This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Model Based Analysis of Compressor Valve Leakage and its Effects on the Efficiency of the Motor-Compressor
ISSN: 0148-7191, e-ISSN: 2688-3627
Published May 14, 2001 by SAE International in United States
Annotation ability available
In the development of algorithms to detect and diagnose component malfunctions impacting system performance and efficiency, engineers are often faced with the following questions: what is the relevant information required, what sensor or set of sensors is needed to provide this information, how should the information from the sensor signals be extracted, which sensor provides the earliest signal of system efficiency deterioration, and how do these signals change as the severity of the fault increases? A typical approach used to answer these questions is to experiment empirically with the actual system; however, this approach can be expensive and time consuming because it involves a variety of complex instrumentation and requires a fair amount of time to run the tests and analyze the data. An alternate approach, which is considerably less expensive is to use a model of the system and run computer simulations to get insight and understanding into its behavior. Once the computer model is constructed, simulations of the model can be readily obtained and system response to specific component failure studied.
In this paper we show how the key questions related to system performance can be answered through system modeling and simulation. The paper shows how a motor-compressor system can be modeled to yield insight and understanding into system behavior and the model is used to assess and compare the performance of three techniques to detect and diagnose incipient faults of the reciprocating compressor valves.
|Technical Paper||Nonlinear Modeling of an Electromagnetic Valve Actuator|
|Technical Paper||Modelling and simulation techniques for highly dynamic actuators in vehicles|
|Technical Paper||A Simulation Model for the CEEF Behavioral Prediction System|
CitationHernandez, C. and Adams, A., "Model Based Analysis of Compressor Valve Leakage and its Effects on the Efficiency of the Motor-Compressor," SAE Technical Paper 2001-01-1723, 2001, https://doi.org/10.4271/2001-01-1723.
- Hernandez C. Multisensor approach to the diagnostics of reciprocating compressors University of Arkansas Little Rock, AR April 1994
- Hernandez C. “Diagnostics of reciprocating compressor valves- comparison of different technologies through the simulation of the system and sensors” Proc. 1996 North American and European ASSURE Meetings April 10-12 1996
- Newland D. E Mechanical vibration analysis and computation Longman Scientific & Technical New York 1989
- Ewins D. J. Modal testing: Theory and Practice John Wiley & Sons New York 1989
- Adkins B. The general theory of electrical machines Wiley New York 1951
- McLaren J. F. T. Kerr J. V. “Valve behavior in a small refrigeration compressor using a digital computer” Journal of refrigeration 11 6 1968
- Padilla E. Computer simulation of a two-cylinder refrigeration compressor with special attention to the cylinder and cavity interactions Purdue University 1971
- Thompson W. T. Theory of vibration with applications Prentice Hall New Jersey 1988
- Dodge B. F. Chemical engineering thermodynamics McGraw-Hill New York 1944