A holistic simulation-based optimization approach for dimensioning cost optimal and nearly-zero-energy buildings

Research output: Contribution to conferenceConference articleScientificpeer-review

Abstract

Building design is an inherently multi-objective process, which entails a trade-off being made between two or more conflicting design objectives, like minimizing both primary energy consumption (PEC) and life cycle cost (LCC). This paper presents an implementation for a holistic automatic simulation-based optimization approach with search techniques for multi-objective designs of combined building elements and energy systems. In line with the new recast of the Energy Performance of Buildings Directives (EPBD, 2010/31/EU), the PEC and the LCC of a single family house in cold climate of Finland are minimized considering various design variables: types of the building (a standard house, a low energy house and a passive house), HVAC system (equipment sizes and operating temperatures) and different types of district and on-site energy generation including micro-generation. Optimal solutions (cost-optimal and nearly-zero-energy integrated building designs) are found among more than 900,000 possible ones (possible combinations of 88 options of 9 design-variables) by simulating only 3000 solutions. The optimization is performed by a modified genetic optimization algorithm (PR_GA, variant of NSGA-II). The quality of the optimization results is verified by comparing the obtained optimal solutions with true optimal ones found by applying exhaustive search technique. The comparison showed that the holistic simulation-based optimization approach can reduce the computational effort significantly achieving an acceptable level of close-to-optimal solutions.
Original languageEnglish
Publication statusPublished - 2013
MoE publication typeNot Eligible
EventIBPSA-Egypt conference on Building Simulation, BS Cairo 2013
: Towards Sustainable & Green Built Environment
- Cairo, Egypt
Duration: 23 Jun 201324 Jun 2013

Conference

ConferenceIBPSA-Egypt conference on Building Simulation, BS Cairo 2013
CountryEgypt
CityCairo
Period23/06/1324/06/13

Fingerprint

Costs
Life cycle
Energy utilization
Temperature
HVAC

Keywords

  • cost optimal
  • simulation-based optimization
  • nZEB

Cite this

Hasan, A. (2013). A holistic simulation-based optimization approach for dimensioning cost optimal and nearly-zero-energy buildings. Paper presented at IBPSA-Egypt conference on Building Simulation, BS Cairo 2013
, Cairo, Egypt.
Hasan, Ala. / A holistic simulation-based optimization approach for dimensioning cost optimal and nearly-zero-energy buildings. Paper presented at IBPSA-Egypt conference on Building Simulation, BS Cairo 2013
, Cairo, Egypt.
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Hasan, A 2013, 'A holistic simulation-based optimization approach for dimensioning cost optimal and nearly-zero-energy buildings' Paper presented at IBPSA-Egypt conference on Building Simulation, BS Cairo 2013
, Cairo, Egypt, 23/06/13 - 24/06/13, .

A holistic simulation-based optimization approach for dimensioning cost optimal and nearly-zero-energy buildings. / Hasan, Ala.

2013. Paper presented at IBPSA-Egypt conference on Building Simulation, BS Cairo 2013
, Cairo, Egypt.

Research output: Contribution to conferenceConference articleScientificpeer-review

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Hasan A. A holistic simulation-based optimization approach for dimensioning cost optimal and nearly-zero-energy buildings. 2013. Paper presented at IBPSA-Egypt conference on Building Simulation, BS Cairo 2013
, Cairo, Egypt.