From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU> on behalf of Tom O. Spicer III <tos**At_Symbol_Here**UARK.EDU>
Sent: Tuesday, August 10, 2021 6:46 AM
To: DCHAS-L**At_Symbol_Here**Princeton.EDU <DCHAS-L**At_Symbol_Here**Princeton.EDU>
Subject: Re: [DCHAS-L] New article for ACS Chemical Health & Safety is available online

Yes, there have been several tests even recently.  Homeland Security sponsored the Jack Rabbit II experiments, and a special issue of Atmospheric Environment comparing downwind dispersion models between releases.  The 2015 tests were conducted in a mock urban environment, and 2016 tests considered different release angles.  The special issue is available at:

https://www.sciencedirect.com/journal/atmospheric-environment/special-issue/10FRFPWRB27

Also, more detailed analysis of downward directed chlorine releases can be found at:

https://www.sciencedirect.com/science/article/pii/S0950423018308465

The complicated two-phase flow associated with two-phase flow releases can be difficult to capture with CFD.  Best regards, ts

Tom Spicer, PhD, PE
Professor
Director, Chemical Hazards Research Center
Ralph E. Martin Department of Chemical Engineering
3202 Bell/CHEG
University of Arkansas
Fayetteville, AR  72701

+1 479-575-6516 (campus office)
+1 479-575-4356 (lab office)

Thanks Ralph!

 

FYI: Loss of process containment of Chlorine has been tested over the last couple of decades; see

https://www.youtube.com/watch?v=AQk_vdjq7lw

 

Note: The effect of auto refrigeration might have been understated in the article; see also https://youtu.be/1A41PEGUXYg.

 

The term "short time" in the sentence: "Because the boiling point of chlorine is low (the boiling point is -34.6 �C), the liquid chlorine will evaporate and vaporize in a short time and spread in the atmosphere in the form of chlorine gas" (Page E) is really an assumption.

 

Auto-refrigeration of pool or vessel content will slow down evaporation and, potentially, influence simulation results.

 

Best Regards,

 

Jan Windhorst

From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU> On Behalf Of Ralph Stuart
Sent: August 9, 2021 4:21 AM
To: DCHAS-L**At_Symbol_Here**Princeton.EDU
Subject: [DCHAS-L] New article for ACS Chemical Health & Safety is available online

 

LATEST ARTICLES

ASAP (As Soon As Publishable) articles are edited and published online ahead of issue publication.

Characteristics of Leakage and Diffusion for a Chlorine Storage Tank Based on Simulation Wenhe Wang, Hongfu Mi, et al. doi.org/10.1021/acs.chas.1c00031 Publication Date (Web): August 5, 2021 Read Article

 

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