Pub Date : 2019-04-11DOI: 10.30724/1998-9903-2019-21-1-2-3-9
A. Laptev, M. M. Basharov, E. A. Lapteva
Abstract: Energy coefficients and energy efficiency criteria for heat and mass transfer devices are considered. With application of these coefficients and criteria, modified complexes for the energy separation efficiency of packed-type gas separators aimed to remove liquid aerosols are obtained. Technical characteristics of structured and random packings are given and calculations of energy complexes and of the power required for supplying gas to the purification are made. It is determined that the spiral-prismatic packing is most efficient among all considered random packings and the spiral wound packing RGN-5 (manufactured by LLC EPC “Inzhekhim”) is most efficient among all considered structured packings.
{"title":"INDICATORS OF ENERGY AND SEPARATION EFFICIENCY OF GAS SEPARATORS INTENDED TO REMOVE AEROSOL DROPLETS","authors":"A. Laptev, M. M. Basharov, E. A. Lapteva","doi":"10.30724/1998-9903-2019-21-1-2-3-9","DOIUrl":"https://doi.org/10.30724/1998-9903-2019-21-1-2-3-9","url":null,"abstract":"Abstract: Energy coefficients and energy efficiency criteria for heat and mass transfer devices are considered. With application of these coefficients and criteria, modified complexes for the energy separation efficiency of packed-type gas separators aimed to remove liquid aerosols are obtained. Technical characteristics of structured and random packings are given and calculations of energy complexes and of the power required for supplying gas to the purification are made. It is determined that the spiral-prismatic packing is most efficient among all considered random packings and the spiral wound packing RGN-5 (manufactured by LLC EPC “Inzhekhim”) is most efficient among all considered structured packings.","PeriodicalId":33495,"journal":{"name":"Izvestiia vysshikh uchebnykh zavedenii Problemy energetiki","volume":"70 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74629052","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 : 2019-04-11DOI: 10.30724/1998-9903-2019-21-1-2-111-119
A. N. Borisov, R. R. Shiriev
Abstract: The original design of a light device with an led source of optical radiation, the light- emitting element of which is made in the form of a half-ellipsoid, is presented, which allows to minimize passive losses of crystal radiation and increase the efficiency of the radiator. The lamp can be used as a point light source in optical and electronic equipment, as a lighting device, night lamp and other types of lighting devices.
{"title":"LED SOURCE OF LIGHT WITH HIGH LIGHT CIRCUIT","authors":"A. N. Borisov, R. R. Shiriev","doi":"10.30724/1998-9903-2019-21-1-2-111-119","DOIUrl":"https://doi.org/10.30724/1998-9903-2019-21-1-2-111-119","url":null,"abstract":"Abstract: The original design of a light device with an led source of optical radiation, the light- emitting element of which is made in the form of a half-ellipsoid, is presented, which allows to minimize passive losses of crystal radiation and increase the efficiency of the radiator. The lamp can be used as a point light source in optical and electronic equipment, as a lighting device, night lamp and other types of lighting devices.","PeriodicalId":33495,"journal":{"name":"Izvestiia vysshikh uchebnykh zavedenii Problemy energetiki","volume":"284 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74949599","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 : 2019-02-27DOI: 10.30724/1998-9903-2018-20-11-12-99-106
L. Fetisov, N. V. Rozhencova, O. A. Bulatov
This article is devoted to development of actions for improvement of quality of the electric power in low voltage networks, by installation of booster transformers (BT), and to calculation of economic effect in comparison with alternative versions of the solution of tasks of ensuring reliable, high-quality and available power supply of consumers.
