Compensation of thermal deformations of heat supply network with radial expansion bends

Бесплатный доступ

A methodology for structural analysis of compensation of thermal expansions used for channel or aboveground sections of heat network pipelines with radial expansion bends has been proposed. The methodology is based on the methods of structural mechanics and allows to find technically based dimensions of radial expansion bends. Increased flexibility of the heat pipe angles and stress-raisers of additional bending stresses have been taken into account, the functional and graphical dependencies of the stress caused by thermal deformations of the heat pipe section with the U-shaped radial expansion bends on the temperature of the coolant have been presented. The authors developed and presented the computer program used for calculating radial expansion bends. Due to the program analyzing the model of a heat pipe section with a radial U-shaped expansion bend has been calculated. Comparison of the calculation results with the results obtained by means of the well-known software system “Start” developed by the scientific-and-technological enterprise “Pipeline” has shown a sufficient convergence of results, which confirms the efficiency of the presented methodology and computer program.

Еще

Heat supply network, thermal expansions of heat pipes, compensation of thermal pipe deformations, radial expansion bends

Короткий адрес: https://sciup.org/146279541

IDR: 146279541   |   DOI: 10.17516/1999-494X-0059

Список литературы Compensation of thermal deformations of heat supply network with radial expansion bends

  • Белиловец В.И., Липовка А.Ю., Липовка Ю.Л. Оценка надежности городских тепловых сетей с точки зрения прочностных расчетов. Город, пригодный для жизни: материалы II Международной научно-практической конференции «Современные проблемы архитектуры, градостроительства, дизайна». красноярск: СФУ, 2015, 376-378
  • Абсалямов Д.Р. Повышение надежности инженерных систем методом формализации поиска отказов. Инженерно-строительный журнал, 2012, 2(28), 39-47
  • Липовка Ю.Л., Белиловец В.И. Некоторые теоретические стороны расчета температурных деформаций подземных бесканальных теплопроводов. Журнал СФУ. Техника и технологии, 2016, 9(4), 546-562
  • Лалин В.В., Яваров А.В. Современные технологии расчета магистральных трубопроводов. Инженерно-строительный журнал, 2010, 3, 43-47
  • Тюкалов Ю.Я. Функционал дополнительной энергии для анализа устойчивости пространственных стержневых систем. Инженерно-строительный журнал, 2017, 2(70), 18-32
  • Сергеев О.А., кисилев В.Г. Сергеева С.А. Общая потеря устойчивости и оптимизация стержневых конструкций со случайными несовершенствами при ограничениях на вероятность безотказной работы. Инженерно-строительный журнал, 2013, 9(44), 30-41
  • Кирсанов М.Н. Статический расчет и анализ пространственной стержневой системы. Инженерно-строительный журнал, 2011, 6(24), 28-34
  • Лалин В.В., Розин Л.А., кушова Д.А. Вариационная постановка плоской задачи геометрически нелинейного деформирования и устойчивости упругих стержней. Инженерностроительный журнал, 2013, 1(36), 87-96
  • Kudinov I.V., Kolesnikov S.V., Eremin A.V., Branfileva A.N. Computer models of complex multiloop branched pipeline systems. Thermal Engineering (English translation of Teploenergetika), 2013, 60 (11), 835-840
  • Finney K.N., Sharifi V.N., Swithenbank J., White S., Ogden S. Developments to an existing city-wide district energy network. Part I: Identification of potential expansions using heat mapping. Energy Conversion and Management, 2012, 62, 165-175
  • Kaliatka A., Valinčius M. Modeling of pipe break accident in a district heating system using RELAP5 computer code. Energy, 2012, 44(1), 813-819
  • Yoo H., Shon T. Challenges and research directions for heterogeneous cyber-physical system based on IEC 61850: Vulnerabilities, security requirements, and security architecture. Future Generation Computer Systems, 2016, 61, 128-136
  • Jararweh Y., Al-Ayyoub M., Darabseh A., Benkhelifa E., Vouk M., Rindos A. Software defined cloud: Survey, system and evaluation. Future Generation Computer Systems, 2016, 58, 56-74
  • Zhang Y.L., Tan F., Zhang L.R., Shi M.M. Scalable parallel computation for finite element model with hundreds of millions of elements in geotechnical engineering. Rock and Soil Mechanics, 2016, 37(11), 3309-3316
  • Morvaj B., Evins R., Carmeliet J. Optimising urban Energy systems: Simultaneous system sizing, operation and district heating network layout. Energy, 2016, 16, 619-636
  • Maasoumy M., Nuzzo P., Sangiovanni-Vincentelli A. Smart buildings in the smart grid: Contract-based design of an integrated energy management system. Power Systems. 2015, 79, 103-132
  • Radhakrishnan N., Su Y., Su R., Poolla K. Token based scheduling for energy management in building HVAC systems. Applied Energy, 2016, 173, 67-79
  • Reppa V., Papadopoulos P., Polycarpou M.M., Panayiotou C.G. A Distributed Architecture for HVAC Sensor Fault Detection and Isolation. IEEE Transactions on Control Systems Technology, 2015, 23(4), 1323-1337
  • Zhou S., Zhao Y., Zhang C., Zhang L. Operational optimization and algorithm of Hot-Water district heating system. ICIC Express Letters, 2015, 9(5), 1519-1524
  • Zhou S., Tian M., Zhao Y., Guo M. Dynamic modeling of thermal conditions for hot-water district-heating networks. Journal of Hydrodynamics, 2014, 26(4), 531-537
  • Lipovka Yu.L., Belilovets V.I., Lipovka A.Yu. The influence of slenderness ratio and stress concentration in taps on load calculations to thermal expansion in П -shaped compensators of thermal network. J. Sib. Fed. Univ. Eng. Technol, 2015, 8(1), 11-32
  • Belilovets V.I. The Influence Factors of Flexibility and Stress Concentration in the Taps to the Calculation of Cooling Strain of Radial Compensators in Heat Supply Network. Prospekt Svobodny -2015: Proceedings of the scientific conference dedicated to the 70th anniversary of the Great Victory, Krasnoyarsk, SibFU, 2015, 11-15
  • Radchenko S.A. Analytical and numerical solution for а elastic pipe bend at in-plane bending with consideration for the end effect. International Journal of Solids and Structures, 2007, 44, 1488-1510
  • Kolesnikov A.M. Large bending deformations of pressurized curved tubes. Arch. Mech, 2011, 63, 507-516
  • Fonseca E.M.M., FJM. Q. de Melo and Madureira M.L.R. A Multi-nodal Ring Finite Eleinent for Analysis of Pipe Deflection. International Journal of Manufacturing Science and Engineering, 2011, 2(2), 109-114
  • Свидетельство о государственной регистрации программы для ЭВМ № 2014615580. Расчет радиальных компенсаторов тепловой сети. Белиловец В.И., Липовка Ю.Л., дата поступления 31.03.2014. Дата регистрации 29.05.2014
Еще
Статья научная