Heat Exchanger Total Effective Tube Area

Download Acrobat (PDF) Specification Sheet CMS_Design_Selection.pdf (601kb)

Heat Exchanger Designs & Selections • Differential Thermal Expansion • Pass Arrangements for Flow Through Tubes
Shell Side Fluid Flow • Impingement Plates (based on application) • Maintenance and Servicing Considerations
Principal Components • Heat Exchanger Tubes • Materials of Construction • Economic Considerations in Heat Exchanger Selection
Heat Exchanger Rating versus Expected Loads • Fundamental Heat Transfer • Load is the Measure of Heat Transferred
A Combination of Three Factors Governs Load Capacity • Heat Transfer Coefficient (U) Depends on Many Variables
Area is the Total Effective Tube Area

Area is the Total Effective Tube Area

The end result of choosing the most advantageous combination of all factors is the most economical value for A, the effective tube surface area. This area gives an answer to the question: “How big a unit must we provide in order to meet our requirement?”

The effective tube area is that portion within the shell exposed to the shell side fluid.

It is common practice to figure the area in square feet using the outside diameter of the tubing instead of an inside or mean diameter. This is merely for convenience, because the area per foot of a given O.D. tube is the same for all wall thickness.

CMS Heat Transfer Division, Inc.

273 Knickerbocker Avenue ï¿½ Bohemia, NY 11716 USA

Tel: 631-968-0084 ï¿½ Fax: 631-968-0184 ï¿½ Email: info@cmsheattransfer.com

CMS Heat Transfer products include shell and tube heat exchangers, fixed tubesheet and u-tube exchangers, oil coolers, pre-heaters, condensers, after-coolers, steam converters, kettles, reboilers and evaporators. CMS engineering include custom heat exchanger, process and mechanical design services to all TEMA and ASME conformance requirements.

IMPORTANT DISCLAIMER: All information on this site is provided for reference. While we make effort to provide accurate information, CMS cannot be held responsible for errors either of omission or typographical.

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