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Design Optimization of a Complex Polygeneration System for a Hospital
KTH, School of Industrial Engineering and Management (ITM), Energy Technology.ORCID iD: 0000-0001-8510-2783
KTH, School of Industrial Engineering and Management (ITM), Energy Technology.ORCID iD: 0000-0002-4479-344X
KTH, School of Industrial Engineering and Management (ITM), Energy Technology.ORCID iD: 0000-0001-9556-552X
2018 (English)In: Energies, ISSN 1996-1073, E-ISSN 1996-1073, Vol. 11, no 5, article id 1071Article in journal (Refereed) Published
Abstract [en]

Small-scale decentralized polygeneration systems have several energetic, economic and environmental benefits. However, using multiple energy sources and providing multiple energy services can lead to complicated studies which require advanced optimization techniques for determining optimal solutions. Furthermore, several parameters can influence the design and performance of a polygeneration system. In this study, the effects of heat load, renewable generation and storage units on the optimal design and performance of a polygeneration system for a hypothetical hospital located in northern Italy are investigated. The polygeneration system shows higher performance compared to the reference system, which is based on the separate generation of heat and power. It reduces fuel consumption by 14-32%, CO2 emissions by 10-29% and annualized total cost by 7-19%, for various studied scenarios. The avoided fuel and electricity purchase of the polygeneration system has a positive impact on the economy. This, together with the environmental and energetic benefits if the renewable generation and use of storage devices, indicate the viability and competitiveness of the system.

Place, publisher, year, edition, pages
MDPI , 2018. Vol. 11, no 5, article id 1071
Keywords [en]
polygeneration, decentralized energy system, optimization, multi-energy system, renewable energy system
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-240241DOI: 10.3390/en11051071ISI: 000435610300049Scopus ID: 2-s2.0-85047072937OAI: oai:DiVA.org:kth-240241DiVA, id: diva2:1272686
Note

QC 20181219

Available from: 2018-12-19 Created: 2018-12-19 Last updated: 2018-12-19Bibliographically approved

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Ghaem Sigarchian, SaraMalmquist, AndersMartin, Viktoria

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