Environmental Impact of District Heating System Retrofitting

Atmosphere

Aleksandrs Zajacs¹  Anatolijs Borodinecs¹  Nikolai Vatin² 

[1] Department of Heat Engineering and Technology, Riga Technical University, LV-1048 Riga, Latvia;Institute of Civil Engineering, Peter the Great Saint Petersburg Polytechnic University, 195251 Saint Petersburg, Russia;

关键词: environmental impact;    district heating;    retrofitting;   

DOI  :  10.3390/atmos12091110

来源: DOAJ

【 摘 要 】

Retrofitting of district heating systems is a comprehensive process which covers all stages of district heating (DH) systems: production, distribution and consumption. This study quantitatively shows the effect of retrofitting measures and represents strengths and weaknesses of different development scenarios. Improvements in production units show improvements in fuel use efficiency and thus indirectly reduce CO₂ emissions due to unburned fuel. For this purpose, validated district planning tools have been used. Tool uses mathematical model for calculation and evaluation of all three main components of the DH system. For the quantitative evaluation, nine efficiency and balance indicators were used. For each indicator, recommended boundary values were proposed. In total, six simulation scenarios were simulated, and the last scenario have shown significant reduction in CO₂ emissions by 40% (from 3376 to 2000 t CO₂ compared to the actual state), while share of biomass has reached 47%.

【 授权许可】

Unknown