{"title":"IMPROVING THE QUALITY OF ELECTRIC POWER IN LOW VOLTAGE NETWORKS","authors":"L. Fetisov, N. V. Rozhencova, O. A. Bulatov","doi":"10.30724/1998-9903-2018-20-11-12-99-106","DOIUrl":"https://doi.org/10.30724/1998-9903-2018-20-11-12-99-106","url":null,"abstract":"This article is devoted to development of actions for improvement of quality of the electric power in low voltage networks, by installation of booster transformers (BT), and to calculation of economic effect in comparison with alternative versions of the solution of tasks of ensuring reliable, high-quality and available power supply of consumers.","PeriodicalId":33495,"journal":{"name":"Izvestiia vysshikh uchebnykh zavedenii Problemy energetiki","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76722212","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 : 2019-02-27DOI: 10.30724/1998-9903-2018-20-11-12-81-92
E. Gracheva, A. Alimova
In the article it is devoted the analysis and researches of origins and values of possible errors from not accounting of the main defining characteristics when calculating losses of the electric power on shop networks of a low tension. It is proved that in case of determination of losses of the electric power in lines of shop networks it is necessary to consider influence of the following parameters of the equipment: the heating of conductors caused by passing of current of loading through conductors and ambient temperature; resistance of contact joints of switching devices and their number; type of the load graph; ambient temperatures. The diagram of a shop network and daily load graphs of customers of one of the enterprises is researched. Errors of calculations of losses of the electric power are calculated and the analysis of influence of parameters of the equipment on value of losses of the electric power is carried out. The absence of reliable information about elements of shop networks of a low tension and not accounting of the determining leads to an error 5 - 80% in case of computation of losses of the electric power in the systems of industrial electrical power supply.
{"title":"POSSIBLE ERRORS OF CALCULATIONS OF LOSSES OF THE ELECTRIC POWER ON SHOP INDUSTRIAL NETWORKS","authors":"E. Gracheva, A. Alimova","doi":"10.30724/1998-9903-2018-20-11-12-81-92","DOIUrl":"https://doi.org/10.30724/1998-9903-2018-20-11-12-81-92","url":null,"abstract":"In the article it is devoted the analysis and researches of origins and values of possible errors from not accounting of the main defining characteristics when calculating losses of the electric power on shop networks of a low tension. It is proved that in case of determination of losses of the electric power in lines of shop networks it is necessary to consider influence of the following parameters of the equipment: the heating of conductors caused by passing of current of loading through conductors and ambient temperature; resistance of contact joints of switching devices and their number; type of the load graph; ambient temperatures. The diagram of a shop network and daily load graphs of customers of one of the enterprises is researched. Errors of calculations of losses of the electric power are calculated and the analysis of influence of parameters of the equipment on value of losses of the electric power is carried out. The absence of reliable information about elements of shop networks of a low tension and not accounting of the determining leads to an error 5 - 80% in case of computation of losses of the electric power in the systems of industrial electrical power supply.","PeriodicalId":33495,"journal":{"name":"Izvestiia vysshikh uchebnykh zavedenii Problemy energetiki","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89687088","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 : 2019-02-27DOI: 10.30724/1998-9903-2018-20-11-12-56-64
R. F. Yarish, A. Garifullina, R. I. Garifullin, A. Yakunin
The analysis of the operating modes of the frequency-controlled electric drive of the pumpjack with the use of dynamometer cards, wattmeter diagrams and the mathematical model of the pump-jack, the effect of the shape of the dynamometer card on the operating mode of the electric motor of the pumpjack is determined. The ways of protection of the transistors in the frequency converter from voltage increase are considered at the transition of the electric motor to the regeneration.
{"title":"INVESTIGATION OF OPERATING MODES OF FREQUENCY-REGULATED ELECTRIC DRIVE OF PUMPJACK","authors":"R. F. Yarish, A. Garifullina, R. I. Garifullin, A. Yakunin","doi":"10.30724/1998-9903-2018-20-11-12-56-64","DOIUrl":"https://doi.org/10.30724/1998-9903-2018-20-11-12-56-64","url":null,"abstract":"The analysis of the operating modes of the frequency-controlled electric drive of the pumpjack with the use of dynamometer cards, wattmeter diagrams and the mathematical model of the pump-jack, the effect of the shape of the dynamometer card on the operating mode of the electric motor of the pumpjack is determined. The ways of protection of the transistors in the frequency converter from voltage increase are considered at the transition of the electric motor to the regeneration.","PeriodicalId":33495,"journal":{"name":"Izvestiia vysshikh uchebnykh zavedenii Problemy energetiki","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73565795","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 : 2019-02-27DOI: 10.30724/1998-9903-2018-20-11-12-133-143
А. Afanasiev, N. Rybushkin, K. A. Kilimanov
The object of research is a hybrid power installation of a bus with a diesel engine and a synchronous electric motor. The purpose of the work is the development of engineering models of a synchronous electric motor and a diesel engine, the search for optimal electric currents control laws for electric motor and optimal bus moving laws with a hybrid power installation for general energy consumption. Synchronous electric drive and internal combustion engine models were used, convenient for research, analytical and numerical methods of parametric optimization and optimal control were used. Parameter values and laws of vehicle motion with energy saving are obtained.
