Pub Date : 2022-06-30DOI: 10.1109/eeae53789.2022.9831420
V. Gandova, I. Petrova
The objective of this study is to investigate emulsion stability between soybean oil-water-soybean protein isolate (SI) system. The protein added as stabilizing emulsion, with different quantity 1 and 3 percent. Thermodynamic parameters Gibbs free energy, enthalpy and entropy for each emulsion were calculated. The samples of emulsions prepared with different pH interval. Microscopic observations and turbidity of all emulsions were prepared and used for determined stability of presented emulsions.
{"title":"Investigation of emulsion stability in Soybean protein isolates – Soybean oil – Water system","authors":"V. Gandova, I. Petrova","doi":"10.1109/eeae53789.2022.9831420","DOIUrl":"https://doi.org/10.1109/eeae53789.2022.9831420","url":null,"abstract":"The objective of this study is to investigate emulsion stability between soybean oil-water-soybean protein isolate (SI) system. The protein added as stabilizing emulsion, with different quantity 1 and 3 percent. Thermodynamic parameters Gibbs free energy, enthalpy and entropy for each emulsion were calculated. The samples of emulsions prepared with different pH interval. Microscopic observations and turbidity of all emulsions were prepared and used for determined stability of presented emulsions.","PeriodicalId":441906,"journal":{"name":"2022 8th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120924290","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}
Pub Date : 2022-06-30DOI: 10.1109/eeae53789.2022.9831323
B. Evstatiev, N. Evstatieva, N. Codreanu
In this study is developed an algorithm for operation of an electronic system for monitoring and control of electric submersible pumps. It ensures fault-free operation by controlling the pump and power characteristics in several situations – before the pump is started, during the pump start up and during normal operation. The specifics of connecting and disconnecting submersible pumps to/from a water supply installation are also analyzed and a number of measures for ensuring accident-free exploitation are suggested. A structure of the electronic system is also developed and presented using a block diagram.
{"title":"Electronic System for Control of a Submersible Water Pump","authors":"B. Evstatiev, N. Evstatieva, N. Codreanu","doi":"10.1109/eeae53789.2022.9831323","DOIUrl":"https://doi.org/10.1109/eeae53789.2022.9831323","url":null,"abstract":"In this study is developed an algorithm for operation of an electronic system for monitoring and control of electric submersible pumps. It ensures fault-free operation by controlling the pump and power characteristics in several situations – before the pump is started, during the pump start up and during normal operation. The specifics of connecting and disconnecting submersible pumps to/from a water supply installation are also analyzed and a number of measures for ensuring accident-free exploitation are suggested. A structure of the electronic system is also developed and presented using a block diagram.","PeriodicalId":441906,"journal":{"name":"2022 8th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123151489","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}
Pub Date : 2022-06-30DOI: 10.1109/eeae53789.2022.9831328
P. Osadchuk, D. P. Domuschi, Y. Enakiev, B. Elenov
An experimental setup with ultrasonic generator for purification of sunflower oil under the influence of ultrasonic field has been developed. The options for using the ultrasonic field for primary cleaning of sunflower oil are considered. Experimental studies of the effect of ultrasonic cavitation by changing the frequency and power of the electrical signal supplied to a magnetostrictive transmitter are presented. The technological parameters of the process of purification of sunflower oil by ultrasonic treatment have been determined.
