2020 RETA Breeze Sept-Oct

2020 VIRTUAL CONFERENCE PREVIEW

What reviewers have to say: While not the main focus of the paper, Mark includes a great recap of the evolutionary changes in Ammonia Refrigeration. This is a great primer for less seasoned refrigeration engineers to see how our thoughts have changed. Mark identifies lowering of the refrigerant charge as an evolutionary change. The paper discussed why this change occurred. Including some great detail on the impact of this evolutionary step. There is also a discussion of our “more mature view of Safety”. Practices which were considered standard for many, many, years are now considered dangerous. A recent discussion of RETA Industrial Refrigeration 1, centered around manual purging. Manual purging was once considered a common practice. Now it is considered a necessary evil, to be avoided if possible. Mark cites several very good examples. Marks’discussion of evolutionary change #3,“the expanding world of Natural Refrigerants”starts off with one of my favoriteWinston Churchill quotes“You can always count on Americans to do the right thing – after they’ve tried everything else”. Mark discusses failures of other refrigerants. This includes some very good examples. Though he did not include Methyl Chloride, probably because it was discontinued long before he was born. LOL But the main topic of the course is vessel design. This is a good whitepaper and I believe it will be an even better presentation.

Continuing Education Credit: 1 PDH REFRIGERATION PRESSURE VESSELS: DESIGN CONSIDERATIONS FOR AN EVOLVING INDUSTRY

Author: Mark Stencel

T oday, at an accelerated rate, we are witnessing multiple evolutionary changes in the refrigeration industry. One could write volumes about these if one were to consider all the impacts these changes have on all the components of a refrigeration system. The intent of this paper is to invite the reader to consider the impact that some of these changes have on a simple and static part of the refrigeration system, the refrigeration vessel. By this consideration, designers and operators of refrigeration systems are challenged anew to reflect on the interconnectivity of all we do. Further,

they are urged to be alert to the broad impact (i.e. design parameters, safety, and efficiency) of any change and as they occur, to apply a careful review to all the interconnecting affected segments of a refrigeration system. By doing so, they will improve the safety and efficiency of systems throughout the next waves of natural refrigeration system development. This previewwas compiled by Vern Sanderson in conjunction with the author, Mark Stencel, Bassett Mechanical. We would

From the Author:

appreciate your feedback after the presentation. Please be as detailed as possible in your comments.

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