Excess heat utilization combined with thermal storage integration in district heating systems using renewables

Znanstveni rad - Izvorni znanstveni rad

• Autor: Borna Doračić
• Autor: Marino Grozdek
• Autor: Tomislav Pukšec
• Autor: Neven Duić
• Autorova ustanova: Sveučilište u Zagrebu; Fakultet strojarstva i brodogradnje; (Zavod za energetska postrojenja, energetiku i okoliš); (Katedra za energetska postrojenja i energetiku)
• Znanstveno / umjetničko područje, polje i grana: TEHNIČKE ZNANOSTI; Strojarstvo; Procesno energetsko strojarstvo

Sažetak (engleski)

District heating systems already play an important role in increasing the sustainability of the heating sector and decreasing its environmental impact. However, a high share of these systems is old and inefficient and therefore needs to change towards the 4th generation district heating, which will incorporate various energy sources, including renewables and excess heat of different origins. Especially excess heat from industrial and service sector facilities is an interesting source since its potential has already been proven to be highly significant, with some researches showing that it could cover the heat demand of the entire residential and service sector in Europe. However, most analyses of its utilisation in district heating are not done on the hourly level, therefore not taking into account the variability of its availability. For that reason, the main goal of this work was to analyse the integration of industrial excess heat into the district heating system consisting of different configurations, including the zero fuel cost technologies like solar thermal. Furthermore, cogeneration units were a part of every simulated configuration, providing the link to the power sector. Excess heat was shown to decrease the operation of peak load boiler and cogeneration, that way decreasing the costs and environmental effect of the system. However, since its hourly availability differs from the heat demand, thermal storage needs to be implemented in order to increase the utilisation of this source. The analysis was performed on the hourly level in the energyPRO software

• Ključne riječi (engleski): district heating, excess heat, hourly analysis, energyPRO, thermal storage
• Jezik: engleski
• Vrsta publikacije: Znanstveni rad - Izvorni znanstveni rad
• Status objave: Objavljen
• Vrsta recenzije: Recenziran - međunarodna recenzija
• Verzija publikacije: Objavljena verzija rada (izdavačev PDF)
• Naslov časopisa: Thermal Science
• Brojčani podaci: vol. 24, br. 6, str. 3673-3684
• p-ISSN: 0354-9836
• e-ISSN: 2334-7163
• DOI: https://doi.org/10.2298/TSCI200409286D
• URN:NBN: urn:nbn:hr:235:007857
• Datum objave publikacije: 2020
• Vrsta resursa: Tekst
• Prava pristupa: Otvoreni pristup
• Datum i vrijeme pohrane: 2024-06-04 07:45:59