Ultraviolet Air and Surface Treatment
ASHRAE Technical Committee 2.9



Agenda

Tip: Upload Your Agenda documents to the /documents/agenda/ directory and it will show up here automatically.

TC0209 Meeting Agenda 2016 St Louis 20160626

MO Summer Conference 20160626

MO Summer Conference 20160626 1

Upcoming TC Meetings

Tip: Copy and Paste Your Upcoming Meeting Information in this area.

 
Location: St Louis, MO

Saturday, 6/25/2016

Room

10:00 AM - 12:00 PM SSPC 185 Methods of Test to Inactivate Microorganisms in HVAC Systems with UV-C Lights 

America's Convention Center Complex Room 200 (2)

1:00 PM - 3:00 PM GPC 37 Upper Room Ultraviolet Germicidal (UV-C) Devices to Control the Transmission of Airborne Pathogens

America's Convention Center Complex Room 200 (2)

2:30 PM - 3:00 PM US TAG to ISO/TC 142 Cleaning Equipment for Air and other Gases

America's Convention Center Complex Room 220

Sunday, 6/26/2016

 

8:00 AM - 10:00 AM Programs

America's Convention Center Complex Room 120 (1)

10:00 AM - 12:00 PM Handbook

America's Convention Center Complex Room 120 (1)

1:00 PM - 3:00 PM Standards

America's Convention Center Complex Room 120 (1)

Monday, 6/27/2016

 

8:00 AM - 10:00 AM Research

America's Convention Center Complex Room 120 (1)

10:00 AM - 12:00 PM Main Committee

America's Convention Center Complex Room 120 (1)

 

 

Minutes

Tip: Upload your Minutes documents to /documents/meeting-information/ directory for them to show up here. The file names must include minutes as in "TC0709 draft Minutes Atlanta 20150628.pdf".

Committee Chair

Tip: This section automatically generated from site Configuration file.

Brian Hafendorfer TC0209@ashrae.net

Committee Scope

Tip: This section automatically generated from site Configuration file.

TC 2.9 is concerned with all aspects of equipment and systems that utilize ultraviolet radiation to destroy or deactivate chemical and/or biological air and surface contaminants in HVAC systems and indoor spaces, including, but not limited to, effectiveness, safety, maintenance and economics.

icon

Upcoming Society Conferences

2016 Annual Conference
June 25 - 29, 2016
St. Louis, Missouri

2017 Winter Conference
Jan. 28 - Feb. 1, 2017
Las Vegas, Nevada

Tip: You can put any type of content in the following section.

Additional Information

TC Sponsored Sessions:

Protecting Coils: UV, Odor and Frost
Monday, January 25, 2016: 9:45 AM-10:45 AM
Orlando Ballroom V (Hilton Orlando)
Chair: Dunstan Macauley, P.E., WSP
Cooling coils are essential to the HVAC industry and should be protected to ensure optimal performance for air pressure drop, frost and defrost cycles, and avoiding odor generation. These papers discuss in detail the impact of the UV irradiation of the cooling coil in terms of energy use as well as odor and contaminant levels in the facility. In addition, the coil’s design to improve frosting and defrosting performance is analyzed in hopes to improve heat conduction for the unit.
1  Field Study of Energy Use-Related Effects of Ultraviolet Germicidal Irradiation of a Cooling Coil (OR-16-C031)
Joseph Firrantello, P.E., Penn State University; William Bahnfleth, Ph.D., P.E., Pennsylvania State University; Ross Montgomery, P.E., Quality Systems and Technology Inc.; Paul Kremer, Pennsylvania State University
2  Using Patterned Surface Wettability for Improved Frosting/Defrosting Performance (OR-16-C032)
Nicole Okamoto, Ph.D., San Jose State University; Andrew Sommers, Ph.D., Miami University; Isaac Tineo, San Jose State University; Christian Petty, Miami University; Jonathan Carlson, San Jose State University; Dean DiBlasio, San Jose State University
3  Odor Due to UV Disinfection (OR-16-C033)
Normand Brais, Ph.D., P.E., Sanuvox Technologies; Benoit Despatis, P.Eng., Sanuvox Technologies


Field Study of Energy Use-Related Effects of Ultraviolet Germicidal Irradiation of a Cooling Coil (OR-16-C031)
Joseph Firrantello, P.E., Penn State University
William Bahnfleth, Ph.D., P.E., Pennsylvania State University
Ross Montgomery, P.E., Quality Systems and Technology Inc.
Paul Kremer, Pennsylvania State University
The energy use-related effects of ultraviolet germicidal irradiation (UVGI) to mitigate biological fouling (biofouling) of a chilled water cooling coil are investigated via a field study. A visibly bio-fouled cooling coil in an air-handling unit serving an operational building in a hot, humid climate is monitored for 5 months to establish a fouled coil baseline. Parameters monitored include air flow rate, airside pressure drop, air temperature and humidity upstream and downstream of the coil, chilled water flow rate, entering and leaving chilled water temperature and waterside pressure drop. A UVGI coil irradiation system is installed on the downstream side of the coil following typical manufacturer guidelines, and the system is then passively monitored over a period of 10 months. An average improvement of 5.2% to 7.9% in coil airside pressure drop, and 11.9% to 12.7% in heat transfer coefficient (both 95% confidence interval) are estimated by comparing data from the baseline and post-irradiation periods. Complexities of the physical phenomena involved, e.g. the effect of both airflow and latent load on airside pressure drop, are taken into account.