www.pdfstall.online: Gas Turbine: A Handbook of Air, Land and Sea Applications (2nd Edition)

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The current models of aviation engines on transpacific flights develop about 90,000 pounds of thrust, power generation gas turbines have broken the 450 megawatt gas turbine barrier, and gas turbines are now being used on cruise ships. Gas turbines have come a long way since my first meeting with them. At that point over thirty years ago, we waited a day for the casing on an old 20 kilowatt Brown Boveri to cool sufficiently for us to be lowered by rope harness into the intake for an inspection.

Most end users do not part easily with their old work horses, so many of them are still around. The Rolls Royce Avon fleet on the Alaska pipeline, the huge number of globally installed General Electric Frame 5s (the original version, not the newly introduced model), the myriad of Solar Centaurs and Saturns everywhere in the world that needed “just about 3,000 or 1,000 horses” for a pipeline or oil and gas application, the many models of Pratt and Whitney’s JT8D that still make up one of the world’s largest commercial aircraft engine fleet. They work reliably, if inefficiently by today’s standards, surrounded by a work force that can often hear the slightest whimper of distress from their machine—often because they rarely hear one. To some extent, these turbines owe their longevity to the continual design development in the form of service bulletins, decreed “mandatory” or “optional” by their manufacturers. I use quotation marks, as sometimes there are manufacturers who have used the “mandatory” label as a means of upgrading end-user fleets for their own revenue extension. Rather than actual end-user power requirements, the OEM’s motivation was to lower the number of configurations that required a stock of spares, and other profit-motivated objectives. And then other times, as with the JT8D, the bulletins developed took a generic 9,000 pound thrust engine, born in the 1950s to just under 20,000 pounds thrust by the 1980s with one of the most enviable safety records for a gas turbine fleet. Many land based gas turbines, like the old GE Frame 5 have a proven record of specific steam injection designs raising their power output by 20 to 25%.

Content:-

Preface

Introduction

Acronyms

Notes to the Reader

About the Author

1. Gas Turbines: An Introduction and Applications

2. Historical Development of the Gas Turbine

3. Gas Turbine Configurations and Heat Cycles

4. Gas Turbine Major Components and Modules

5. Cooling and Load Bearing Systems

6. Inlets, Exhausts, and Noise Suppression