2020 RETA Breeze Sept-Oct

2020 VIRTUAL CONFERENCE PREVIEW

VESSELS OPERATING AT TEMPERATURES COLDER THAN THE MDMT STAMPED ON THE NAMEPLATE

What reviewers have to say:

Keith has a long history in the industry. It’s invariably interesting

to hear his opinions and observations. It is always educational.

In this paper, Keith has tackled a tough subject. One that too many consultants simply say“write a check, replace it or repair it”. Keith outlines a much more fiscally responsible course of action. In addition to instructions, the white paper also contains a case study which walks you through the process. As noted, documentation is key. You must document your rationale. The presentation should be excellent. Thanks Keith!

Continuing Education Credit: 1 PDH

Author: Keith A. Tyson

P V’s (Pressure Vessels) can still be found that have an identification such as “-40 Recirculator” that also have a nameplate attached that reads “MDMT: -20°F @ 150 psi.” This means that the PV is operating outside its design and certification. This condition must be addressed. …. There is an alternative method that is in accordance with the ASME code andmuch

more cost effective. This paper will provide the background and documentationmethod needed to take advantage of thismethod. This previewwas compiled by Jon Schlegel in conjunction with the author, Keith A. Tyson, Guideline Training. We would appreciate your feedback after the presentation. Please be as detailed as possible in your comments.

From the Author:

Author: Don Tragethon, Western Precooling LET ME COUNT THE WAYS HOW DO I CAVITATE THEE? T his paper draws heavily from Industrial Refrigeration 2 without shame and When I read the author’s comments, my first thought was that“IR2 most likely draws heavily from Don”.

Continuing Education Credit: 1 PDH

service calls could have been avoided if the operators understood the“system” impacts of“component”changes. Many operators could have enjoyed a little more off time, if some design engineers understood this concept as well. Everyone who utilizes, services, or designs a systemwith refrigerant pumps will benefit from this presentation. Those with a sense of Refrigeration History will especially enjoy Don’s opening narrative. Many of the names Don mentions bring back fond memories to those of us who have been around awhile. This is an opportunity to hear a true industry legend present a great paper.

discusses three common causes for cavitation. IR2 presents twenty one problems that lead to cavitation or other separator vessel issues. Get your copy from RETA’s on-line book store for excellent instruction on these practical issues. This previewwas compiled by John Sherrill in conjunction with the author, Don Tragethon, Western Precooling. We would appreciate your feedback after the presentation. Please be as detailed as possible in your comments.

This is an excellent paper.“Mr. Tragethon outlines the three most common reasons for cavitation. Don’s style is deceptive. A very common sense discussion of pump cavitation becomes a detailed lesson including numbers and formulas. But the cool part is that you never notice. You leave the discussion with the feeling of having just gotten advice from an old friend. I especially enjoyed the discussion on setting metering valves. Many people forget the impact that multiple evaporators in different areas can have on the feed rate from a liquid pump. Many

From the Author:

What reviewers have to say:

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