Operational performance of a modernized district heating system: monitoring evidence from the transition to closed-circuit architecture with automated individual thermal points in Chirchik, Uzbekistan

Mehriya A. Koroli, Humoyun I. Yaxshilikov

Энергия ва ресурс тежаш муаммолари · 2026-yil

Annotatsiya

Relevance: Post-Soviet district heating infrastructure in Central Asia consistently exhibits network heat losses exceeding 35–40% and boiler efficiencies below 75%, largely due to decades of deferred maintenance and an outdated open hydraulic configuration. Peer-reviewed operational monitoring data from large-scale district heating modernization projects in the region remain extremely limited. Aim: the study aims to quantitatively assess changes in thermal efficiency and heat losses in the K-1 heating network following modernization; determine reductions in natural gas, electricity, and network make-up water consumption; evaluate the performance of automated individual heating substations in terms of domestic hot water provision and their impact on consumer costs; and assess the environmental benefits of modernization and its implications for infrastructure service life. Methods: this quasi-experimental before-and-after study analyzed operational monitoring and energy audit data from the Yubileynaya boiler plant (K-1) and its 24,845-m-long distribution network in Chirchiq, Uzbekistan (population: 176,151). As part of a World Bank-funded project, the open domestic hot water supply system was replaced with pre-insulated pipelines and automated individual heating substations at the building level. Key performance indicators included boiler thermal efficiency, network heat losses, natural gas and electricity consumption, network make-up water consumption, and CO2 emissions. Results: following modernization, boiler efficiency increased from 83% to 92–95%. Network heat losses decreased from approximately 40% to 15–20%. Annual natural gas consumption was reduced by 25–30%, with total project-level savings estimated at up to 320 million m3/year. Electricity consumption for pumping decreased by 15–20% (approximately 85 million kWh/year) following the installation of variable-frequency drives. Network make-up water requirements were reduced by 60–75%. CO2 emissions decreased by approximately 30%.

Maqola ma’lumotlari
MualliflarMehriya A. Koroli, Humoyun I. Yaxshilikov
JurnalЭнергия ва ресурс тежаш муаммолари
Nashriyot«Ўзбекэнерго» АО, ТДТУ, Ўзбекистон Республикаси ФА, Энергия ва ресурслар тежаш илмий-амалий ўқув маркази, «Ўздавэнергоназорат» давлат инспекцияси, «Энергия тежамкорлиги ва қайта тикланувчи энергия манбалари» илмий-тадқиқот лабораторияси
ISSN2091-5985, 2181-1946
Nashr sanasi2026-10-19
Son3
Betlar80-87
TilIngliz
Ilmiy sohaTexnika
Indeksga qo‘shilgan2026-10-22

Maqolaning asl sahifasi

Kalit so‘zlar

модернизация теплоснабжения, district heating modernization, issiqlik ta’minotini modernizatsiya qilish

Ilmiy soha

Texnika

Iqtibos keltirish

APAMehriya A. Koroli, & Humoyun I. Yaxshilikov (2026). Operational performance of a modernized district heating system: monitoring evidence from the transition to closed-circuit architecture with automated individual thermal points in Chirchik, Uzbekistan. Энергия ва ресурс тежаш муаммолари, (3), 80-87. https://energy.tdtu.uz/index.php/journal/article/view/451
GOST (OAK)Mehriya A. Koroli, Humoyun I. Yaxshilikov Operational performance of a modernized district heating system: monitoring evidence from the transition to closed-circuit architecture with automated individual thermal points in Chirchik, Uzbekistan // Энергия ва ресурс тежаш муаммолари. – 2026. – № 3. – P. 80-87.
MLAMehriya A. Koroli, and Humoyun I. Yaxshilikov. “Operational performance of a modernized district heating system: monitoring evidence from the transition to closed-circuit architecture with automated individual thermal points in Chirchik, Uzbekistan.” Энергия ва ресурс тежаш муаммолари, (3), 80-87, 2026. https://energy.tdtu.uz/index.php/journal/article/view/451
ChicagoMehriya A. Koroli, and Humoyun I. Yaxshilikov. “Operational performance of a modernized district heating system: monitoring evidence from the transition to closed-circuit architecture with automated individual thermal points in Chirchik, Uzbekistan.” Энергия ва ресурс тежаш муаммолари, (3), 80-87 (2026). https://energy.tdtu.uz/index.php/journal/article/view/451
HarvardMehriya A. Koroli, and Humoyun I. Yaxshilikov (2026) ‘Operational performance of a modernized district heating system: monitoring evidence from the transition to closed-circuit architecture with automated individual thermal points in Chirchik, Uzbekistan’, Энергия ва ресурс тежаш муаммолари, (3), 80-87. https://energy.tdtu.uz/index.php/journal/article/view/451
BibTeX
@article{mehriyaakoroli2026,
  title = {Operational performance of a modernized district heating system: monitoring evidence from the transition to closed-circuit architecture with automated individual thermal points in Chirchik, Uzbekistan},
  author = {Mehriya A. Koroli and Humoyun I. Yaxshilikov},
  journal = {Энергия ва ресурс тежаш муаммолари},
  year = {2026},
  number = {3},
  pages = {80-87},
  url = {https://energy.tdtu.uz/index.php/journal/article/view/451}
}

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