PE Problem #15

7/24/2020

A chemical processing plant has an explosive release in one of the mixing areas, causing a fireball that at 16 meters and a radial distance of 24 meters causes a radiant heat exposure of 6.2 (kW/sq.m.)^4/3-min. What is the expected burn effect for workers with exposed skin?
a. Minor irritation
b. 1st Degree burn / severe skin pain
c. 2nd Degree burn
d. 3rd degree (full thickness) burn

Solution | Posted 07/27/20

c. 2nd Degree burn, based on the exposed skin radiant heat exposure as listed in NCEES 10.3.3.2. The fireball diameter and distance are extra information in this problem.

5 Comments

Rachel

7/24/2020 10:17:49 am

NinaB

7/24/2020 10:34:55 am

c. second degree burns.4.0-12.2( Kw/m2)4/3min table 10.3.3.2 NCEES page.136

joe

7/24/2020 10:46:26 am

c

stop listing the answer location. congratulations on your find. give others a chance to search. you are not the only one preparing for the PE.

Joe Meyer

7/24/2020 10:49:51 am

Joe - appreciate the input but it's quite welcome to have the information and input from others. It's been welcomed for some years now.

Some have asked in the past - if you don't want to see others' responses, use this link and don't click on "Comments":

https://www.meyerfire.com/daily/category/pe-sample-problems

This way you'll see all the questions without others' answers. Hope this helps, thanks!

7/25/2020 03:26:29 am

c. 2nd Degree burn

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