Zero Energy Windows, D. Arasteh, S. Selkowitz, J. Apte, M. LaFrance, 2006 ACEEE Summer Study on Energy Efficiency in Buildings,2006
Highly insulating products in heating applications can admit more useful solar gain than the conductive energy lost through them. Dynamic glazings can modulate solar gains to minimize cooling energy needs and, in commercial buildings, allow daylighting to offset lighting requirements. The needed solutions vary with building type and climate. Developing this next generation of zero-energy windows will provide products for both existing buildings undergoing window replacements and products which are expected to be contributors to zero-energy buildings.

Highly Insulating Glazing Systems using Non-Structural Center Glazing Layers, D. Arasteh, H. Goudey, C. Kohler, 2008, To be published at ASHRAE June 2008 meetng.
This paper shows that triple glazing systems with non-structural center layers which do not create a hermetic seal at the edge have the potential to be as thermally efficient as standard designs, while potentially removing some of the production and product integration issues that have discouraged the use of triples.

Zero Energy Window Prototype, 2007, DOE Factsheet.
This prototype makes two significant departures from existing mainstream window systems. In order to reach U factors significantly
below 0.3, one must abandon a conventional low-e, gas filled double glazed system, and switch to either vacuum glazing, aerogel,
or a multilayer window system.

State-of-the-Art Highly Insulating Window Frames - Research and Market Review, A. Gustavsen, B. Petter Jelle, D. Arasteh, C.Kohler. 2007. Norwegian University of Science and Technology
This document reports the findings of a market and research review related to state-of-the-art highly insulating window frames. The market review focuses on window frames that satisfy the Passivhaus requirements (window U-value less or equal to 0.8 W/m2K ), while other examples are also given in order to show the variety of materials and solutions that may be used for constructing window frames with a low thermal transmittance (U-value). The market search shows that several combinations of materials are used in order to obtain window frames with a low U-value. The most common insulating material seems to be Polyurethane (PUR), which is used together with most of the common structural materials such as wood, aluminum, and PVC.

 

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