{"title":"MODELING AND OPTIMIZATION ON ENERGY CONSUMPTION OF A HYBRID POWER INSTALLATION FOR A VEHICLE","authors":"А. Afanasiev, N. Rybushkin, K. A. Kilimanov","doi":"10.30724/1998-9903-2018-20-11-12-133-143","DOIUrl":"https://doi.org/10.30724/1998-9903-2018-20-11-12-133-143","url":null,"abstract":"The object of research is a hybrid power installation of a bus with a diesel engine and a synchronous electric motor. The purpose of the work is the development of engineering models of a synchronous electric motor and a diesel engine, the search for optimal electric currents control laws for electric motor and optimal bus moving laws with a hybrid power installation for general energy consumption. Synchronous electric drive and internal combustion engine models were used, convenient for research, analytical and numerical methods of parametric optimization and optimal control were used. Parameter values and laws of vehicle motion with energy saving are obtained.","PeriodicalId":33495,"journal":{"name":"Izvestiia vysshikh uchebnykh zavedenii Problemy energetiki","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84249280","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 : 2019-02-27DOI: 10.30724/1998-9903-2018-20-11-12-3-15
N. Savina, N. S. Bodrug
The article deals with the issue of assessing the possibility of ensuring the quality of electricity in terms of voltage deviation by consumers. The analysis of the characteristics of modern markets, energy and power. It is revealed that the transition of the new market economy is left without the possibility of regulating the voltage consumers, which are parties to retail markets. The order of an assessment of possibility of providing the required quality of the electric power on conclusions of electric receivers is offered and its realization on the example of real electric networks is shown. Recommendations were developed to address the problem of voltage regulation at the consumer.
{"title":"TO ASSESS THE POSSIBILITY OF ENSURING THE QUALITY OF ELECTRICITY IN TERMS OF VOLTAGE DEVIATIONS OF CONSUMERS","authors":"N. Savina, N. S. Bodrug","doi":"10.30724/1998-9903-2018-20-11-12-3-15","DOIUrl":"https://doi.org/10.30724/1998-9903-2018-20-11-12-3-15","url":null,"abstract":"The article deals with the issue of assessing the possibility of ensuring the quality of electricity in terms of voltage deviation by consumers. The analysis of the characteristics of modern markets, energy and power. It is revealed that the transition of the new market economy is left without the possibility of regulating the voltage consumers, which are parties to retail markets. The order of an assessment of possibility of providing the required quality of the electric power on conclusions of electric receivers is offered and its realization on the example of real electric networks is shown. Recommendations were developed to address the problem of voltage regulation at the consumer.","PeriodicalId":33495,"journal":{"name":"Izvestiia vysshikh uchebnykh zavedenii Problemy energetiki","volume":"61 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82343176","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 : 2019-02-27DOI: 10.30724/1998-9903-2018-20-11-12-107-117
I. Donskoy
The work is devoted to the numerical study of the process of downdraft fixed-bed gasification of woody biomass. Such processes are used to produce combustible gases at lowcapacity power plants. To improve the quality of the produced gas, it is proposed to use a mixture of wood fuel with a non-combustible material that can exhibit catalytic activity in the decomposition of undesired tary products. Adding a non-combustible material leads to lower heat value of fuel mixture, but contributes to a deeper gas purification. The aim of the study is to select the optimal "active material / wood fuel" ratio and to determine the minimum material activity at which its addition to the fuel becomes effective.
