ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 33

Can cooling effects provided by air-circulating fans
improve the resilience of existing mechanical systems while
maintaining occupant thermal comfort amid changing
climatic conditions?
Yes. The demonstrated abilities of fans to supplement
air-conditioning systems and offset design loads
show fans' potential as a means to address future cooling
challenges. Owners of existing buildings who add fans
will be able to mitigate predicted increases in coolingload
demand and electrical consumption, while owners
of yet-to-be-constructed buildings who utilize fans will
be able to maintain a reasonable design cooling load. In
short, the use of fans will ensure safer and more effi cient
buildings under future climatic conditions.
While the scope of this analysis is relatively limited,
the results show interesting potential for further and
more rigorous research.
References
1) IPCC. (1990). IPCC fi rst assessment report. Geneva,
Switzerland: Intergovernmental Panel on Climate Change.
2) UN. (2021, August 9). IPCC report: 'Code red' for human
driven global heating, warns UN chief. Retrieved from https://
bit.ly/IPCC_CodeRed
3) IPCC Working Group I. Climate change 2021: The physical
science basis. (Cambridge, UK and New York: Cambridge
University Press, forthcoming).
4) Bastin J-F, et al. (2019). Understanding climate change
from a global analysis of city analogues. PLOS ONE, 14.
Retrieved from https://bit.ly/Bastin_Understanding
5) ASHRAE. (2021). Climatic data for building design standards.
ANSI/ASHRAE Standard 169. Peachtree Corners, GA: ASHRAE.
6) ICC. (2021, August). International codes-Adoption by state
(August 2021). Retrieved July 8, 2022, from https://bit.ly/
Codes_Adoption
7) Aijazi, A.N., Best, R., & Schiavon, S. (2019, September).
Optimizing energy conservation measures in a grocery store
using present and future weather fi les. Proceedings of the
International Building Performance Simulation Association, 16.
Retrieved from https://bit.ly/Aijazi_0919
8) OSHA. (2021, October 26). US Department of Labor
initiates rulemaking to protect workers, outdoors and indoors,
from heat hazards amid rising temperatures. Retrieved July 8,
2022, from https://bit.ly/OSHA_102621
9) EERE. (n.d.). Commercial reference buildings. Retrieved
from https://bit.ly/Reference_Buildings
10) Taber, C., & Colliver, D. (2018, December). Thermal
comfort in heated-and-ventilated-only warehouses. ASHRAE
Journal, pp. 12-18. Retrieved from https://bit.ly/Taber_Colliver
11) National Weather Service. (n.d.). Heat forecast tools.
Retrieved July 8, 2022, from https://bit.ly/Heat_Forecast
12) Tartarini, F., Schiavon, S., Cheung, T., & Hoyt, T. (2020, July
1). CBE Thermal Comfort Tool: Online tool for thermal comfort
calculations and visualizations. SoftwareX, 12. Retrieved from
https://bit.ly/SoftwareX_CBE
13) Tartarini, F., Schiavon, S., Jay, O., Arens, E., & Huizenga,
C. (2022, January). Application of Gagge's energy balance
model to determine
Peak Cooling Lead
50
40
30
20
10
-10
-20
-30
-40
-50
1A 2A 2B 3A 3B 3C 4A 4B 4C 5A 5B 6A 6B 7 8
Representative-City Climate Zone
HVAC Electricity Consumption
50,000
40,000
30,000
20,000
10,000
-10,000
-20,000
-30,000
-40,000
-50,000
humidity-dependent
temperature thresholds
for healthy adults using
electric fans during
heatwaves. Building and
Environment. Retrieved
from https://bit.ly/
Tartarini_Gagge
FIGURE 3. Comparison of HVAC-system performance with fans, future conditions.
www.amca.org
About the
Authors
David Rose is senior
manager for technical
strategy and innovation
and Will Conner is
an engineer for Big Ass
Fans.
2022 AMCA inmot ion 33
Peak-Cooling-Load Increase, %
Kilowatt-hours

https://www.bit.ly/Bastin_Understanding https://www.bit.ly/Codes_Adoption https://www.bit.ly/Codes_Adoption https://www.bit.ly/Aijazi_0919 https://www.bit.ly/OSHA_102621 https://www.bit.ly/Reference_Buildings https://www.bit.ly/Taber_Colliver https://www.bit.ly/Heat_Forecast https://www.bit.ly/IPCC_CodeRed https://www.bit.ly/IPCC_CodeRed https://www.bit.ly/SoftwareX_CBE https://www.bit.ly/Tartarini_Gagge https://www.bit.ly/Tartarini_Gagge http://www.amca.org

ASHRAE Journal Supplement - AMCA InMotion - November 2022

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