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Optimization of energetic refurbishment roadmaps for multi-family buildings utilizing heat pumps

  • A novel methodology for calculating optimized refurbishment roadmaps is developed in this paper. The aim of the roadmaps is to determine when and how should which component of the building envelope and heat generation system be refurbished to achieve the lowest net present value. The integrated optimization approach couples a particle swarm optimization algorithm with a dynamic building simulationA novel methodology for calculating optimized refurbishment roadmaps is developed in this paper. The aim of the roadmaps is to determine when and how should which component of the building envelope and heat generation system be refurbished to achieve the lowest net present value. The integrated optimization approach couples a particle swarm optimization algorithm with a dynamic building simulation of the building envelope and the heat supply system. Due to a free selection of implementation times and refurbishment depth, the optimization method achieves the lowest net present value and high CO2 reduction and is therefore an important contribution to achieve climate neutrality in the building stock. The method is exemplarily applied to a multi-family house built in 1970. In comparison to a standard refurbishment roadmap, cost savings of 6–16 % and CO2 savings of 6–59 % are possible. The sensitivity of the refurbishment roadmap measures is analyzed on the basis of a parametric analysis. Robust optimization results are obtained with a mean refurbishment level of approx. 50 kWh/m2/a of the building envelope. The preferred heat generation system is a bivalent brine-heat pump system with a share of 70 % of the heat load being covered by the electric heat pump.show moreshow less

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Metadaten
Document Type:Article (reviewed)
Zitierlink: https://opus.hs-offenburg.de/8315
Bibliografische Angaben
Title (English):Optimization of energetic refurbishment roadmaps for multi-family buildings utilizing heat pumps
Author:Raphael Vollmer, Manuel LämmleStaff MemberORCiDGND, Stefan Hess, Hans-Martin Henning
Year of Publication:2023
Creating Corporation:Institut für Nachhaltige Technische Systeme (INATECH)
Contributing Corporation:Fraunhofer-Institut für Solare Energiesysteme (ISE)
Place of publication:Amsterdam
Publisher:Elsevier BV
First Page:1
Last Page:16
Article Number:112729
Parent Title (English):Energy and Buildings
Volume:280
ISSN:0378-7788 (Print)
ISSN:1872-6178 (Online)
DOI:https://doi.org/10.1016/j.enbuild.2022.112729
Language:English
Inhaltliche Informationen
Institutes:Forschung / INES - Institut für nachhaltige Energiesysteme
Fakultät Maschinenbau und Verfahrenstechnik (M+V)
Collections of the Offenburg University:Bibliografie
DDC classes:600 Technik, Medizin, angewandte Wissenschaften
600 Technik, Medizin, angewandte Wissenschaften / 690 Hausbau, Bauhandwerk / 697 Heizungs-, Lüftungs-, Klimatechnik
GND Keyword:Bautechnik; Elektrotechnik; Gebäudetechnik; Sanierung; Wärmepumpe
Tag:Construction; Mechanical Engineering
Building; Civil and Structural Engineering; Electrical Engineering; Electronic Engineering
Formale Angaben
Relevance for "Jahresbericht über Forschungsleistungen":Wiss. Zeitschriftenartikel reviewed: Listung in Master Journal List
Open Access: Closed 
Licence (German):License LogoUrheberrechtlich geschützt