probenerИзвестия высших учебных заведений. ПРОБЛЕМЫ ЭНЕРГЕТИКИPower engineering: research, equipment, technology1998-99032658-5456Kazan State Power Engineering University10.30724/1998-9903-2019-21-4-48-57probener-1084Research ArticleЭНЕРГЕТИКАPOWER ENGINEERINGМоделирование влияния продольного прямоугольного оребрения на эффективность теплообменаSimulation of the effectiveness of longitudinal rectangular fins on the efficiency of the double pipe heat exchangerТимербаевН. Ф.TimerbaevN. F.

Тимербаев Наиль Фарилович – д-р техн. наук, профессор, заведующий кафедрой «Возобновляемые источники энергии»

Nail F. Timerbaev

Kazan

omeralhayaly1@yahoo.comАлиА. К.AliA. K.

Асаад Камел Али – магистр инженерного колледжа университета Анбар, Республика Ирак.

Asaad Kamel Ali

Republic of Iraq.

omeralhayaly1@yahoo.comАльмохаммедОмар Абдулхади МустафаAlmohamedOmar Abdulhadi Mustafa

Омар Абдулхади Мустафа Альмохаммед – аспирант Казанского государственного энергетического университета (КГЭУ).

Omar Abdulhadi Mustafa Almohamed

Kazan

omeralhayaly1@yahoo.comКорякинА. Р.KoryakinA. R.

Корякин Аркадий Романович – студент Московского государственного технического университета им. Н.Э.Баумана.

Arkady R.Koryakin – student

omeralhayaly1@yahoo.comКазанский государственный энергетический университетРоссияKazan State Power Engineering UniversityRussian FederationИнженерный колледж университета АнбарИракEngineering College of Anbar UniversityIraqМосковский государственный технический университет им. Н.Э. БауманаРоссияMoscow State Technical University N.E. BaumanRussian Federation2019061220192144857Copyright © Тимербаев Н.Ф., Али А.К., Альмохаммед О., Корякин А.Р., 20192019Тимербаев Н.Ф., Али А.К., Альмохаммед О., Корякин А.Р.Timerbaev N.F., Ali A.K., Almohamed O., Koryakin A.R.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.energyret.ru/jour/article/view/1084

В статье проводится математическое моделирование двухтрубного теплообменника, имеющего продольные прямоугольные оребрения размером (2*3*1000) мм, установленные на внешней поверхности внутренней трубки теплообменника. В данной работе математически обосновано преимущество применения такой конструкции при передаче тепла между жидкостями, протекающими через теплообменник, и влияние установки продольных прямоугольных оребрений на эффективность работы теплообменника. Проведенные исследования позволяют проводить расчет оптимальных конструктивных параметров теплообменников. Диаметр внешней трубы (34,1 мм), а диаметр внутренней трубы (16,05 мм). Толщина стенок труб составляет (1,5 мм), а длина системы (1 м). Горячая вода течет через внутреннюю трубу параллельно с холодной водой, которая проходит через внешнюю трубу. Температура горячей и холодной воды на входе составляет (75 ° C и 30 ° C) соответственно. Массовый расход внутри центральной трубы составляет (0,1 кг / с), а кольцевая труба несет (0,3 кг / с).Для исследований была использована компьютерная программа ANSYS Workbench 15.0, с целью расчета и визуализации поведения жидкостей внутри теплообменника и получения результатов.

In this article, a mathematical simulation of a double pipe heat exchanger is carried out, having the longitudinal rectangular fins with the dimension of (2*3*1000) mm, mounted on the outer surface of the inner tube of the heat exchanger. In this paper, the advantage of using of that type of fins and its effect on the effectiveness of the heat exchanger are studied with the help of the computer program. The carried out research allowsmaking the calculation to find the optimum design parameters of heat exchangers. The outer tube diameter is (34.1mm) while the inner tube diameter is (16.05mm). The tubes wall thickness is (1.5mm) and the model length was (1 m). The hot water is flowing through the inner tube in parallel with the cold water that passing the outer tube. The hot and cold water temperature at the inlet is (75°C & 30°C) respectively. The mass flow rate inside the central pipe is (0.1 kg/s) while the annular pipe carrying (0.3 kg/s). In the present work, the program ANSYS Workbench 15.0 was used to find out the results of heat transfer as well as the behavior of liquids inside the heat exchangers.

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The authors declare that there are no conflicts of interest present.