In this episode, Bob and Mike talk to Ron Huffman about the techniques we can use to mitigate propane emergencies.
Our hazardous materials training manual, National Emergency Response Hazmat Drills: 50 Drills for Use with Hazardous Materials Personnel, is finally available on Amazon!
Complete Show Notes
3:45 Introduction to Ron Huffman
- 30-year career firefighter in the city of New Castle, Indiana
- Spent 14 years in the propane industry – responsible for rebuilding valves and trucks and rebuilding tanker undercarriages
- Has been traveling the state of Indiana for 30 years doing propane classes
4:45 Why Would We Flare?
- We either want vapor space (to reduce vapor) or to reduce the volume of the tank
- Might flare for leaking valves, leaking piping, and leaking tanks
- In some cases, we might flare to get pressure down
7:15 Gas (Vapor) Flares vs. Liquid Flares
- From a first responder POV, it’s a matter of time – if we’re getting close to the end of the run, we’re going to flare off vapors
- We’re typically burning vapor to reduce internal pressure – tank may be compromised or need repairs
- If we want to completely get rid of the product, we’re going with liquid
- If we want to save the product for some reason, we’re going with vapor
11:40 What is Water Injection?
- If you can get water in the tank at a pressure higher than the tank’s pressure, the water goes to the bottom
- The liquid leak coming out of the bottom will convert into a water leak
- Converts a billowing cloud of liquid propane into a harmless water leak in as little as 15 seconds
- When you have water coming out of your flare, let the vapor burn off
- You’re basically creating a dam inside the tank because the water will freeze at the bottom and plug the leak
21:25 Determining the Pressure in a Tank
- If we know what the temperature outside is (and haven’t introduced heat to the tank), we can just use propane’s chemical-physical properties
- We can use digital probes to determine the temperature in the tank – make sure you’re close enough to get an accurate reading
- Most digital probes only read well at 90 degrees from what you’re trying to measure
- You can only flare what you can get out of the tank – remember that your system is always based off the smallest orifice
34:35 Contacting Ron
- Phone: (765) 524-4848
Have a question? Send an email to firstname.lastname@example.org or leave a message on our Haz Mat Guys comment hotline: 843-628-1484
- THMG183 – Leaking MC331 Scenario, Part I
- THMG184 – Leaking MC331 Scenario, Part II
- THMG186 – MC331 Wrap-Up & Some Tidbits