{"title":"MATHEMATICAL MODELLING OF WOOD GASIFICATION WITH TARRY PRODUCTS DECOMPOSITION ON ACTIVE MATERIAL PARTICLES","authors":"I. Donskoy","doi":"10.30724/1998-9903-2018-20-11-12-107-117","DOIUrl":"https://doi.org/10.30724/1998-9903-2018-20-11-12-107-117","url":null,"abstract":"The work is devoted to the numerical study of the process of downdraft fixed-bed gasification of woody biomass. Such processes are used to produce combustible gases at lowcapacity power plants. To improve the quality of the produced gas, it is proposed to use a mixture of wood fuel with a non-combustible material that can exhibit catalytic activity in the decomposition of undesired tary products. Adding a non-combustible material leads to lower heat value of fuel mixture, but contributes to a deeper gas purification. The aim of the study is to select the optimal \"active material / wood fuel\" ratio and to determine the minimum material activity at which its addition to the fuel becomes effective.","PeriodicalId":33495,"journal":{"name":"Izvestiia vysshikh uchebnykh zavedenii Problemy energetiki","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74277656","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 : 2019-02-27DOI: 10.30724/1998-9903-2018-20-11-12-65-80
N. Moskalenko, I. Dodov, G. V. Kayumova, A. R. Khaertdinova, M. Khamidullina, E. G. Sheshukov
High temperature atlass of spectral lines parameters of the combustion production of energy fuels and their use for modeling the radiation characteristics of the optically active ingredients and radiation heat transfer in high structurally inhomogeneous multicomponent media are considering. The model of the absorption bands to determine the functions of spectral transmission and parameterization according to the results of numerical modelation performed by direct calculation of the fine structure of the emission (absorption) spectra, followed by their numerical integration. The results of the calculations are compared with the data of experimental studies.
{"title":"MODELATION OF THE RADIATION CHARACTERISTICS OF THE GAS PHASE COMBUSTION PRODUCTS BASED ON HIGH THEMPERATURE ATLASES OF SPECTRAL LINE PARAMETERS","authors":"N. Moskalenko, I. Dodov, G. V. Kayumova, A. R. Khaertdinova, M. Khamidullina, E. G. Sheshukov","doi":"10.30724/1998-9903-2018-20-11-12-65-80","DOIUrl":"https://doi.org/10.30724/1998-9903-2018-20-11-12-65-80","url":null,"abstract":"High temperature atlass of spectral lines parameters of the combustion production of energy fuels and their use for modeling the radiation characteristics of the optically active ingredients and radiation heat transfer in high structurally inhomogeneous multicomponent media are considering. The model of the absorption bands to determine the functions of spectral transmission and parameterization according to the results of numerical modelation performed by direct calculation of the fine structure of the emission (absorption) spectra, followed by their numerical integration. The results of the calculations are compared with the data of experimental studies.","PeriodicalId":33495,"journal":{"name":"Izvestiia vysshikh uchebnykh zavedenii Problemy energetiki","volume":"290 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90798622","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 : 2019-02-27DOI: 10.30724/1998-9903-2018-20-11-12-16-26
A. Vasev, R. Misbakhov, A. I. Ziganshina, V. V. Fedotov
The article discusses an economical way to deploy diagnostic monitoring systems for high-voltage electrical units through a combination of passive fiber-optic systems for collecting and transmitting technological information of SCADA with diagnostic information transmission systems of systems for continuous technical diagnostics in them. The usage of existing communication network of SCADA will increase economy and expand the scope of continuous diagnostic systems.
{"title":"COMBINE COMMUNICATIONS OPTICAL NETWORK OF SCADA OF ELECTRIC POWER STATION AND SUBSTATION","authors":"A. Vasev, R. Misbakhov, A. I. Ziganshina, V. V. Fedotov","doi":"10.30724/1998-9903-2018-20-11-12-16-26","DOIUrl":"https://doi.org/10.30724/1998-9903-2018-20-11-12-16-26","url":null,"abstract":"The article discusses an economical way to deploy diagnostic monitoring systems for high-voltage electrical units through a combination of passive fiber-optic systems for collecting and transmitting technological information of SCADA with diagnostic information transmission systems of systems for continuous technical diagnostics in them. The usage of existing communication network of SCADA will increase economy and expand the scope of continuous diagnostic systems.","PeriodicalId":33495,"journal":{"name":"Izvestiia vysshikh uchebnykh zavedenii Problemy energetiki","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79654234","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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