{"title":"Cleaning Sunflower Oil with the Use of the Ultrasonic Field","authors":"P. Osadchuk, D. P. Domuschi, Y. Enakiev, B. Elenov","doi":"10.1109/eeae53789.2022.9831328","DOIUrl":"https://doi.org/10.1109/eeae53789.2022.9831328","url":null,"abstract":"An experimental setup with ultrasonic generator for purification of sunflower oil under the influence of ultrasonic field has been developed. The options for using the ultrasonic field for primary cleaning of sunflower oil are considered. Experimental studies of the effect of ultrasonic cavitation by changing the frequency and power of the electrical signal supplied to a magnetostrictive transmitter are presented. The technological parameters of the process of purification of sunflower oil by ultrasonic treatment have been determined.","PeriodicalId":441906,"journal":{"name":"2022 8th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE)","volume":"22 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120974856","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}
Pub Date : 2022-06-30DOI: 10.1109/eeae53789.2022.9831299
I. Prodanov, M. Ilieva-Obretenova
The study uses saved energy (the expected annual economy of electrical energy) to describe the impact of energy conservation measures (ECM) on reducing CO2 emissions. Measure 1 (M1) is Reconstruction of the electric drive and control of a basic hoisting machine. Measure 2 (M2) is Reconstruction of the electric drive and control of a fan. A technological analysis for determining losses in percent without implementation of M1 and M2 was made. An investment analysis to determine energy savings in percent and in kWh/y with implementation of M1 and M2 was performed. The value in kWh/y is adjusted with a coefficient of emission factor (CO2) for electrical energy. Further research will involve an analysis of other energy conservation measures and their impact on the reduction of harmful emissions. In the long term and on a larger scale the improvement of the energy balance of technological systems will be favorable for slowing down climatic changes.
{"title":"Impact of Two Energy Conservation Measures on Reducing CO2 Emissions","authors":"I. Prodanov, M. Ilieva-Obretenova","doi":"10.1109/eeae53789.2022.9831299","DOIUrl":"https://doi.org/10.1109/eeae53789.2022.9831299","url":null,"abstract":"The study uses saved energy (the expected annual economy of electrical energy) to describe the impact of energy conservation measures (ECM) on reducing CO2 emissions. Measure 1 (M1) is Reconstruction of the electric drive and control of a basic hoisting machine. Measure 2 (M2) is Reconstruction of the electric drive and control of a fan. A technological analysis for determining losses in percent without implementation of M1 and M2 was made. An investment analysis to determine energy savings in percent and in kWh/y with implementation of M1 and M2 was performed. The value in kWh/y is adjusted with a coefficient of emission factor (CO2) for electrical energy. Further research will involve an analysis of other energy conservation measures and their impact on the reduction of harmful emissions. In the long term and on a larger scale the improvement of the energy balance of technological systems will be favorable for slowing down climatic changes.","PeriodicalId":441906,"journal":{"name":"2022 8th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125808081","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}
Pub Date : 2022-06-30DOI: 10.1109/eeae53789.2022.9831306
Roumen Gadjev
The researching and examinations of the irrigation processes, as well the processes causing erosion of the soil furrow beds and the alteration of their state in practice is done based on the flow velocities averaged-out in time. Through the hydraulic researches, it is known however that the real, actual velocities are pulsation velocities into the cross section of the water flow, which are irregularly variable in time and different from the averaged flow velocities. In view of this, in the present work the relations were realized on the basis of the pulsation velocities of the water flows. On this basis, a water erosion approach and method is offered for prediction of the erosive state and stability of the furrows for irrigation.
{"title":"Water Erosion Hydrodinamical Impact on the Soil at Iirigation Processes","authors":"Roumen Gadjev","doi":"10.1109/eeae53789.2022.9831306","DOIUrl":"https://doi.org/10.1109/eeae53789.2022.9831306","url":null,"abstract":"The researching and examinations of the irrigation processes, as well the processes causing erosion of the soil furrow beds and the alteration of their state in practice is done based on the flow velocities averaged-out in time. Through the hydraulic researches, it is known however that the real, actual velocities are pulsation velocities into the cross section of the water flow, which are irregularly variable in time and different from the averaged flow velocities. In view of this, in the present work the relations were realized on the basis of the pulsation velocities of the water flows. On this basis, a water erosion approach and method is offered for prediction of the erosive state and stability of the furrows for irrigation.","PeriodicalId":441906,"journal":{"name":"2022 8th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116132612","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}
Pub Date : 2022-06-30DOI: 10.1109/eeae53789.2022.9831205
E. Nazmieva, Guzel Chumarina, L. Ilikova, Y. Valeeva
The Internet and the World Wide Web (www) have fundamentally changed the practice of distance teaching and distance learning which has evolved over the past years. Today, online learning begins to really replace the full-time form of acquiring knowledge. Russian universities are actively introducing online courses designed to replace classes within the walls of educational institutions. Thousands of educational institutions have already adapted various forms of online education for their needs. Review and consideration of the sources and trends of modern online learning is an important step towards it.The authors base their research on the analysis and synthesis of Russian and international experience evolving main characteristics of modality types of e-learning, online-learning and distance learning. ICTs have the potential to facilitate collaboration, exchange and access to learning resources. MOOCs concept can be applied in the system of higher full-time and part-time education through the mechanisms of creating mixed forms that combine a face-to-face approach (usually in the form of tutoring), online lectures and practical classes.
