A multi-aid optimization scheme for large-scale investigation of cost-optimality and energy performance of buildings

Mohamed Hamdy*, Kai Siren

*Corresponding author for this work

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

According to the European Energy Performance of Buildings Directive (EPBD-2010/31/EU), all EU-Member states are obliged to continuously apply analysis on cost-optimal levels of minimum energy performance requirements towards nearly/net zero energy buildings. To perform such techno-economic analysis, a large number of technical/financial assumptions should be covered and possibly billions of design/operation options should be explored. This is computationally expensive. This study introduces a novel multi-aid optimization scheme (MAOS) for supporting robust cost-optimal decisions on energy-performance levels of buildings. The scheme's feature is reduction of the computational cost by avoiding time-consuming simulations through the use of post-processing and/or simplified models (when possible), while holistic optimization is adopted for considering multivariate interactions between possible design/operation options and financial/technical assumptions. The effectiveness of MAOS is demonstrated by optimizing a single-family house under 108-financial scenarios, where more than 1.6(10) solutions would be possible. The results show significant (similar to 95%) time reduction compared with those of the usual simulation-based optimization approach.

Original languageEnglish
Pages (from-to)411-430
Number of pages20
JournalJOURNAL OF BUILDING PERFORMANCE SIMULATION
Volume9
Issue number4
DOIs
Publication statusPublished - Jun 2016
MoE publication typeA1 Journal article-refereed

Keywords

  • cost-optimality
  • uncertainty
  • energy
  • buildings
  • integrated analysis
  • EPBD-recast 2010
  • holistic optimization
  • SIMULATION-BASED OPTIMIZATION
  • HEATING-SYSTEMS
  • DESIGN
  • ALGORITHMS
  • HOUSES

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