2022-11-18 米国国立再生可能エネルギー研究所(NREL)
報告書で、研究者は強化耐久性試験を採用するためのプロセスフローを提案している。評価方法は、現行の試験規格と国際的および民間企業で使用されている方法を調査して開発された。
強化された方法には、耐候性サイクルの後に光学特性と熱伝導率を性能指標として追加すること、耐候性プロセスの熱サイクルの回数を増やすこと、性能向上方法についてメーカーがより深い洞察を得られるよう吸湿性をより詳細に調べること、などが含まれる。
この報告書は、自社製品の複層ガラスユニットの耐久性評価の強化に関心を持つメーカー、ガラス会社、窓ガラス試験施設、その他の関係者にとっての出発点およびガイドとなることを意図している。
＜関連情報＞
- https://www.nrel.gov/news/program/2022/nrel-researchers-developing-enhanced-methods-for-evaluating-window-energy-performance-lifespan.html
- https://www.osti.gov/biblio/1887442/
複層ガラスおよび真空複層ガラスユニットの耐久性評価強化のためのガイドラインと仕様 Guidelines and Specifications for Enhanced Durability Evaluation of Insulating Glass and Vacuum Insulating Glass Units
Watts, Alliston; Shah, Bipin; Tenent, Robert C.
OSTI.GOV Published:2022-09-08
DOI:https://doi.org/10.2172/1887442
Abstract
The National Renewable Energy Laboratory (NREL) has conducted research into durability of advanced fenestration technologies for almost thirty years. NREL has recently begun to research potential methods to enhance durability evaluation of present market insulating glass units (IGU). This document outlines a proposed process flow for adoption of these methods by interested parties. The proposed evaluation process flow described below is still a topic of active research at NREL as well as with industry partners. NREL will periodically update this document based on research results, both internal and external to NREL that may inform development of improved durability evaluation. This document is also meant to serve as a guideline for interested parties who may wish to engage in enhanced durability evaluation of IGU’s both internally or with external testing laboratories. NREL will work to support adoption of the suggestions in this guideline by interested partners in the hope that these practices are more broadly adopted by the industry. Further research into this area will continue to inform both adaptations of this guideline as well as development of improved durability evaluation standards.
