass materials for pellet production, using four uni-axial compression set-ups, to explore the influence of the diameter of the inner hole diameter of the cylinder, the depth in compression , and the depth remained in compaction on the pellet density. Sample of pellets produced at the force steady phase, the maximum pellet density of the coconut coir dust material is 1.53 g/cm3 (1530 kg/m3), and 1.23 g/cm3 (1230 kg/m3) of the corn stalk powder pellets are obtained, At the same time, in the process of the test, Failure to compress the two biomass raw materials into pellets also occurred, indicating that the compression parameters studied in the experiment had a significant impact on the pellet quality. On the basis of the obtained pelleting test data, taking into account the nonlinear characteristics between pellet density and processing parameters involved, the adaptive neuro-fuzzy influence system(ANFIS) method was used to predict the pellet density of coconut coir dust and corn stover powder. The results show that the method is effective for predicting the density of biomass particles.
{"title":"PREDICTION OF BIOMASS PELLET DENSITY USING ADAPTIVE NEURO-FUZZY INFERENCE SYSTEM（ANFIS）METHOD","authors":"Juanya Liu, Zhuoyu Yan, Mingze Xu, Yudi Liu, Xuewei Bai, Yonghai Xiu, Desheng Wei","doi":"10.35633/inmateh-70-18","DOIUrl":"https://doi.org/10.35633/inmateh-70-18","url":null,"abstract":"Coconut coir dust and corn stover powder were taken as raw biomass materials for pellet production, using four uni-axial compression set-ups, to explore the influence of the diameter of the inner hole diameter of the cylinder, the depth in compression , and the depth remained in compaction on the pellet density. Sample of pellets produced at the force steady phase, the maximum pellet density of the coconut coir dust material is 1.53 g/cm3 (1530 kg/m3), and 1.23 g/cm3 (1230 kg/m3) of the corn stalk powder pellets are obtained, At the same time, in the process of the test, Failure to compress the two biomass raw materials into pellets also occurred, indicating that the compression parameters studied in the experiment had a significant impact on the pellet quality. On the basis of the obtained pelleting test data, taking into account the nonlinear characteristics between pellet density and processing parameters involved, the adaptive neuro-fuzzy influence system(ANFIS) method was used to predict the pellet density of coconut coir dust and corn stover powder. The results show that the method is effective for predicting the density of biomass particles.","PeriodicalId":44197,"journal":{"name":"INMATEH-Agricultural Engineering","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48156409","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}
Yin-ping Zhang, Bin Wang, X. Li, Hua Zhou, Fangyuan Lu, Jiasheng Wang
Facilities greenhouses are relatively narrow and airtight, and the machine operation turns frequently. The existing vegetable seeders is supported by manual hand, and the straightness of operation is poor, Turning around is time-consuming and laborious. This paper designs a remote control system of small vegetable seeder based on Arduino microcontroller, the Arduino single-chip microcomputer remote control technology, multi-motor synchronous drive technology, differential-electric push rod combined with lifting and steering control and other methods are adopted, Through remote control, the forward, speed regulation, lifting of the whole machine and field line change and steering of the seeder during vegetable sowing are realized. The differential steering model and brushless motor speed control model are established, and the android human-computer interaction APP is designed to realize the remote precise control of vegetable seeder. The performance test of the accuracy of the control system was carried out with the accuracy and steering accuracy of the seeder. The results showed that : under the condition of medium speed and medium and low speed operation, the seeding level of vegetable seeder is the most stable and reliable, the speed deviation rate of the seeder is 1.59 %, after starting the drive motor for 2s, the actual speed is close to the target speed, differential steering is relatively accurate, the qualified rate of steering is more than 89.8 %, the synchronous speed error of the lifting mechanism tends to be stable.This study can provide reference for the development of intelligent equipment for facility agriculture.
