I D
× COMMENTARYEDITOR'S PAGECOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical EngineeringModular NGL recovery
Honeywell UOP (Des Plaines, Ill.; www.uop.com) has adapted its recycle-split-vapor…
Chemical EngineeringChementator Briefs
Self-healing adhesives Researchers at Oak Ridge National Laboratory (Oak Ridge,…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEEQUIPMENT & SERVICESFOCUS
Focus on Sensors
Oxygen measurement with Ex approvals & SIL2 certification The new…
NEW PRODUCTS + Show More

Comment PDF Business & Economics

Designing Shell & Tube Heat Exchangers: Avoid Vibration From The Start

By Graham T. Polley and M.A.Vidal Farfan, University of Guanajuato, Mexico; Simon J. Pugh, IHS ESDU |

Mechanical integrity is an essential consideration in heat exchanger design. The most common threat to this integrity is tube bundle vibration. So, the computer programs used for heat exchanger design incorporate procedures that assess this threat. However, such analysis is generally undertaken after exchanger geometry has been identified. The result can be that geometry that is optimal in terms of thermal performance is rejected for a more expensive alternative. This added expense is often unnecessary. This article shows that identification of geometry that avoids dangerous vibration can be undertaken as an integral part of the design process and provides insight on doing so. (Part 2 of this report, pp. 35–38 addresses the challenges of two-phase flow) Modern computer programs allow the engineer to explore a very wide range of bundle geometry. Baffle cut can be set anywhere within the range 15 to 45% and baffle spacing up to a maximum allowable span set by manufacturer’s standards. Beware, however, that the fact that a computer program provides a prediction of performance (sometimes of questionable validity) for a poor geometry does not justify the engineer in accepting the result. The best heat transfer is obtained for…
Related Content
The New Face of Heat Exchangers
When it comes to heat exchangers, chemical processors have a lot to consider. The most common concerns include fouling, heat-transfer…

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
Steel Belt Units for Medical Membranes
Upstream Oil & Gas: Automation intelligence from wellhead to distribution
Video - CoriolisMaster
Video - Do you really need a thermowell?
The influence of IIoT in the dewatering process step of pigment production

View More