Multiphysics design optimization model for structural walls incorporating phase-change materials

Research output: Contribution to journalArticle

Abstract

The development of energy-efficient building envelopes has been an ongoing effort in many countries owing to the pressing need to achieve energy independence. In this study numerical optimization techniques and finite element analysis provide the means to find a compromise point between adding phase-change materials (PCMs) to a concrete wall, the energy savings and the wall's structural capacity. The primary objective is to minimize the overall lifetime cost of a wall by understanding the implications of PCM layer thickness, material properties and position in the wall on the overall energy consumption. While it is difficult to manually configure a typical wall for the lowest total cost, the developed computational framework provides an automated tool for searching for the best design. The results show that successful designs can be obtained where material and energy costs can be minimized through a judicious combination of existing building materials with thermal energy storage materials.

Original languageEnglish (US)
Pages (from-to)308-327
Number of pages20
JournalEngineering Optimization
Volume47
Issue number3
DOIs
StatePublished - Mar 4 2015

Fingerprint

Phase Change Material
Phase change materials
Multiphysics
Optimization Model
Costs
Energy Storage
Numerical Optimization
Energy Saving
Thermal energy
Numerical Techniques
Energy
Energy Efficient
Material Properties
Energy storage
Optimization Techniques
Envelope
Energy Consumption
Lowest
Lifetime
Materials properties

Keywords

  • cost minimization
  • finite element analysis
  • numerical optimization
  • phase-change material

ASJC Scopus subject areas

  • Control and Optimization
  • Industrial and Manufacturing Engineering
  • Applied Mathematics
  • Computer Science Applications
  • Management Science and Operations Research

Cite this

Multiphysics design optimization model for structural walls incorporating phase-change materials. / Stockwell, A.; Neithalath, Narayanan; Rajan, Subramaniam.

In: Engineering Optimization, Vol. 47, No. 3, 04.03.2015, p. 308-327.

Research output: Contribution to journalArticle

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