Seminar 67--Innovative Technologies and Design for Shell and Tube Heat Exchangers ✓ Most Recent

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Conference Proceeding by ASHRAE , 2020

Andreas Knoepfler, Cameron Nelson, Adnan Ayub

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This product is a zip file that contains files that consist of PowerPoint slides synchronized with the audio-recording of the speaker, PDF files of the slides, and audio only (mp3 format) as noted.
 
Energy efficiency of refrigerating and air-conditioning systems has gained substantial attention over the past decades. This seminar discusses some of the contributions of heat exchanger technology in the continuous improvement of HVAC&R equipment heat transfer efficiency. This session reviews the impacts of historical advancements and recent innovations in tube enhancements for shell-and-tube heat exchangers. Next, the results of a study comparing calculated tube performance using the conventional LMTD method and a recommended new approach-the axial resistance-varying method are presented. Finally, the mechanism and efficiency gain of ammonia boiling in a vertical tube bundle is discussed.
 
1. Advances in Heat Transfer Using Enhanced Chiller Tubes
Andreas Knoepfler, Associate Member, Wieland-Werke AG, Ulm, Germany
2. An Axial Resistance-Varying Method for Improved Quantification of Enhanced Surface Condenser Tube Performance
Cameron Nelson, Associate Member, Johnson Controls Inc, New Freedom, PA
3. Boiling of Ammonia in a Vertical Enhanced Tube Bundle Under Annular Flow
Adnan Ayub, P.E., Member, Isotherm, Inc., Arlington, TX See more

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Published:

2020

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1 file

Product Code(s):

D-OR20Sem67

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This product is restricted and cannot be purchased in the following countries Russia, Belarus