)—to scale prototypes up or down. This concept allows engineers to predict the performance of a massive hydraulic turbine using data collected from a small, budget-friendly laboratory model. 2. The Euler Turbomachine Equation
The second edition covers all the major topics of the first edition but also includes new chapters and expanded coverage of emerging technologies. The table of contents for the second edition reflects this expanded scope:
: Combining elements of both axial and radial flow for intermediate head and flow requirements. Energy Direction
Crucial in aerospace and power generation, compressors (both axial and centrifugal) raise the pressure of a gas. Peng details how stages are designed to avoid phenomena like "surge" and "stall," which can severely damage equipment. Fundamentals Of Turbomachinery By William W Peng
Professor Peng's book stands out in the crowded field of engineering textbooks for several key reasons:
. He categorizes these losses, teaching the reader that engineering is often the art of minimizing inevitable inefficiencies. His discussion on cavitation in pumps serves as a crucial warning on the physical limits of materials and pressure. Conclusion William W. Peng’s Fundamentals of Turbomachinery
It covers both power-absorbing machines (pumps, compressors, fans) and power-producing machines (hydraulic, steam, and gas turbines). Key Concepts Covered in the Book )—to scale prototypes up or down
Peng’s industrial experience shines here. He doesn’t just define cavitation; he describes the sound (like “gravel passing through the pump”), the physical damage (pitting on impeller surfaces), and the operational fix (either lower the pump or increase inlet pressure). His NPSH chapter includes real pump curves from manufacturers, teaching students how engineers actually select pumps for a cooling tower or water supply system.
Turbomachinery plays a vital role in modern society, enabling the efficient generation of power, propulsion of aircraft and ships, and circulation of fluids in industrial and HVAC systems. The development of more efficient and reliable turbomachinery has significant implications for energy production, consumption, and sustainability.
The book is structured into 11 main chapters, progressing from basic energy transfer principles to detailed analyses of specific machines like pumps, compressors, and various types of turbines. Internet Archive Chapter Overview 1-3 (Fundamentals): The Euler Turbomachine Equation The second edition covers
In 1981, Peng began his academic career at Texas A&M University , later moving to California State University, Fresno , in 1984. It was here, while teaching senior and graduate-level classes on gas turbines and turbomachinery, that he saw the need for a text that could clearly explain complex concepts to students.
“If you throttled the gate too far closed, Leo, you moved left on the curve. Flow dropped, but the specific speed (( N_s = N \sqrtQ / H^3/4 ))—Peng’s master index—stayed constant. Your machine is still geometrically similar to its design, but hydraulically mismatched.”