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Compressors Selection and Sizing 3rd Edition by Royce N. Brown, P. E. | PDF Free Download.
Royce N. Brown is the owner of RNB Engineering in Houston, Texas, where he provides turbomachinery consulting services on a global basis to the process industries in which he has more than 50 years of experience.
Mr. Brown is retired from Dow Chemical and worked for the Compressor Department of Allis-Chalmers before his 29 years with Dow. Mr. Brown holds a B.S. in Mechanical Engineering from the University of Texas and an M.S. in Mechanical Engineering from the University of Wisconsin.
He has written more than 30 technical papers, including a contribution to the ASM Handbook, Volume 18, Friction, Lubrication, and Wear Technology in 1992.
He is a fellow of both ISA and ASME, is active in the American Petroleum Institute’s Subcommittee on Mechanical Equipment where he is also a member of the Steering Committee and is the Task Force Chair of API Standard 617 on centrifugal and axial compressors,
API Standard 616 Gas Turbines, and API RP 684 on rotor dynamics and balance. Mr. Brown is a registered Professional Engineer in several states.
In the previous edition of this book, mention was made of the changes taking place at that time in the compressor-manufacturing world.
Compressor manufactures were changing owners. In some instances, employees or ex-employees were using leveraged buyouts (LBO) to acquire the company. There were a limited number of mergers of what had been the traditional companies.
I would never have imagined the changes that have taken place since that time. In the past several years, there has been an explosion of mergers, even mergers of previously merged companies. A look at the credits in the body of the book will show this trend.
Many company names are no longer in existence because these firms were bought out and merged into the purchasing company’s existing organization and name.
Others have attempted to keep the legacy companies in the name, which makes the new name read like a law firm. This combining and merging have some benefits for the shareholders because the duplication of resources is minimized.
On directly competing products, the efforts can be combined to market only the most competitive product and drop any others from the market place. The impact of all this on the compressor user has yet to play out.
The purpose of generating the third edition of the book has very little to do with the mergers just discussed.
However, due to significant improvements in computer technology, tools that were available but lacked the necessary computer power to properly implement have now been put into practice. Also, Codes and Standards have been upgraded. It is the purpose of the third edition to bring the impact of these items to the reader.
Chapter 2 introduces the use of a process simulator to aid in the development of process constants for use in compressor real gas calculations.
The diaphragm compressor has been added to Chapter 3, ‘‘Reciprocating Compressors.’’ The chapter now maintains coverage of piston type reciprocating compressors and adds the diaphragm-type reciprocating compressors.
Applications and mechanical aspects are included. As I have attempted with the other types of compressors covered in the book, the sizing and selection criteria for this compressor have been emphasized.
Two sizing examples are included, and the mechanical aspects of this compressor type have also been covered. Since the time of the second edition, many of the Codes and Standards have been revised. The impact of some of the more significant changes is covered.
The scope of API 617 was modified to include not only beam-type centrifugals, but also axial compressors, integrally gear mounted centrifugal for process service, and expander-compressors. A discussion of the changes to API 617 has been added to Chapter 5.
Modifications to API 672 are also discussed in Chapter 5. The reciprocating piston compressor instrumentation was updated to current practice in Chapter 8 API 617 introduced the subject of rotor stability into the specifications, a first for API.
The recommended practice API 684 provides a very complete treatise on rotor dynamics. Rotor stability is included in this work. Chapter 9 has included an introduction to the subject of rotor stability as presented in API 684.
The ASME Power Test Code for centrifugal and axial compressors was updated after 30 years. Some of the key changes are discussed in Chapter 10.
The ASME Power Test Code for displacement compressors has been withdrawn.
The replacement is covered in Chapter 10. Technology has moved ahead, aided by increases in power and the lowered cost of desktop computers some examples are discussed under reliability contributed by engineering in Chapter 12.
One final item, the figures were carefully reviewed and where it was practical, either replaced in kind or a new figure was used.
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