| Issue |
E3S Web Conf.
Volume 689, 2026
14th International Symposium on Heating, Ventilation, and Air Conditioning (ISHVAC 2025)
|
|
|---|---|---|
| Article Number | 03002 | |
| Number of page(s) | 7 | |
| Section | Heating / Cooling Performance and Optimization | |
| DOI | https://doi.org/10.1051/e3sconf/202668903002 | |
| Published online | 21 January 2026 | |
Statistical analysis of key indicators in district heating operations in northern China over the past five years
School of Architecture, Tsinghua University, 100084 Beijing, China
* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract
This study presents and applies a questionnaire-based systematic methodology for analysing the operational strategies and energy efficiency of district heating systems in northern China. By examining data from 144 heating companies covering approximately 42% of the urban heating area over five heating seasons (2017–2022), the study focuses on trends in key energy consumption indicators at both the heat source and network sides. The results indicate an overall decline in specific heat consumption on the heat source side, along with improved efficiency in both coal-fired and gas-fired boilers, albeit with notable regional disparities. On the network side, significant regional imbalances were observed in make-up water rates for both primary and secondary networks and in electricity consumption at heat exchange stations, highlighting acute infrastructure aging issues particularly in northeastern China.
© The Authors, published by EDP Sciences, 2026
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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