{"title":"Online Education: Modern Management in University systemy","authors":"E. Nazmieva, Guzel Chumarina, L. Ilikova, Y. Valeeva","doi":"10.1109/eeae53789.2022.9831205","DOIUrl":"https://doi.org/10.1109/eeae53789.2022.9831205","url":null,"abstract":"The Internet and the World Wide Web (www) have fundamentally changed the practice of distance teaching and distance learning which has evolved over the past years. Today, online learning begins to really replace the full-time form of acquiring knowledge. Russian universities are actively introducing online courses designed to replace classes within the walls of educational institutions. Thousands of educational institutions have already adapted various forms of online education for their needs. Review and consideration of the sources and trends of modern online learning is an important step towards it.The authors base their research on the analysis and synthesis of Russian and international experience evolving main characteristics of modality types of e-learning, online-learning and distance learning. ICTs have the potential to facilitate collaboration, exchange and access to learning resources. MOOCs concept can be applied in the system of higher full-time and part-time education through the mechanisms of creating mixed forms that combine a face-to-face approach (usually in the form of tutoring), online lectures and practical classes.","PeriodicalId":441906,"journal":{"name":"2022 8th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122533736","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}
Pub Date : 2022-06-30DOI: 10.1109/eeae53789.2022.9831317
Donika Dimanova, Zdravko Kuzmanov
Knowledge of adverse phenomena, especially in the increasingly variable and volatile climate, enables better understanding of risks, their management and minimization of adverse impacts. This implies the availability of sufficiently reliable mathematical models that can result in accurate predictions of the evolution of the crisis natural phenomenon in question. This report examines and analyzes the frequency of intense precipitation for the territory of Shumen district through orthogonal Chebyshev polynomials.
{"title":"Modelling the Probability of Intense Rainfall Events","authors":"Donika Dimanova, Zdravko Kuzmanov","doi":"10.1109/eeae53789.2022.9831317","DOIUrl":"https://doi.org/10.1109/eeae53789.2022.9831317","url":null,"abstract":"Knowledge of adverse phenomena, especially in the increasingly variable and volatile climate, enables better understanding of risks, their management and minimization of adverse impacts. This implies the availability of sufficiently reliable mathematical models that can result in accurate predictions of the evolution of the crisis natural phenomenon in question. This report examines and analyzes the frequency of intense precipitation for the territory of Shumen district through orthogonal Chebyshev polynomials.","PeriodicalId":441906,"journal":{"name":"2022 8th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126937789","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}
Pub Date : 2022-06-30DOI: 10.1109/eeae53789.2022.9831421
V. Gandova, N. Petkova, Darina D. Georgieva, A. Stoyanova, Y. Koleva
Different investigations at Clary sage (Salvia sclarea L.) essential oil were presented. Antioxidant properties of the oil were evaluated by four different methods – DPPH, ABTS, FRAP, and CUPRAC. The oxidative stability of clary sage essential oil was provided at two temperatures 6 and 25°C. Using the Arrhenius equation the rate constant of the oxidative process was determined. Activating parameters as activation energy (Ea), enthalpy of activation (ΔH++), the entropy of activation (ΔS++), and Gibbs free energy of activation (ΔG++) were calculated.
