A first-generation prototype dynamic residential window

Kohler, Christian ; Goudey, Howdy ; Arasteh, Dariush

Lawrence Berkeley National Laboratory

关键词: Efficiency;    Heating;    Residential Buildings;    Shading;    Windows;   

DOI  :  10.2172/861017
RP-ID  :  LBNL--56075
RP-ID  :  DE-AC02-05CH11231
RP-ID  :  861017

美国|英语

来源: UNT Digital Library

【 摘 要 】

We present the concept for a ''smart'' highly efficient dynamic window that maximizes solar heat gain during the heating season and minimizes solar heat gain during the cooling season in residential buildings. We describe a prototype dynamic window that relies on an internal shade, which deploys automatically in response to solar radiation and temperature. This prototype was built at Lawrence Berkeley National Laboratory from commercially available ''off-the-shelf'' components. It is a stand-alone, standard-size product, so it can be easily installed in place of standard window products. Our design shows promise for near-term commercialization. Improving thermal performance of this prototype by incorporating commercially available highly efficient glazing technologies could result in the first window that could be suitable for use in zero-energy homes. The unit's predictable deployment of shading could help capture energy savings that are not possible with manual shading. Installation of dynamically shaded windows in the field will allow researchers to better quantify the energy effects of shades, which could lead to increased efficiency in the sizing of heating, ventilation, and air conditioning equipment for residences.