Browsing by Author "White, Robert C."
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Item Compressor 201(Texas A&M University. Turbomachinery Laboratories, 2014) Sorokes, Jim; Hardin, James; Moore, J. Jeffrey; Colby, Gary; White, Robert C.; Turbomachinery Symposium (43rd : 2014)This course supplements the Centrifugal Compressor 101 course by covering in greater detail four key areas related to compressors: aerodynamics, rotordynamics, performance and mechanical testing, and surge control. It is intended for those who attended the 101 course and wish to learn more about these topics. The course is also structured for those practicing rotating machinery engineers who have a basic understanding of the topics covered in CC101 but wish to further their understanding in these key areas.Item Conttol Systems. Surge Control and Dynamic Behavior for Centrifugal Gas Compressors(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016) Kurz, Rainer; White, Robert C.; Winkelmann, Bernhard; Brun, KlausTutorial 10C: This tutorial discusses the design and function of surge control systems, or more precisely, surge avoidance systems on the basis of the behavior of centrifugal compressors when they interact with compression systems. Therefore, the control system, as well as the phenomenon of surge and stall is discussed. The paper emphasizes the interrelation between the process system and the compressor. Regarding the compressor, different methods of controlling the compressor are discussed, together with different operating regions like stall and choke. The differences between stall and surge are explained. Additionally, the impact of the process and how the process dynamics interact with the compressor is analyzed, categorized, and explained. Based on the above, process control and in particular, surge control systems are discussed. Critical features of surge control systems are explained, and options for different arrangements are given.Item Discussion Group T18: Compressor Controls(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2015) Judd, Steve; Sandberg, Mark; Craggs, Keith; Borchard, Henry; McWhirter, Jeff; White, Robert C.; Turbomachinery Symposium (44th : 2015)Item Discussion Group T19: Compressor Controls(Texas A&M University. Turbomachinery Laboratories, 2014) Judd, Steven; Sandberg, Mark; Craggs, Keith; Borchard, Henry; McWhirter, Jeff; White, Robert C.; Turbomachinery Symposium (43rd : 2014)Item Short Course T4: Centrifugal Compressors 201(Texas A&M University. Turbomachinery Laboratories, 2012) Hohlweg, Bill; Hardin, James; Moore, J. Jeffrey; Colby, Gary; White, Robert C.; Turbomachinery Symposium (41st : 2012)Item Short Course T4: Centrifugal Compressors 201(Texas A&M University. Turbomachinery Laboratories, 2013) Sorokes, Jim; Hardin, James; Moore, J. Jeffrey; Colby, Gary; White, Robert C.; Turbomachinery Symposium (42nd : 2013)Item Short Course T5 On Surge and Surge Control Systems(Texas A&M University. Turbomachinery Laboratories, 2011) Brun, Klaus; DeVito, Kenneth; Moore, J. Jeffrey; Nored, Marybeth; White, Robert C.; Turbomachinery Symposium (40th : 2011)Item Short Course T6: Surge and Surge Control Systems(Texas A&M University. Turbomachinery Laboratories, 2012) White, Robert C.; DeVito, Kenneth; Junk, Ken; Moore, J. Jeffrey; Wilcox, Melissa; Turbomachinery Symposium (41st : 2012)Item Surge Avoidance For Compressor Systems.(Texas A&M University. Turbomachinery Laboratories, 2006) White, Robert C.; Kurz, Rainer; Turbomachinery Symposium (35th : 2006)This tutorial explains the surge phenomenon as well as the precursors of surge and the damage that surge can cause to the equipment. Then, methods to keep the compressor system from surge, i.e., modern surge control systems, are discussed. This includes the necessary instruments, algorithms used, as well as the piping layout required. Sizing considerations for valves and other system components, in particular methods to correctly estimate allowable upstream pipe volumes, are described. Surge control systems for single body and multibody or multisection compressors will be explained and attention will be given to the integration of the surge control system with other aspects of the station and unit control. In a look forward, new methods for surge detection and detection of system changes prior to surge are covered.