2020-2021 Build Health Research Report #2
Universal Design Healthy Aging Mobility Thermal Regulation Human Performance Medicine Environmental Science Physiology Psychology Engineering Chemistry
SPORTS PRODUCT DESIGN
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Biology Indoor Ecology | Microbiome Computational Biology Microbial Networks Infection
ENERGY STUDIES I BUILDING LABORAT
BIOLOGY AND THE BUILT ENVIRONMENT CENTER
Radical Collaboration The Institute for Health in the Built Environment advances, integrates, and applies new knowledge from diverse scientific disciplines to support healthy individuals, communities and planet. Our mission is to develop new design concepts for the realization of healthy and sustainable inhabited space. We do this by forming unconventional collaborations that conduct research where architecture, biology, medicine, chemistry and engineering intersect and translate it into design practice through a consortium of invested industry partners with applied impact.
Virtual Daylighting Circadian Simulation Mood
BAKER LIGHT LABOR
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NET ZED LAB
IN GS TORY
R TING RATORY
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BUILD HEALTH INDUSTRY CONSORTIUM
BUILD HEALTH 2020 - 2021
SARS-CoV-2 in the built environment: Daylight and viral decay indoors Funded by IHBE Iván Castro - UO BioBE, IHBE Jens Christoffersen - Velux Peter Foldbjerg - Velux Alen Mahić - UO BioBE, IHBE Kevin Van Den Wymelenberg - UO BioBE, IHBE
Over the past four decades, the University of Oregon Energy Studies in Buildings Laboratory (ESBL) has conducted numerous studies on health and energy in the built environment. We have always sought ways to effectively visualize and communicate that research to the public, the health and architectural industries, and the scientific community. With the COVID-19 pandemic still unfolding, we are now exploring ways to visualize and communicate simulated degradation of viral particles in the built environment resulting from daylighting based on the most current research available. In the shortterm, we believe this information could be critical for building managers and operators to help limit the spread of the coronavirus at the building level by applying passive natural UV exposure to surface-borne viral particles. In the long-term, this information could be used as a building simulation platform to inform glazing product design, architectural design, and HVAC system design relative to human health in the built environment. Our approach involves transferring what we know about air dispersion and settlement of droplets and aerosols onto common indoor surfaces like desktops and exposing them to natural sunlight as a function of glazing property, light spectrum, light intensity, and exposure duration. These variables will be simulated using the state-of-theart Radiance suite of daylighting simulation tools, which has been the industry standard for roughly 25 years.
difficult to find and can vary in data quality and timeresolution between different data sources around the country and the world. This data is required to derive the sky’s direct and diffuse properties while indoor material samples are physically tested to determine their reflectance properties. These properties are then applied to a digital Radiance model to simulate indoor UVB. Radiance does not specify wavelengths, but simply performs raytracing calculations based on the material and light source definitions. As such, it gives us the flexibility to experiment and adjust the inputs depending on our desired outputs. The simulated indoor UVB intensity is then used to calculate and visualize the rate of surface viral degradation via a minute-by-minute 2D heatmap.
We have now developed and tested this simulation workflow. The next steps will focus on digital modeling in order to iterate UVB-based viral degradation across model geometry, orientation, location, and sky conditions. Image (above): ESBL office space on the Eugene, Oregon campus modeled for simulation. Red dot indicates camera perspective depicted in images. (following pages) using the modeled office space, simulated workflow used to depict SARS-CoV-2 timeseries inactivation from daylight.
The key piece to this approach is obtaining site-specific, spectrally resolved solar radiation data, which can be
A Unique Cross-Disciplinary Collaboration Between Architecture, Scientists and Industry at University of Oregon
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BUILD HEALTH 2020 - 2021
SARS-CoV-2 in the built environment Daylight and viral decay indoors
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INSTITUTE FOR HEALTH IN THE BUILT ENVIRONMENT buildhealth.uoregon.edu
BUILD HEALTH 2020 - 2021
SARS-CoV-2 in the built environment Daylight and viral decay indoors
A Unique Cross-Disciplinary Collaboration Between Architecture, Scientists and Industry at University of Oregon
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Kevin Van Den Wymelenberg, PhD
Director, Institute for Health in the Built Environment Director, Energy Studies in Buildings Laboratory Co-Director, Biology and the Built Environment Center Associate Professor of Architecture
Mark Fretz
Associate Director of Knowledge Exchange Institute for Health in the Built Environment mfretz@uoregon.edu 503 412 3656 | cell 503 539 0033
College of Design | Portland 105A White Stag Building 70 NW Couch Street University of Oregon Portland, Oregon 97209
College of Design | Eugene 103 Pacific Hall University of Oregon Eugene, OR 97403-5231
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