Pub Date : 2018-12-27DOI: 10.20998/2078-774X.2018.12.12
A. Minko
The review of the state of the problem of the design of modern air cooling units (A С U) used in the chemical, oil and gas and metallurgical industries is given. The main provisions of the method of establishment and Newton's method for determining the operational parameters of a heat exchanger are generalized. On the basis of a combination of the methods considered, the design of a low-flow condensate condensation condenser has been developed, its technical parameters and the general model of the equipment layout are given.
综述了现代空冷装置(A С U)在化工、油气和冶金工业中的设计问题。概括了建立法和牛顿法确定换热器运行参数的主要规定。在综合考虑多种方法的基础上，设计了一种低流量冷凝水冷凝冷凝器，给出了其技术参数和设备布置的总体模型。
{"title":"Theory and Practice of Creation of Modern Air-Cooling Equipment of General Industrial Appointment","authors":"A. Minko","doi":"10.20998/2078-774X.2018.12.12","DOIUrl":"https://doi.org/10.20998/2078-774X.2018.12.12","url":null,"abstract":"The review of the state of the problem of the design of modern air cooling units (A С U) used in the chemical, oil and gas and metallurgical industries is given. The main provisions of the method of establishment and Newton's method for determining the operational parameters of a heat exchanger are generalized. On the basis of a combination of the methods considered, the design of a low-flow condensate condensation condenser has been developed, its technical parameters and the general model of the equipment layout are given.","PeriodicalId":416126,"journal":{"name":"NTU \"KhPI\" Bulletin: Power and heat engineering processes and equipment","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131424831","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 : 2018-12-27DOI: 10.20998/2078-774x.2018.12.14
O. Slabchenko, V. Goloshchapov
{"title":"Axial Turbine Stage Characteristics","authors":"O. Slabchenko, V. Goloshchapov","doi":"10.20998/2078-774x.2018.12.14","DOIUrl":"https://doi.org/10.20998/2078-774x.2018.12.14","url":null,"abstract":"","PeriodicalId":416126,"journal":{"name":"NTU \"KhPI\" Bulletin: Power and heat engineering processes and equipment","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132824048","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 : 2018-12-27DOI: 10.20998/2078-774x.2018.13.06
A. Yefimov, Yurii Romashov, T. Yesypenko, Dmytro Chibisov
{"title":"Numerical Methods Used for the Solution of Heat Conductivity Problems to Study the Temperature State of Ceramic Nuclear Fuel","authors":"A. Yefimov, Yurii Romashov, T. Yesypenko, Dmytro Chibisov","doi":"10.20998/2078-774x.2018.13.06","DOIUrl":"https://doi.org/10.20998/2078-774x.2018.13.06","url":null,"abstract":"","PeriodicalId":416126,"journal":{"name":"NTU \"KhPI\" Bulletin: Power and heat engineering processes and equipment","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114495167","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 : 2018-12-27DOI: 10.20998/2078-774x.2018.13.08
V. Yurko, A. Ganzha
{"title":"Improving Recuperative Air Heater to Enlarge its Application Area Provided that the Dust-Laden Heat Carrier is Used","authors":"V. Yurko, A. Ganzha","doi":"10.20998/2078-774x.2018.13.08","DOIUrl":"https://doi.org/10.20998/2078-774x.2018.13.08","url":null,"abstract":"","PeriodicalId":416126,"journal":{"name":"NTU \"KhPI\" Bulletin: Power and heat engineering processes and equipment","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131757709","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 : 2018-12-27DOI: 10.20998/2078-774X.2018.13.13
E. Chaikovskaya
{"title":"Integrated Simulation of the Gas-Turbine Cogeneration System Operating on the Biogas Fuel","authors":"E. Chaikovskaya","doi":"10.20998/2078-774X.2018.13.13","DOIUrl":"https://doi.org/10.20998/2078-774X.2018.13.13","url":null,"abstract":"","PeriodicalId":416126,"journal":{"name":"NTU \"KhPI\" Bulletin: Power and heat engineering processes and equipment","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131357359","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 : 2018-12-27DOI: 10.20998/2078-774X.2018.13.01
O. Shubenko, V. Sarapin
Drawbacks of the most known software systems used for the calculated analysis of heat balance diagrams were analyzed. A short description of the software program Thermal Scheme including the main peculiarities of it has been given. This software system allows us to carry out the calculated analysis of heat balance diagrams using the real properties of actuating media. A list of the elements the most frequently used for the calculated analysis of heat balance diagrams has been given. The equation systems that are used for the calculation of the elements of heat balance diagrams using the Thermal Scheme software system were also given. To demonstrate the opportunities of the suggested software system we carried out as an example the calculated analysis of the heat balance diagram used for a low-temperature separation of the natural gas using the turboexpander unit. The calculated analysis data on the estimation of material and power balances and thermodymanic indices of diagram elements were given for the diagram in question As a result using no manual selection we obtained the heat exchanger output temperature for the direct flow and the turbine output pressure when executing the power balance between the turbine and the compressor of turboexpander unit. It allowed us to curtail the time required for the calculated analysis. The given information demonstrates the advantages of the Thermal Scheme software system.
