Vestnik of Samara State Technical University. Technical Sciences SeriesVestnik of Samara State Technical University. Technical Sciences Series1991-85422712-8938Samara State Technical University2002310.14498/tech.2014.4.%uResearch ArticleResearch of central heating network using computer modelKolesnikovSergey V(Ph.D. (Techn)), doctoral studenttotig@yandex.ruKudinovIgor V(Ph.D. (Techn.)), Associate Professortotig@yandex.ruSamara State Technical University1512201422414915910022020Copyright © 2014, Samara State Technical University2014Urban heating networks powered by heating and power plant and boilers are complex brachigerous hydraulic systems. The main problems of their operation are insufficient pressure difference between direct and reverse pipelines, increased pressure in reverse pipeline, the deregulation of network (the discrepancy between the estimated and actual costs for heat consumers) and others. These problems can be caused by: excessive consumption of heat carrier, insufficient pipeline diameters, reduction of pipelines diameters as the result of deposits on their inner surfaces, the valves overlap in network sections with high velocities of heat carrier flow, parasitic circulation, etc. The problem of define which of the abovementioned problems is critical is quite complex. Computer models that allow the complete simulation of hydraulic and temperature modes of heating networks are the most effective and precise way to determine the main causes of the abovementioned problems that occur in every heating network. These models consider the heating network as the unified hydraulic systems (taking into account any number of inner ring structures).computer modelgraph theoryKirchhoff’s lawsheating systems (HS) of the centralized heat supplypressure losshydraulic resistanceтеплосетькомпьютерная модельзаконы Кирхгофатеория графовидентификация моделиэпюры давления[Абрамов Н.Н. Теория и методика расчета системы подачи и распределения воды. - М.: Стройиздат, 1972. - 286 с.][Меренков А.П., Сеннова Е.В., Сумарокова С.В. и др. Математическое моделирование и оптимизация систем тепло-, водо-, нефте- и газоснабжения. - Новосибирск: ВО Наука, Сиб. издат. фирма, 1992. - 407 с.][Зыков А.А. Теория конечных графов. - Новосибирск: Наука; СО, 1969. - 543 с.][Коваленко А.Г., Туева Н.С. Система синтеза и анализа гидравлических сетей. - М.: Вычисл. центр АН СССР, 1989. - 70 с.][Кудинов В.А., Коваленко А.Г., Колесников С.В., Панамарев Ю.С. Разработка компьютерной модели и исследование режимов работы циркуляционной системы Новокуйбышевской ТЭЦ -2 // Изв. АН. Энергетика. - 2001. - № 6. - С. 118 -124.][Колесников С.В., Дикоп В.В., Томкин С.Н., Кудинов В.А. Исследование гидравлических режимов работы цирксистемы Тольяттинской ТЭЦ на компьютерной модели // Изв. вузов СНГ. Энергетика. - 2002. - № 6. - С. 90-95.]