Calgary November Luncheon

Speaker:

Brian Zelt, PhD, PEng, Senior Advisor, Air and Emissions Science & Innovation, Regulatory Applications, Alberta Energy Regulator

About the Speaker: 

Brian Zelt holds a Ph.D. in Mechanical Engineering, specializing in turbulence and air dispersion modeling. With over 40 years of experience, Brian has established expertise in air dispersion modeling, emissions estimation, boundary layer meteorology, surface water mixing zones, contaminant fate and transport, environmental and human health risk assessment, and quantitative risk assessment for public safety. Brian is the author and co-author of several advanced air quality, hazard, and risk assessment applications, including AERflare, ABflare, AERH2S, ERCBH2S, Shelter, Exposure, Hazard, Risk, Athabasca River Model, Stream Crossings, and Spill. His work integrates rigorous scientific methodologies with practical solutions for complex environmental challenges.

About the Presentation: 

After a brief discussion about the AERflare model, the presentation will cover a list of changes and updates that have been included in the recent updates including:

• AERflare performs screening, intermediate and refined modelling using AERMOD

• Corporate security environment dictated a change to batch file controlled

• Required Hour-by-hour processing

• Required to meet efficiency at design wind speed for Qmax, Qave and Qmin

• What is a blowdown and blowdown duration

• Fall-back to 98% efficiency for sour gas flaring

• When to use Risk Based Criteria for unplanned flaring

• Non-Routine Unplanned – 90th percentile at any time

• Modelling a flare with other sources — Multisource page

Date:

Wednesday, November 19, 2025

Time:

11:30 AM – 1:00 PM

Lunches will be served at 11:30am and the presentation starts at 12:00noon

Venue:

Classroom 1, Platform

407 9 Ave SE, Calgary, AB T2G 2K7

 Cost:

$40 – A&WMA Members

$50 – Non-Members

$15 – Students (includes hot lunch & coffee; GST included)

Webinar Access: Individual ($20) | Group ($80)

Details:

Please register by Monday, November 17 to secure your spot and help us plan for lunch.

Online registration and payment options, including credit card payments, are available through the links below:

• Member  – 40$  https://cpans-awma.myhelcim.com/hosted/?token=bef658d1af3d360df64c43
• Non-member – 50$ https://cpans-awma.myhelcim.com/hosted/?token=ff59be442a52a3d17b5388 
• Student – 15$  https://cpans-awma.myhelcim.com/hosted/?token=f2783b1ee5141263b00bfc
• Webinar (Group) – 80$ https://cpans-awma.myhelcim.com/hosted/?token=d83959aee21b560644ca08
• Webinar (Single) – 20$ https://cpans-awma.myhelcim.com/hosted/?token=db5bd249fb2bf1e9e6c81d