{"title":"Salvia sclarea essential oil: Antioxidant capasity, kinetic and thermodynamic investigation","authors":"V. Gandova, N. Petkova, Darina D. Georgieva, A. Stoyanova, Y. Koleva","doi":"10.1109/eeae53789.2022.9831421","DOIUrl":"https://doi.org/10.1109/eeae53789.2022.9831421","url":null,"abstract":"Different investigations at Clary sage (Salvia sclarea L.) essential oil were presented. Antioxidant properties of the oil were evaluated by four different methods – DPPH, ABTS, FRAP, and CUPRAC. The oxidative stability of clary sage essential oil was provided at two temperatures 6 and 25°C. Using the Arrhenius equation the rate constant of the oxidative process was determined. Activating parameters as activation energy (Ea), enthalpy of activation (ΔH++), the entropy of activation (ΔS++), and Gibbs free energy of activation (ΔG++) were calculated.","PeriodicalId":441906,"journal":{"name":"2022 8th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126931690","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}
Pub Date : 2022-06-30DOI: 10.1109/eeae53789.2022.9831375
Tsvyatko Bikov, G. Mihaylov, T. Iliev, I. Stoyanov
Drone technology is no longer available for military organizations only. It is so advanced and inexpensive, that every technology enthusiast could purchase and start using it in just a couple of minutes, without the need of any specific training. This level of accessibility of the drone technology allows its application to be expanded and reach various niche industries, including agriculture. Amongst the sheer activities that the modern drones are capable of, there is one that could help the nowadays farmer not only reduce their need on additional manpower, but also their monthly cost required to raise and protect their livestock, regularly monitoring it from the sky.
{"title":"Drone Surveillance in the Modern Agriculture","authors":"Tsvyatko Bikov, G. Mihaylov, T. Iliev, I. Stoyanov","doi":"10.1109/eeae53789.2022.9831375","DOIUrl":"https://doi.org/10.1109/eeae53789.2022.9831375","url":null,"abstract":"Drone technology is no longer available for military organizations only. It is so advanced and inexpensive, that every technology enthusiast could purchase and start using it in just a couple of minutes, without the need of any specific training. This level of accessibility of the drone technology allows its application to be expanded and reach various niche industries, including agriculture. Amongst the sheer activities that the modern drones are capable of, there is one that could help the nowadays farmer not only reduce their need on additional manpower, but also their monthly cost required to raise and protect their livestock, regularly monitoring it from the sky.","PeriodicalId":441906,"journal":{"name":"2022 8th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134085747","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}
Pub Date : 2022-06-30DOI: 10.1109/eeae53789.2022.9831404
A. Manukova, K. Krastev, I. Stoev
The report addresses issues related to the concentration of monitoring of air pollutants from domestic and industrial processes. Methods and methodology for measuring air pollutants are presented. A system for monitoring air pollutants from domestic and industrial processes has been synthesized. A prototype of the electronic system has been developed and a study has been conducted proving that the obtained experimental results and estimates fall within the acceptable limits set by the standards.
{"title":"Concentration for monitoring of air pollutants of domestic and industrial nature","authors":"A. Manukova, K. Krastev, I. Stoev","doi":"10.1109/eeae53789.2022.9831404","DOIUrl":"https://doi.org/10.1109/eeae53789.2022.9831404","url":null,"abstract":"The report addresses issues related to the concentration of monitoring of air pollutants from domestic and industrial processes. Methods and methodology for measuring air pollutants are presented. A system for monitoring air pollutants from domestic and industrial processes has been synthesized. A prototype of the electronic system has been developed and a study has been conducted proving that the obtained experimental results and estimates fall within the acceptable limits set by the standards.","PeriodicalId":441906,"journal":{"name":"2022 8th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131599532","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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