{"title":"DESIGN AND PERFORMANCE TEST OF REMOTE CONTROL SYSTEM FOR SMALL VEGETABLE PLANTER BASED ON ARDUINO","authors":"Yin-ping Zhang, Bin Wang, X. Li, Hua Zhou, Fangyuan Lu, Jiasheng Wang","doi":"10.35633/inmateh-70-27","DOIUrl":"https://doi.org/10.35633/inmateh-70-27","url":null,"abstract":"Facilities greenhouses are relatively narrow and airtight, and the machine operation turns frequently. The existing vegetable seeders is supported by manual hand, and the straightness of operation is poor, Turning around is time-consuming and laborious. This paper designs a remote control system of small vegetable seeder based on Arduino microcontroller, the Arduino single-chip microcomputer remote control technology, multi-motor synchronous drive technology, differential-electric push rod combined with lifting and steering control and other methods are adopted, Through remote control, the forward, speed regulation, lifting of the whole machine and field line change and steering of the seeder during vegetable sowing are realized. The differential steering model and brushless motor speed control model are established, and the android human-computer interaction APP is designed to realize the remote precise control of vegetable seeder. The performance test of the accuracy of the control system was carried out with the accuracy and steering accuracy of the seeder. The results showed that : under the condition of medium speed and medium and low speed operation, the seeding level of vegetable seeder is the most stable and reliable, the speed deviation rate of the seeder is 1.59 %, after starting the drive motor for 2s, the actual speed is close to the target speed, differential steering is relatively accurate, the qualified rate of steering is more than 89.8 %, the synchronous speed error of the lifting mechanism tends to be stable.This study can provide reference for the development of intelligent equipment for facility agriculture.","PeriodicalId":44197,"journal":{"name":"INMATEH-Agricultural Engineering","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44874806","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}
Xianmin Liang, Xiangcai Zhang, Xingcheng An, Meng Liu, Xianliang Wang, Zhongcai Wei, Xiupei Cheng, Hui Li
An active-action seeding depth automatic control system was designed , with the purpose of effectively ensure the consistency and stability of the seeding depth when the seeder is operated in the field. Strain-gauge pressure sensor was used in the system, which can detect the force on the tip of the furrow opener in the soil in real time, proceed to the next step judge the change of the seeding depth in the soil according to the change of the pressure signal. In order to achieve consistency and stability of seeding depth, the control signal formation circuit will send a control signal when the pressure on the tip of furrow opener exceeds the appropriate pressure range, and the motor will be controlled to rotate clockwise or counterclockwise to drive the rack and pinion movement to realize the vertical lift of the furrow opener, so that the force on the tip of furrow opener in the soil remains within the appropriate range. The test results indicate that the seeding depth adjustment device based on the tip of furrow opener force measurement has stable and reliable control performance for controlling the seeding depth with an average seeding depth qualification rate of 94.56% and an average seeding depth variation coefficient of only 9.29%, which greatly ensures the consistency and stability of the seeding depth under the condition that the seeding depth is 30-70mm and the working speed is 3-7km/h.
{"title":"RESEARCH ON THE SEEDING DEPTH ADJUSTMENT DEVICE BASED ON THE TIP OF FURROW OPENER FORCE MEASUREMENT","authors":"Xianmin Liang, Xiangcai Zhang, Xingcheng An, Meng Liu, Xianliang Wang, Zhongcai Wei, Xiupei Cheng, Hui Li","doi":"10.35633/inmateh-70-54","DOIUrl":"https://doi.org/10.35633/inmateh-70-54","url":null,"abstract":"An active-action seeding depth automatic control system was designed , with the purpose of effectively ensure the consistency and stability of the seeding depth when the seeder is operated in the field. Strain-gauge pressure sensor was used in the system, which can detect the force on the tip of the furrow opener in the soil in real time, proceed to the next step judge the change of the seeding depth in the soil according to the change of the pressure signal. In order to achieve consistency and stability of seeding depth, the control signal formation circuit will send a control signal when the pressure on the tip of furrow opener exceeds the appropriate pressure range, and the motor will be controlled to rotate clockwise or counterclockwise to drive the rack and pinion movement to realize the vertical lift of the furrow opener, so that the force on the tip of furrow opener in the soil remains within the appropriate range. The test results indicate that the seeding depth adjustment device based on the tip of furrow opener force measurement has stable and reliable control performance for controlling the seeding depth with an average seeding depth qualification rate of 94.56% and an average seeding depth variation coefficient of only 9.29%, which greatly ensures the consistency and stability of the seeding depth under the condition that the seeding depth is 30-70mm and the working speed is 3-7km/h.","PeriodicalId":44197,"journal":{"name":"INMATEH-Agricultural Engineering","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46059323","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}
Soluble solid content (SSC) is a major quality index of kiwifruits. Visible near-infrared (Vis/NIR) hyperspectral imaging with the genetic algorithm (GA) was adopted in this study to realize the non-destructive prediction of kiwifruit SSC. A laboratory Vis/NIR hyperspectral imaging system was established to collect the hyperspectral imaging of 120 kiwifruit samples at a range of 400–1100 nm. The average reflectance spectral data of the region of interest of the kiwifruit hyperspectral imaging were obtained after different preprocessing method, namely, Savitzky–Golay smoothing (SG), multiplicative scatter correction (MSC), and their combination method. The prediction models of partial least squares regression, multiple linear regression, and least squares support vector machine (LS-SVM) were built for determining kiwifruit SSC by using the average reflectance spectral data and effective feature wavelength variables selected by GA, respectively. The results show that SG+MSC is the best preprocessing method. The precisions of the prediction models built using the effective feature wavelength variables selected by GA are higher than that established using full average reflectance spectral data. The GA-LS-SVM prediction model has a best performance with correlation coefficient for prediction (R=0.932) and standard error of prediction (SEP=0.536° Bx) for predicting kiwifruit SSC. The prediction accuracy has been improved by 5.6% compared with that of the prediction models established by using the full-band reflectance spectral data. This study provides an effective method for non-destructive detection of kiwifruit SSC.
