commercial building design for covid -19 & beyond library/technical...fy2018 business plan 01...
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FY2018 BUSINESS PLAN 01
COMMERCIAL BUILDING DESIGN FOR COVID-19 & BEYONDJune 18th, 2020
Luke Leung, PE, P ENG, LEED Fellow
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ENVIRONMENT
SPACES
SYSTEMS
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ENVIRONMENT
SPACES
SYSTEMS
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ACCELERATORS TO OCCUPANCY
SKIDMORE, OWINGS & MERRILL LLP
OUTDOOR VS. INDOOR
Indoor transmission of SARS-CoV-2 Hua QIAN, Te MIAO2, Li LIU , Xiaohong ZHENG , Danting LUO , and Yuguo Li,
2 7322
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SOLAR IMPACTSARS-COV2 :
TOP: AIR90% reduction from 200 minutes to 4.5 minutes
BOTTOM: STAINLESS STEEL90% reduction in 7 minutes
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6https://projects.iq.harvard.edu/files/covid-pm/files/pm_and_covid_mortality.pdf
AIR QUALITY
“…increase of only 1 g/m3 in PM2.5 is associated with a 15% increase in the COVID-19 death rate..”
Harvard T.H. Chan School of Public Heath
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ENVIRONMENT
Indirect Health Effects of Relative Humidity Indoor EnvironmentArundel AV, Sterling EM et al.
Relative Humidity:• 40-60%
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ENVIRONMENT
Indirect Health Effects of Relative Humidity Indoor EnvironmentArundel AV, Sterling EM et al.
Relative Humidity:• 40-60%
viruses
Viruses
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ENVIRONMENT
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RESUSPEND - FLOOR
Detection of air and surface contamination by SARS-CoV-2 in hospital rooms of infected patientsPo Ying Chia, Kristen Kelli Coleman, for the Singapore 2019 Novel Coronavirus Outbreak Research Team
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https://www.pinterest.com/pin/368732288234236219/
CARPET VS. HARD FLOOR
Almost 20 Times More Material
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ENVIRONMENT
SPACES
SYSTEMS
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#
Epidemic plan from base building
BASE BUILDING CONSIDERATIONS
“Employees should wear a cloth face covering to cover their nose and mouth in all areas of the business.”COVID-19 Employer Information for Office Buildings
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LOBBY
1. Pressurized2. Sanitized3. Time - touchless
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RESUSPEND - TOILET
Detection of air and surface contamination by SARS-CoV-2 in hospital rooms of infected patientsPo Ying Chia, Kristen Kelli Coleman, for the Singapore 2019 Novel Coronavirus Outbreak Research Team
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Occupancy Indicator
Occupancy Indicator
TOILET
1. Continuous exhaust2. Door hold open3. Consider occupants indicator
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WILL OUTBREAKS IMPACTOTHER FLOORS?
