Performance analysis of a district heating system

Ljubenko, Andrej (avtor), Poredoš, Alojz (avtor), Morosuk, Tatiana (avtor), Tsatsaronis, George (avtor)

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.

• Jezik: Angleški jezik
• Ključne besede: district heating systems, distribution network, energy, exergy, efficiency
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2013
• Št. strani: Str. 1298-1313
• Številčenje: Vol. 6, iss. 3
• PID: 20.500.12556/RUL-129503
• UDK: 620.9:697
• ISSN pri članku: 1996-1073
• DOI: 10.3390/en6031298
• COBISS.SI-ID: 12778011
• Datum objave v RUL: 02.09.2021

Gradivo je del revije

• Naslov: Energies
• Skrajšan naslov: Energies
• Založnik: Molecular Diversity Preservation International
• ISSN: 1996-1073
• COBISS.SI-ID: 518046745

Licence

• Licenca: CC BY 3.0, Creative Commons Priznanje avtorstva 3.0 Nedoločena
• Povezava: https://creativecommons.org/licenses/by/3.0/deed.sl
• Opis: Dovoljuje kopiranje in razširjanje vsebin v kakršnemkoli mediju in obliki. Dovoljuje remixanje, urejanje, predelava in vključevanje vsebine v lastna dela v vse namene, tudi komercialne. Primerno morate navesti avtorja, povezavo do licence in označiti spremembe, če so kakšne nastale. To lahko storite na kakršenkoli razumen način, vendar ne na način, ki bi namigoval na to, da dajalec licence podpira vas ali vašo uporabo dela. Ne smete uporabiti pravnih določil ali tehničnih ukrepov, ki bi pravno omejili ali onemogočilo druge, da bi storili karkoli, kar licenca dovoli.
• Začetek licenciranja: 04.03.2013

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: daljinsko ogrevanje, distribucijsko omrežje, energija, eksergija, učinkovitost