The ASHRAE Epidemic Task Force has updated its reopening guidance for HVAC systems to help mitigate the transmission of the COVID-19 virus.
“The Building Readiness Guide includes additional information and clarifications to assist designers and commissioning providers in performing pre- or post-occupancy flush calculations to reduce the time and energy to clear spaces of contaminants between occupancy periods,” said Wade Conlan, ASHRAE Epidemic Task Force Building Readiness team lead, in a news release. “New information includes the theory behind the use of equivalent outdoor air supply, method for calculating the performance of filters and air cleaners in series, and filter droplet nuclei efficiency that help evaluate the systems’ ability to flush the building.”
There is now a link to a view-only Google Sheet that can be downloaded for use. This will help determine the available equivalent outdoor air changes and time to perform the flush.
The guide now also includes data to consider for heating of outdoor air and the potential impact on pre-heat coils in systems.
Related Stories
Codes and Standards | Oct 22, 2019
Efficient material design, low-carbon concrete are critical to cutting GHG emissions in construction
Enhancing building utilization and reusing materials also aid carbon reduction.
Codes and Standards | Oct 21, 2019
Historic properties not exempt from Americans With Disabilities Act
Some exceptions do apply.
Codes and Standards | Oct 18, 2019
St. Louis could save $61 million per year in energy costs by improved building performance
GHG gases can be reduced by at least 11% with upgrades to public buildings and large private buildings.
Codes and Standards | Oct 17, 2019
Slow payments cost GCs and subs $64 billion annually
Study finds 51-day average payment turnaround.
Codes and Standards | Oct 16, 2019
Cool pavement can make people hotter
Reflective coatings channel sunlight raising temperatures where pedestrians walk.
Codes and Standards | Oct 15, 2019
Utah adopts 2018 International Energy Conservation Code
Provisions include increased building envelope performance and reduced air infiltration.
Codes and Standards | Oct 14, 2019
States continue to beef up energy efficiency codes
ACEEE 50-state scorecard finds latest IECC code gaining adherents.
Codes and Standards | Oct 9, 2019
DOE releases Better Buildings Healthcare Financing Primer
Outlines financial strategies to implement energy-efficiency projects in healthcare.
Codes and Standards | Oct 8, 2019
Zero Carbon Buildings for All aims for ambitious emission reduction targets
Organization makes commitment to net zero carbon for all buildings by 2050.
Codes and Standards | Oct 7, 2019
Tailgating remains a critical building security threat, say security professionals
Few buildings provide beefed up provisions to counteract threat.