The Impact of the Future Fluctuating Energy Consumption on a District Heating System: Case Study of Omsk and Krasnoyarsk Cities : научное издание

Описание

Тип публикации: статья из журнала

Год издания: 2021

Идентификатор DOI: 10.2478/rtuect-2021-0040

Ключевые слова: demand, district heating, efficiency, heat consumption, load, optimization, space heating, supply, temperature, thermal

Аннотация: Temperature difference between supply and return distribution medium (water) is a vital factor when assessing the efficiency of a district heating (DH) substation. An accounting for fluctuations and differences of the heat consumption/generation is the key problem in planning DH system operation. The influence of the fluctuating enПоказать полностьюergy consumption on a DH system was studied with actual data, using the DH systems of the Russian cities Krasnoyarsk and Omsk as a case study. Information is visualized in the form of graphs and charts, orderly and clearly comparing certain points. The data includes supply and return temperatures, and heat demand. Clearly visible state of high return temperatures induces more bottleneck problems as the flow increases. At the same time, in 2019, the total heat demand was 21 008 MW. This is more than 5 % than in 2020, assuming 100 % of consumers connected. The reasons for this trend are: decreasing total housing area, no incentive for the buildings in newly built-up areas to be connected to the DH system, poor service motivating business facilities to disconnect from the system. When the primary energy consumption related to the warmer climate and behaviour of business sector decreases, the DH system requires renovation. It is possible to reduce network return temperature during some months of the year. The reason is that, a high temperature difference is essential to maintain high efficiency and minimize fuel and pumping cost, it also enables more customers to be connected to a DH system without increasing pipe dimensions of a network.

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Издание

Журнал: ENVIRONMENTAL AND CLIMATE TECHNOLOGIES

Выпуск журнала: Vol. 25, Is. 1

Номера страниц: 551-562

ISSN журнала: 16915208

Место издания: WARSAW

Издатель: SCIENDO

Персоны

  • Chicherin Stanislav (Omsk State Transport Univ OSTU, 35 Marx Ave, Omsk 644046, Russia)
  • Zhuikov Andrey (Siberian Fed Univ, Svobodny Ave 79, Krasnoyarsk 660041, Russia)
  • Kolosov Mikhail (Siberian Fed Univ, Svobodny Ave 79, Krasnoyarsk 660041, Russia)
  • Junussova Lyazzat (Almaty Univ Power Engn & Telecommun, Nonprofit JSC, Alma Ata, Kazakhstan)
  • Aliyarova Madina (Almaty Univ Power Engn & Telecommun, Nonprofit JSC, Alma Ata, Kazakhstan)
  • Yelemanova Aliya (Almaty Univ Power Engn & Telecommun, Nonprofit JSC, Alma Ata, Kazakhstan)