HVAC Strategies

2018 HPC National Conference Session

Installed Performance of Exhaust Fans and Duct End Terminations

Wednesday, April 25
8:30 AM - 10:00 AM
Location: Franklin 4 (4th Floor)

This session will explain and demonstrate the effects that the duct and duct end terminations have on installed performance. My research indicated that the traditional rating of exhaust fans at 0.1" static pressure is questionable. The duct end termination alone can contribute over .2" static pressure. I will present data that was gathered by Daniel Escatel from Texas A&M as his thesis. The data clearly evidences the reality that duct end terminations are a substantial contributor to installed performance.
I will also discuss and physically show (hands-on) how duct size configuration can cause the fan to fail performance verification. 4" duct should only be used in certain situations and lower airflows because of the restrictive nature of the duct size. 6" duct is preferred and the performance difference is substantial.

Learning Objectives:

Russell Pope

Industry Development Manager
Panasonic Eco Solutions

Russell Pope is the Industry Development Manager for Panasonic Eco Solutions' Ventilation Fans business segment. Russell has been active in the Commercial and Residential Ventilation industry since 2005 and has actively pursued change supported by data for the Industry during. Russell is a member of ASHRAE and currently holds a position on the HVI Board of Directors. Russell is an active participant in Range Hood Capture Efficiency and ASTM development and has assigned himself the challenge of shifting the traditional rating points of bathroom exhaust fans.


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Installed Performance of Exhaust Fans and Duct End Terminations


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