{"title":"Peculiarities of the Use of Software System Thermal Scheme to Compute Heat Balance Diagrams","authors":"O. Shubenko, V. Sarapin","doi":"10.20998/2078-774X.2018.13.01","DOIUrl":"https://doi.org/10.20998/2078-774X.2018.13.01","url":null,"abstract":"Drawbacks of the most known software systems used for the calculated analysis of heat balance diagrams were analyzed. A short description of the software program Thermal Scheme including the main peculiarities of it has been given. This software system allows us to carry out the calculated analysis of heat balance diagrams using the real properties of actuating media. A list of the elements the most frequently used for the calculated analysis of heat balance diagrams has been given. The equation systems that are used for the calculation of the elements of heat balance diagrams using the Thermal Scheme software system were also given. To demonstrate the opportunities of the suggested software system we carried out as an example the calculated analysis of the heat balance diagram used for a low-temperature separation of the natural gas using the turboexpander unit. The calculated analysis data on the estimation of material and power balances and thermodymanic indices of diagram elements were given for the diagram in question As a result using no manual selection we obtained the heat exchanger output temperature for the direct flow and the turbine output pressure when executing the power balance between the turbine and the compressor of turboexpander unit. It allowed us to curtail the time required for the calculated analysis. The given information demonstrates the advantages of the Thermal Scheme software system.","PeriodicalId":416126,"journal":{"name":"NTU \"KhPI\" Bulletin: Power and heat engineering processes and equipment","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117046847","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 : 2018-07-15DOI: 10.20998/2078-774X.2018.12.11
I. I. Melezhyk, N. Shulzhenko, N. Garmash, Pavel Petrovich Gontarovskiy
{"title":"Simulation of the Propagation of Circumferential Crack in the Cylindrical Element Structure Exposed to Cyclic Loadings","authors":"I. I. Melezhyk, N. Shulzhenko, N. Garmash, Pavel Petrovich Gontarovskiy","doi":"10.20998/2078-774X.2018.12.11","DOIUrl":"https://doi.org/10.20998/2078-774X.2018.12.11","url":null,"abstract":"","PeriodicalId":416126,"journal":{"name":"NTU \"KhPI\" Bulletin: Power and heat engineering processes and equipment","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122272699","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 : 2018-07-15DOI: 10.20998/2078-774x.2018.12.05
A. Yefimov, Y. Romashov, V. Kavertsev
{"title":"Influence of Temperature Dependences of Thermophysical Characteristics on the Nonstationary Heat Conduc-tivity in the Drum Wall of Steam Boiler","authors":"A. Yefimov, Y. Romashov, V. Kavertsev","doi":"10.20998/2078-774x.2018.12.05","DOIUrl":"https://doi.org/10.20998/2078-774x.2018.12.05","url":null,"abstract":"","PeriodicalId":416126,"journal":{"name":"NTU \"KhPI\" Bulletin: Power and heat engineering processes and equipment","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121445472","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 : 2018-07-15DOI: 10.20998/2078-774x.2018.11.13
T. Donyk, O. Safronova, M. Parashar
{"title":"Thermal Design of the High-Temperature Steam Generator for the Nuclear Power Plant GT-MGR with Helical (Coil-in-Box) Pipe Bundles","authors":"T. Donyk, O. Safronova, M. Parashar","doi":"10.20998/2078-774x.2018.11.13","DOIUrl":"https://doi.org/10.20998/2078-774x.2018.11.13","url":null,"abstract":"","PeriodicalId":416126,"journal":{"name":"NTU \"KhPI\" Bulletin: Power and heat engineering processes and equipment","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127411516","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 : 2018-07-15DOI: 10.20998/2078-774X.2018.11.16
S. Ushakov, Аndrey Yurevich Karutsky, O. Shcherbakov, Sergiy Shukov
