ASHRAE recently published the updated 2017 Version of Thermal Comfort Standard Standard 55-2017.
The update of the 2013 edition includes a new section with calculations from direct solar radiation. ANSI/ASHRAE Standard 55-2017, Thermal Environmental Conditions for Human Occupancy, simplifies the language of the 2013 standard and clarifies the three comfort calculation approaches in Section 5.3.3, "Elevated Air Speed."
The 2017 edition includes the new requirement to calculate the change in occupants' thermal comfort from direct solar radiation. Other additions include simplification of Appendix A to a single procedure for calculating operative temperature; clearly stated requirements and calculation procedures appearing sequentially; an update to the scope to ensure the standard is not used to override health, safety; critical process requirements; and removal of permissive language.
The ANSI/ASHRAE Standard 55-2017 is available for $89 for ASHRAE members for $105 for non-members.
Related Stories
Codes and Standards | Mar 5, 2019
Persistent flooding having economic impact on coastal cities
Atlantic City, Annapolis among communities affected.
Codes and Standards | Mar 1, 2019
$1 billion Boston hospital project to include extensive disaster resiliency features
Mass. General expansion will be designed for four days of shelter in place.
Codes and Standards | Mar 1, 2019
U.S. cities have become more dangerous for bicyclists and pedestrians
Reduced speed limits, traffic calming, better education seen as keys to improvement.
Codes and Standards | Feb 28, 2019
High-income renters now the fastest-growing housing market segment
Growth is fastest in mid-sized cities with strong economies.
Codes and Standards | Feb 27, 2019
Katerra launches software platform for ‘entire lifecycle of the building process’
Firm is accepting industry applicants to test the product.
Codes and Standards | Feb 26, 2019
AAMA updates two specifications for test methods related to seismic drift
For evaluating window wall, curtain wall and storefront systems.
Codes and Standards | Feb 22, 2019
California’s carbon reduction goals to be aided by programs to convert heating, hot water systems
Switch from propane to electricity is critical to plan.
Codes and Standards | Feb 21, 2019
Researchers develop software that can calculate potential solar energy yield at any location
Accounts for dynamic shading from trees, buildings and other structures.
Codes and Standards | Feb 20, 2019
Hospitals not making much progress in reducing their carbon footprint
Energy benchmarking survey shows flat emissions pattern over past 20 years.
Codes and Standards | Feb 15, 2019
Super Bowl stadium helps alleviate Atlanta’s flood problems
Capacity to store more than 2 million gallons of storm water on site.