• Korean Call Center:o 97 of the 811 employees tested positiveo 94 sat on the same floor
https://wwwnc.cdc.gov/eid/article/26/8/20-1274_article
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ATRIUM
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ENVIRONMENT
SPACES
SYSTEMS
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DOAS – RADIANT
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DOAS – CHILLED BEAM
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DOAS - NIST
https://pages.nist.gov/CONTAM-apps/webapps/FaTIMA/
Integrated Exposure: 1.5E4 (#s/M3)
Exposure Concentration: 2.3E0 (#s/M3)
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DOAS – FAN COIL OR VRF
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VAV
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2980
%
Fan
Fan
20%
20%
VAV SYSTEMMINIMUM OUTSIDE AIR
Time
VirusCount
Enhanced Filter
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MERV 8
MERV 13
BETTER FILTERMERV 8 - MERV 13
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MERV 8
MERV 13
BETTER FILTERMERV 8 - MERV 13
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MERV 8 VS MERV 13
https://pages.nist.gov/CONTAM-apps/webapps/FaTIMA/
Integrated Exposure: 8.0E3 (#s/M3)
Exposure Concentration: 1.6E0 (#s/M3)
Integrated Exposure: 4.8E3 (#s/M3)
Exposure Concentration: 1.1E0 (#s/M3)VAV with MERV 13
(Minimum OA)
VAV with MERV 8(Minimum OA)
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VAV SYSTEM100% OUTSIDE AIR
Fan
Fan
Filter and Coil
Shutoff Return
100%
100%
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MERV 8 VS 100% OUTSIDE AIR
https://pages.nist.gov/CONTAM-apps/webapps/FaTIMA/
Integrated Exposure: 8.0E3 (#s/M3)
Exposure Concentration: 1.6E0 (#s/M3)
Integrated Exposure: 4.5E3 (#s/M3)
Exposure Concentration: 1.0E0 (#s/M3)VAV with
100% Outside Air
VAV with MERV 8Minimum OA
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35https://pages.nist.gov/CONTAM-apps/webapps/FaTIMA/
Integrated Exposure: 8.0E3 (#s/M3)
Exposure Concentration: 1.6E0 (#s/M3)
Integrated Exposure: 4.5E3 (#s/M3)
Exposure Concentration: 1.0E0 (#s/M3)VAV with
100% Outside Air
VAV with MERV 8(Minimum OA)
Integrated Exposure: 4.8E3 (#s/M3)
Exposure Concentration: 1.1E0 (#s/M3)VAV with MERV 13
(Minimum OA)
VAV MINI VS 100% OA
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DOAS VS VAV
https://pages.nist.gov/CONTAM-apps/webapps/FaTIMA/
Integrated Exposure: 1.0E4 (#s/M3)
Exposure Concentration: 2.3E0 (#s/M3)
Integrated Exposure: 8.0E3 (#s/M3)
Exposure Concentration: 1.6E0 (#s/M3)
Integrated Exposure: 4.8E3 (#s/M3)
Exposure Concentration: 1.1E0 (#s/M3)
DOAS
VAV with MERV 13(Same OA as DOAS)
VAV with MERV 8(Same OA as DOAS)
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#
UVC LIGHTS
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EMERGING TECHNOLOGIES
• Emerging light spectrum technologies:o 315-400 nm UVa fixtureso 220 nm Far UVc lampso 405 nm visible spectrum lamps
• Pulsed Xenon (Pulsed UV)
• Bipolar Ionization/Corona Discharge
• Photocatalytic Oxidation (PCO)
http://2bize.com/uv%20spectrum.html
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HEALTH THREATS (UN WHO)3. Pandemic
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HEALTH THREATS (UN WHO)2. Chronic Diseases
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HEALTH THREATS (UN WHO)1. Climate Change
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FY2018 BUSINESS PLAN 01
COMMERCIAL BUILDING DESIGN FOR COVID-19 & BEYONDJune 18th, 2020
Luke Leung, PE, P ENG, LEED Fellow
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#
ELEVATORS
1. Prolong exposure – 15 minutes
http://www.elitecabs.com/index.php/cab-designs/elite-cab-design1205/freight-and-s?fID=65
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ELEVATORS
1. Prolong exposure – 15 minutes
2. Turn on elevator lift ventilation fan- 6’x6’x8’- 95% Elimination of material in the air: - 200 CFM ( 340 M3/Hr) = 4.3 minutes
http://www.elitecabs.com/index.php/cab-designs/elite-cab-design1205/freight-and-s?fID=65
Exhaust Fan
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#
ELEVATORS
1. Prolong exposure – 15 minutes
2. Turn on elevator lift ventilation fan- 6’x6’x8’- 95% Elimination of material in the air: - 200 CFM ( 340 M3/Hr) = 4.3 minutes
3. Consider portable cleaner with HEPA filter
4. Open every doorhttp://www.elitecabs.com/index.php/cab-designs/elite-cab-design1205/freight-and-s?fID=65