{"title":"NON-DESTRUCTIVE PREDICTION OF SOLUBLE SOLID CONTENT IN KIWIFRUIT BASED ON VIS/NIR HYPERSPECTRAL IMAGING","authors":"Shibang Ma, Ailing Guo","doi":"10.35633/inmateh-70-42","DOIUrl":"https://doi.org/10.35633/inmateh-70-42","url":null,"abstract":"Soluble solid content (SSC) is a major quality index of kiwifruits. Visible near-infrared (Vis/NIR) hyperspectral imaging with the genetic algorithm (GA) was adopted in this study to realize the non-destructive prediction of kiwifruit SSC. A laboratory Vis/NIR hyperspectral imaging system was established to collect the hyperspectral imaging of 120 kiwifruit samples at a range of 400–1100 nm. The average reflectance spectral data of the region of interest of the kiwifruit hyperspectral imaging were obtained after different preprocessing method, namely, Savitzky–Golay smoothing (SG), multiplicative scatter correction (MSC), and their combination method. The prediction models of partial least squares regression, multiple linear regression, and least squares support vector machine (LS-SVM) were built for determining kiwifruit SSC by using the average reflectance spectral data and effective feature wavelength variables selected by GA, respectively. The results show that SG+MSC is the best preprocessing method. The precisions of the prediction models built using the effective feature wavelength variables selected by GA are higher than that established using full average reflectance spectral data. The GA-LS-SVM prediction model has a best performance with correlation coefficient for prediction (R=0.932) and standard error of prediction (SEP=0.536° Bx) for predicting kiwifruit SSC. The prediction accuracy has been improved by 5.6% compared with that of the prediction models established by using the full-band reflectance spectral data. This study provides an effective method for non-destructive detection of kiwifruit SSC.","PeriodicalId":44197,"journal":{"name":"INMATEH-Agricultural Engineering","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43194828","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}
Jing Tian, Jiayuan Shao, Xinyue Song, Ying Wang, Tingting Yang, Lili Nie, Zhenyu Liu
Livestock scale breeding is the inevitable trend of future livestock and poultry husbandry. Closed breeding requires excellent environment and livestock and poultry housings contain a lot of dust, pathogenic microorganisms and harmful gases, affecting the health of livestock and poultry and breeding personnel. Most of the common sterilization and dust collection devices for livestock and poultry housings on the market are too high energy consumption, and easy to cause secondary pollution. Therefore, an environmental purification device was designed to absorb dust in the air and kill harmful bacteria by using high voltage pulsed electric field. The device was designed using phase control principle and bundled conductor. COMSOL Multiphysics software was used to simulate the layout of single conductor, twin bundled conductor and quad bundled conductor. It was found that when the conductor was designed as twin bundled conductor or quad bundled conductor, the gradient distribution of spatial electric field intensity was more uniform and the downward trend of electric field was slower, which could effectively improve the dust collection and sterilization efficiency of the device. At the same time, a variety of electric field environments can be set up by using phase difference to meet different environmental requirements of livestock and poultry. The compound dust collection and sterilization device with phase-controlled bundled conductor for livestock and poultry housing space includes high voltage pulse generator, bundled conductor, high voltage special timer, insulator and other parts, which can effectively reduce the dust content in the air, the concentration of pathogenic bacteria, harmful gases, etc. after assembly test and can also reduce the humidity in the livestock and poultry housings.
