Thermal performance of an electrochromic vacuum glazing

Yueping Fang, Philip Eames

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Using a three-dimensional finite volume model, the thermal performance of an electrochromic vacuum glazing was simulated for insolation intensities between 0 and 1200 W m−2. The electrochromic evacuated glazing simulated consisted of three glass panes 0.5 m by 0.5 m with a 0.12 mm wide evacuated space between two 4 mm thick panes supported by 0.32 mm diameter pillars spaced on a 25 mm square grid contiguously sealed by a 6 mm wide metal edge seal. The third glass pane on which the electrochromic layer was deposited was assumed to be sealed to the evacuated glass unit. The simulations indicate that when facing the indoor environment, the temperature of the glass pane with the electrochromic layer can reach 129.5 °C for an incident insolation of 600 W m−2. At such temperatures unacceptable occupant comfort would ensue and the durability of the electrochromic glazing would be compromised. The glass pane with the electrochromic layer must therefore face the outdoor environment.
Original languageEnglish
Pages (from-to)3602-3610
Number of pages9
JournalEnergy Conversion and Management
Volume47
Issue number20
DOIs
Publication statusPublished - Dec 2006

Keywords

  • Electrochromic vacuum glazing
  • Finite volume model
  • Thermal performance
  • Insolation
  • Energy absorption

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