IHBE Faculty Research

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https://hdl.handle.net/1794/10456

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Browsing IHBE Faculty Research by Author "Andersen, Marilyne"

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    The Impact of Light Distribution and Furniture Layout on Meeting Light Exposure Objectives in an Office – A Simulation Case Study
    (Institute for Health in the Built Environment, University of Oregon, 2021) Danell, Megan; Hartmeyer, Steffen; Petterson, Lisa; Davis, Robert; Andersen, Marilyne; Rockcastle, Siobhan
    The present simulation case study compares the impact of electric lighting distributions in relation to work-desk location and orientation on work-plane and eye-level illumination within a small private office. The aim of this study is to better understand the implications of lighting and furniture design decisions on ocular light exposure with consideration of work-plane illuminance based on current recommendations by the IES and the International WELL Building Institute. Five electric lighting configurations, 3 occupant seating locations, and 3 view directions were simulated and compared. No conditions met work-plane and eye-level illumination targets at the same time. Only by adjusting the spectrum and output intensity were both illumination targets achieved. Overall, vertical wall illumination when seated close to the illuminated wall resulted in the highest eye-level light exposure. These results indicate that vertical plane illumination can act as an effective lighting design for both horizontal and vertical illuminance when furniture configurations are selected accordingly.
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    OCUVIS: A Web-Based Visualizer for Simulated Daylight Performance
    (Institute for Health in the Built Environment, University of Oregon, 2018-06) Rockcastle, Siobhan; L. Ámundadóttir, María; Andersen, Marilyne
    This paper introduces an interactive web-based visualizer for multi-metric daylight simulation results, named OCUVIS. It is able to display simulation-based results for a diverse range of ocular human-centric metrics such as non-visual health potential (nvRD), daylight-related visual interest (mSC5) and visual comfort (DGP with Ev), as well as horizontal illumination metrics such as spatial Daylight Autonomy (sDA), Annual Sunlight Exposure (ASE) and Daylight Factor (DF)). To provide a holistic representation of performance across a multi-directional field-of-view, OCUVIS creates an interactive visualization of results over time and across space, linking temporal and 3D graphics. This allows the user to explore the impacts of dynamic sky conditions, view position, view direction and program use on localized and building scale performance. OCUVIS bridges the gap between human and building-scale daylight potential to offer a more holistic and intuitive representation of daylight performance in buildings.