{"title":"DESIGN AND RESEARCH OF COMPOUND DUST COLLECTION AND STERILIZATION DEVICE WITH PHASE-CONTROLLED BUNDLED CONDUCTOR FOR LIVESTOCK AND POULTRY HOUSING SPACE","authors":"Jing Tian, Jiayuan Shao, Xinyue Song, Ying Wang, Tingting Yang, Lili Nie, Zhenyu Liu","doi":"10.35633/inmateh-70-19","DOIUrl":"https://doi.org/10.35633/inmateh-70-19","url":null,"abstract":"Livestock scale breeding is the inevitable trend of future livestock and poultry husbandry. Closed breeding requires excellent environment and livestock and poultry housings contain a lot of dust, pathogenic microorganisms and harmful gases, affecting the health of livestock and poultry and breeding personnel. Most of the common sterilization and dust collection devices for livestock and poultry housings on the market are too high energy consumption, and easy to cause secondary pollution. Therefore, an environmental purification device was designed to absorb dust in the air and kill harmful bacteria by using high voltage pulsed electric field. The device was designed using phase control principle and bundled conductor. COMSOL Multiphysics software was used to simulate the layout of single conductor, twin bundled conductor and quad bundled conductor. It was found that when the conductor was designed as twin bundled conductor or quad bundled conductor, the gradient distribution of spatial electric field intensity was more uniform and the downward trend of electric field was slower, which could effectively improve the dust collection and sterilization efficiency of the device. At the same time, a variety of electric field environments can be set up by using phase difference to meet different environmental requirements of livestock and poultry. The compound dust collection and sterilization device with phase-controlled bundled conductor for livestock and poultry housing space includes high voltage pulse generator, bundled conductor, high voltage special timer, insulator and other parts, which can effectively reduce the dust content in the air, the concentration of pathogenic bacteria, harmful gases, etc. after assembly test and can also reduce the humidity in the livestock and poultry housings.","PeriodicalId":44197,"journal":{"name":"INMATEH-Agricultural Engineering","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43199162","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}
In order to fully explore the influence of different pressure methods on the growth characteristics of buckwheat, a pressure test device with adjustable press force, and easy to replace the press wheel was designed. Using the dry matter quality of buckwheat roots, stems, leaves at seedling stage, plant height, number of main stem nodes, number of main stem branches, grain number per plant, grain weight per plant, and yield as evaluation indexes, single factor test on press force was carried out, and three-factor and three-level orthogonal test was carried out too with press wheel outer diameter, press force and press wheel type as factors. The results showed that the index values of buckwheat showed a trend of first increasing and then decreasing with the increase of press force. When the press force was 450 N, the growth and development of buckwheat performed best. The effects of press wheel outer diameter, press force, and press wheel type on growth characteristics of buckwheat was different. The effects of press force and press wheel type on the indexes were greater than that of press wheel outer diameter. The optimal pressure methods of buckwheat sowing are as follows: the press wheel outer diameter is 300 mm, the press force is 450 N, and the press wheel type is conical combined wheel. The results of this study could provide reference for the improvement of high-yield mechanized sowing technology of buckwheat and the design of rational pressure device.
{"title":"EXPERIMENTAL STUDY ON THE EFFECTS OF DIFFERENT PRESSURE METHODS ON THE GROWTH CHARACTERISTICS OF BUCKWHEAT","authors":"Yun Liu, Weiran Lv, Lihong Li, Bing Xu, Decong Zheng, Qi Lu","doi":"10.35633/inmateh-70-26","DOIUrl":"https://doi.org/10.35633/inmateh-70-26","url":null,"abstract":"In order to fully explore the influence of different pressure methods on the growth characteristics of buckwheat, a pressure test device with adjustable press force, and easy to replace the press wheel was designed. Using the dry matter quality of buckwheat roots, stems, leaves at seedling stage, plant height, number of main stem nodes, number of main stem branches, grain number per plant, grain weight per plant, and yield as evaluation indexes, single factor test on press force was carried out, and three-factor and three-level orthogonal test was carried out too with press wheel outer diameter, press force and press wheel type as factors. The results showed that the index values of buckwheat showed a trend of first increasing and then decreasing with the increase of press force. When the press force was 450 N, the growth and development of buckwheat performed best. The effects of press wheel outer diameter, press force, and press wheel type on growth characteristics of buckwheat was different. The effects of press force and press wheel type on the indexes were greater than that of press wheel outer diameter. The optimal pressure methods of buckwheat sowing are as follows: the press wheel outer diameter is 300 mm, the press force is 450 N, and the press wheel type is conical combined wheel. The results of this study could provide reference for the improvement of high-yield mechanized sowing technology of buckwheat and the design of rational pressure device.","PeriodicalId":44197,"journal":{"name":"INMATEH-Agricultural Engineering","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48588437","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}
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