Solving the Multi-criteria Optimization Problem of Heat Energy Transport

Melkumov, Viktor; Tulskaya, Svetlana; Chuykina, Anastasiya; Dubanin, V Yu

doi:10.1007/978-3-030-57450-5_1

Cited by 2 publications

(1 citation statement)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Важным вопросом является проектирование тепловой изоляции трубопроводов тепловых сетей [9][10][11], влияющих на технико-эконо-мические показатели теплоснабжающих и тепло-сетевых организаций [12,13]. При ее расчете в качестве исходных данных часто пользуются рекомендуемыми значениями, не учитывающими климатические характеристики местности и особенности функционирования закрытых двухтрубных систем теплоснабжения с преобладающей отопительной нагрузкой, что особенно актуально для районов полярного региона [14,15]. Как считают некоторые исследователи, такой подход может способствовать ошибкам проектирования [16][17][18] [19][20][21].…”

unclassified

Average Annual Water Temperatures in Heating Networks Cryolithozones

Kitaev,

Bohan

2024

Proceedings of the SWSU

View full text Add to dashboard Cite

Purpose of research. For settlements located in the permafrost zone on the territory of the Russian Federation, obtain the values of average annual water temperatures in heating networks of centralized heating systems separately for the supply and return mains using design water temperatures in the range from 95 to 150 ° C, taking into account modern climatic data and the indicators of the heating systems used devices.Methods. To achieve the set goals, methods of central high-quality regulation of the load of the thermal energy consumer were used, based on the heat balance equation. To find the temperatures at the break point of the temperature graph, numerical methods for solving equations were used. To obtain an equation for the dependence of the average annual water temperature in the supply main of the heating network, methods of the theory of approximation of functions by algebraic polynomials were used. To cluster settlements according to the criterion of being in the permafrost zone and the possibility of using centralized heat supply, methods of analysis and synthesis were used.Results. Average annual water temperatures for the supply and return lines of heating networks were obtained using central quality control schedules with design temperatures from 95 to 150°C, taking into account the values of average monthly outdoor air temperatures for settlements in the permafrost zone of the Russian Federation.Conclusion. The values of annual water temperatures recommended by modern standards for the supply main of heating networks may differ significantly from the calculated values obtained taking into account the design water temperatures, climatic characteristics of the design area, and features of the organization of a closed heat supply system in order to ensure standard hot water supply temperatures. A quadratic equation has been obtained that makes it possible to calculate with high accuracy the design annual temperature of the coolant for the supply pipeline depending on the temperature schedule implemented in the heat supply system for settlements located in the permafrost zone.

show abstract

unclassified