Gas-Turbine Regenerators - Hardcover

Beck, Douglas; Wilson, David G.

Hardcover

ISBN 10: 0412983311 ISBN 13: 9780412983313

Publisher: Springer, 1996

Synopsis

Regenerative gas turbines are attractive alternatives to diesel engines and spark­ ignition engines for automobiles and to diesel engines and combined-cycle en­ gines for power generation. Theory indicates regenerative gas turbines should achieve higher thermal efficiencies than those of diesel engines and combined­ cycle engines. Further, regenerative gas turbines are potentially lower in cost, require less maintenance, require less space, and pollute less than competitive systems. Regenerators can be used for exhaust-gas heat exchange or for intercooling in gas-turbine systems. As an exhaust-gas heat exchanger, a regenerator recovers heat from the exhaust and uses it to preheat the compressed air before the compressed air enters the combustor. Preheating of the compressed air permits a small heat input to the combustor for a given power output of the engine. As an intercooler, a regenerator cools the gas between compressor stages. Less work is required to compress cool gas than is required to compress warm gas. Therefore, a regenerator intercooler can reduce the required work input to the compressor. Thus, regenerators can be used to increase the thermal efficiencies and power outputs of gas turbines. the backbones of high-performance re­ High-performance regenerators are generative gas turbines. In the past, lack of understanding of regenerator per­ formance has led to sub-optimal engine designs. Now this book gives com­ prehensive regenerator information. With this book, the designer can design regenerators that will yield gas turbines with maximum thermal efficiencies.

About this title

From the Back Cover:

Gas-Turbine Regenerators begins with a thorough introduction to regenerators, familiarizing the reader with the terminology used in regenerator analysis and design. The book then describes the historical background of regenerator analysis and design and their development through the years. Following the historical background, this book explores gas-turbine cycles, the thermodynamic cycle by which gas turbines convert heat into work. The book then presents three design models: Direct Regenerator Design; Optimal Regenerator Design, and the design methods of Kays and London. The text concludes with three significant kinds of regenerator performance: heat transfer; leakage, and pressure drops. Regenerative gas turbines have the potential to be more efficient and lower in cost than competing diesel and combined cycle engines. In addition, regenerative gas turbines require less maintenance, require less space, and pollute less than competitive systems. This text provides engineers and designers with the tools needed to achieve these qualities in four distinct ways: First, in the preliminary stages, designers can choose from one or more designs that may be suitable for their application. Second, the designer who has some design specifications can use the optimization method to choose the remaining specifications in order to provide maximum thermal efficiency. Third, this book can be used by the manufacturer of regenerator cores in selecting core-passage geometrics and core materials. Finally, inexperienced designers can use the step-by-step examples of designs of regenerative gas turbines.

About the Author:

Douglas Stephen Beck is an Engineering Consultant, Wellesley, Massachusetts.

About this edition

• Publisher: Springer
• Publication date: 1996
• ISBN 10: 0412983311
• ISBN 13: 9780412983313
• Binding: Hardcover
• Number of pages: 276