Session: CS-07-04 Recent Developments in ASME Codes and Standards-4

Paper Number: 123464

123464 - Design of Jacketed Pressure Vessels : Introduction to an Innovative Methodology Based on Formulae 

When pressure vessels are intended to perform heat transfers, and require temperature control, jacketed vessels can constitute an interesting technical solution. Quite common in the field of pharmaceutical industry and chemical engineering, it is composed of a main capacity (where an exothermic or endothermic chemical reaction can take place), with an external cavity, where a cooling or heating fluid is circulating.
Such equipments can theoretically be designed by analysis (DBA). However, it also cumulates difficulties : temperature variations and gradients (due to heat transfers), buckling (due to external pressure), and also fatigue (due to load cycles). Therefore, preparing a calculation note in order to justify the mechanical strength of such an equipment remains a challenge.
The French pressure vessels code, CODAP, led a set of studies, in order to provide innovative and simplified rules, based on formulae (DBF). Several types of jacket were considered, differing by their geometries. This paper describes the rules recently published in the chapter C12.2, dealing with U-shaped jacketed vessels. It provides its technical bases, its scope (in terms of geometry, material parameters, loads considered, failure modes covered, ...), and the design criteria. It finally details the developments and evolution to come in the next versions of CODAP.

Presenting Author: Philippe Rohart Cetim

Presenting Author Biography: Engineer specialised in mechanics since 2010.
PhD thesis defended in 2014, on the topic of the design of pressure vessels.
Experience in Cetim (French technical center in mechanics) and IS (French welding institute).
Currently involded in several codes ans standards working groups (CODAP, EN 13445-3, RCC-M, ASME BPVC VIII, API 579-1)

Authors:

Philippe Rohart Cetim