<i>Mechanical Design of Heat Exchangers and Pressure Vessel Components</i>

Abstract

This is a "whopper" of a book.Starting from the basics, it progresses along until it reaches the more complex aspects of heat exchanger design.Along the way it encounters and covers a great deal of material.Until the present, there has not been a book which covers this vast ground.As stated by the author, "Profound changes have occurred in recent years in heat exchanger design practice .... Seismic analysis was an alien term to the heat exchanger trade.Words like 'response spectrum,' 'flow induced vibration,' 'nozzle load induced stresses,' had little kinship to heat exchanger design technology ....A thorough grasp of the underlying concepts in flow induced vibration and seismic analysis along with pressure vessel mechanical design and stress analyses techniques, is essential for developing cost effectiveness and reliable design .... Our objective is to present that necessary for heat exchanger design and operating-problems-resolution in a logical and systematic manner."The authors accomplish their task and goal by bridging the gap between analytical methods and practical considerations.The book contains 22 chapters and 27 computer codes.Five of the latter contain no listings but the remainder do.An appendix analyzes and presents the classical plate and shell theory and its applications to pressure vessels.Chapter 1 presents an elaborate introduction to tubular heat exchangers.It includes the various styles (fixed tube sheet, Utube, floating tube sheet, etc.), heat exchanger nomenclature, tube layout, pitch and heat"Exchanger intervals.The next topics are methods of impingement protection: circular and square plates and four methods of designing for thermal transients.The chapter concludes with a brief resume of the codes and standards used in heat exchanger design and manufacture (TEMA, Heat Exchanger Institute and ASME Boiler and Pressure Vessel Codes).Chapter 2 reports on the various stress categories.This covers beam strip analogy, primary and secondary stresses and classifications (primary and local membrane stress, primary and secondary bending stress, etc.).The authors provide an example of gross structural discontinuity.This considers welded cylinders having unequal thickness.The chapter concludes with an interesting discussion of discontinuity stresses at head, shell and skirt junction.Chapter 3 takes us to the area of bolted flange design.This embraces the various constituents, which are: (a) bolted flange type, (b) four types of flange facings, (c) four types of flange facing finishes, (rf) five types of gaskets which are used in flange design.The important Waters, Rossheim and Williams methods are detailed in depth.They are used in the design of the flange ring, tapered hub, shell elements, longitudinal stresses in hub and shell, radial and tangential stresses in a ring.The chapter concludes with a detailed listing of computer program FLANGE and the stress analysis of a welding neck flange.