French CODAP rules devoted to tubesheet heat exchangers were adopted in the 1990s, for the European Unfired Pressure Vessel Standard (UPV). ASME Section VIII—Div. 1 rules issued in July 1998 are based on a similar approach. At the initiative of the author, who is a member of CODAP, UPV, and ASME respective Committees on Heat Exchangers, it has been decided to make the tubesheet design rules of these three codes as consistent as possible. This paper presents the various aspects of this harmonization that covers both the theoretical basis of the rules and the editorial aspect (use of common notations, common tubesheet configurations, common terminology, etc). The main analytical basis of these rules, and their differences are explained. Numerical benchmark calculations, performed on real heat exchangers, outline the significant improvements due to the consistency, with a comparison to current TEMA rules. Use of these common rules in the coming years, both in US and Europe, is discussed in the general context of globalization of the market. [S0094-9930(00)01003-9]

Osweiller, F., 1991, “New Design Rules for Fixed Tubesheet Heat Exchangers: A Comparison of CODAP and ASME approaches,” Proc., ASME PVP Conference, 110–2 (H00637).
Soler, A. I., and Caldwell, S., 1990, “A Proposed ASME Section VIII, Division 1, Tubesheet Design Procedure,” Proc., ASME PVP Conference, Nashville, TN, Vol. 186 (HOO605).
, “
Evolution and Synthesis of the Effective Elastic Constants Concept for the Design of Tubesheets
ASME J. Pressure Vessel Technol.
, August, pp.
Osweiller, F., 1996, “U-Tube Heat Exchangers: A Comparison of Code Design Rules,” Proc., ASME 8th ICPVT Conference, Montreal, Canada, July 2 (H10708).
Gardner, K., (1969), “Tubesheet Design: A Basis for Standardization,” Delft Conference, pp. 621–648.
Osweiller, F., 1986, “Analysis of TEMA Tubesheet Design Rules—Comparison With Up-to Date Code Methods,” Proc., ASME PVP Conference, 107 (G00358).
ASME, 1998, Section VIII, Division 1, Appendix AA, July 1.
CODAP 95, 1999, Code franc¸ais de Construction des Appareils a˙ Pression, Section C7, revised on Jan. 1.
TEMA Standards, 1998, Tubular Exchangers Manufacturers Association, 7th edition.
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