Visualizing the Daylight Systemic: Measuring the Value of the Architectural Envelope + Continuous Dimming Strategies with HDR Photography in Existing Classroom Settings

摘要

There is a growing body of physical evidence that supports the notion that daylighting has a significant impact upon the energy performance of our nations schools. The underlying premise of this paper introduces the idea that HDR photography is a useful tool in which to visualize the underlying systemic principles that in turn gauge the value of integrated lighting design practice. The approach presented here has utilized HDR photography as an analytic device to explore its value to differenceate the integrative nature of daylight, electric light and the control systems utilized in two different public schools. The case study compares two contemporary school settings within the same climatic region. The goal of this case study was to discover if a visual corollary between daylight distribution and the appropriate application of electric lighting systems could be achieved. The method presented first isolated the daylight and electric lighting contributions to evaluate the degree of energy savings that were possible in each base case classroom. The work presented here is formatted with the intention of developing a discussion around how the evidence from HDR photographic sequences were used to provide a visual glimpse into the five critical, and intrinsic elements that measure integrated lighting performance: Daylight, Electric lighting, Glare, Visual and Lighting Control Systems. Here we present the rational, our approach and visual evidence of our initial findings.