Performance analysis of a district heating system
| Autor: | Andrej Ljubenko, Alojz Poredoš, George Tsatsaronis, Tatiana Morosuk |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Exergy
Engineering Control and Optimization Primary energy consumption Distribution networks Heat distribution Heat supply Energy Engineering and Power Technology lcsh:Technology udc:620.9:697 jel:Q40 district heating system jel:Q jel:Q43 jel:Q42 jel:Q41 jel:Q48 jel:Q47 Electrical and Electronic Engineering Process engineering Engineering (miscellaneous) district heating systems distribution network jel:Q49 exergy Waste management distribucijsko omrežje Renewable Energy Sustainability and the Environment business.industry lcsh:T eksergija jel:Q0 energy efficiency jel:Q4 Heating system Low exergy daljinsko ogrevanje Exergy efficiency business učinkovitost energija Energy (miscellaneous) |
| Zdroj: | Energies, vol. 6, no. 3, pp. 1298-1313, 2013. Energies, Vol 6, Iss 3, Pp 1298-1313 (2013) Energies; Volume 6; Issue 3; Pages: 1298-1313 |
| ISSN: | 1996-1073 |
| Popis: | Lowering the exergy content of heat required for heating purposes decreases the primary energy consumption. District heating systems are often an important link between facilities that generate heat with low exergy content and consumers. Exergetic efficiency of heat distribution is an important performance criterion in heat supply to consumers. It can serve as a criterion for optimization, towards a more sustainable distribution-network design and operation. This paper presents a methodology for an exergy-based distribution-network analysis in a district heating system. Criteria for performance evaluations are defined. They can be used to evaluate heat supply to different points in the network, or individual system components. A case study is performed on an existing district heating system. Energetic and exergetic efficiencies of supply lines are analyzed. Exergy destructions and exergy losses are studied. Large differences in efficiency of heat supply to different points in the network are discovered. Over-dimensioned parameters of the distribution network are investigated. |
| Databáze: | OpenAIRE |
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