This article summarizes the results of pre-design studies to reduce pollutant emissions of gas turbine compressor packages. The amount of pollutant emissions of compressor packages used at the Ukrainian gas transmission system as well as gas turbines manufactured by Ukrainian companies is presented. The main methods for reduction in pollutant emissions of gas turbines were analyzed. It was shown that one of the promising methods is to use special catalyst systems in the exhaust ducts. To select the catalyst location, a series of numerical simulations have been performed in the exhaust system of gas turbine compressor package GPA-C-16S type. It was shown that flow in the exhaust system has a complex structure mostly caused by features of the flow at the exhaust collector outlet. It was also found that swirling of the flow at the turbine outlet causes significant change of the flow at the exhaust system (18 % of the mass flow of exhaust gas moves along one of the wall and 82 % along another one). To prevent the degradation of the flow because of swirling at the turbine outlet the especially designed tongue was used at the exhaust collector. To reduce the overall non-uniformity of the flow the exhaust duct design with tubular straightener has been developed. To produce utility heat compressor packages of GPA-C-16S type can be equipped with heat recovery units, of between 3.5 to 9 MW. Their application allows achievement of thermal efficiencies of 0.36 to 0.46. The heat recovery units can contain several separate heat exchangers. Heat power control of the heat recovery units is carried out by heat exchangers on-off and by controlling the flow rate of exhaust gases through them. The design of the heat recovery units allows filling heat exchangers with water without shut-down of the gas turbine. To avoid high thermal stresses heat exchangers are cooled with atmospheric air supplied by fan of the heat recovery unit cooling system.
{"title":"Results of Pre-Design Studies on the Development of a New Design of the Exhaust Duct of the Gas Turbine Compressor Package GPA-C-16S Type","authors":"S. Ushakov, Аndrey Yurevich Karutsky, O. Shcherbakov, Sergiy Shukov","doi":"10.20998/2078-774X.2018.11.16","DOIUrl":"https://doi.org/10.20998/2078-774X.2018.11.16","url":null,"abstract":"This article summarizes the results of pre-design studies to reduce pollutant emissions of gas turbine compressor packages. The amount of pollutant emissions of compressor packages used at the Ukrainian gas transmission system as well as gas turbines manufactured by Ukrainian companies is presented. The main methods for reduction in pollutant emissions of gas turbines were analyzed. It was shown that one of the promising methods is to use special catalyst systems in the exhaust ducts. To select the catalyst location, a series of numerical simulations have been performed in the exhaust system of gas turbine compressor package GPA-C-16S type. It was shown that flow in the exhaust system has a complex structure mostly caused by features of the flow at the exhaust collector outlet. It was also found that swirling of the flow at the turbine outlet causes significant change of the flow at the exhaust system (18 % of the mass flow of exhaust gas moves along one of the wall and 82 % along another one). To prevent the degradation of the flow because of swirling at the turbine outlet the especially designed tongue was used at the exhaust collector. To reduce the overall non-uniformity of the flow the exhaust duct design with tubular straightener has been developed. To produce utility heat compressor packages of GPA-C-16S type can be equipped with heat recovery units, of between 3.5 to 9 MW. Their application allows achievement of thermal efficiencies of 0.36 to 0.46. The heat recovery units can contain several separate heat exchangers. Heat power control of the heat recovery units is carried out by heat exchangers on-off and by controlling the flow rate of exhaust gases through them. The design of the heat recovery units allows filling heat exchangers with water without shut-down of the gas turbine. To avoid high thermal stresses heat exchangers are cooled with atmospheric air supplied by fan of the heat recovery unit cooling system.","PeriodicalId":416126,"journal":{"name":"NTU \"KhPI\" Bulletin: Power and heat engineering processes and equipment","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124741881","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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