Real time neutron radiography and its' application to the study of internal combustion engines and fluid flow

1989 ◽  
Vol 22 (4) ◽  
pp. 247
Keyword(s):  
Fluid Flow ◽  
Real Time ◽  
Internal Combustion Engines ◽  
Neutron Radiography ◽  
Internal Combustion ◽  
Combustion Engines

scholarly journals Real Time Neutron Radiography Applications in Gas Turbine and Internal Combustion Engine Technology

1988 ◽  
Author(s):  
John T. Lindsay ◽  
C. W. Kauffman
Keyword(s):  
Real Time ◽  
Gas Turbine ◽  
Internal Combustion Engines ◽  
Combustion Engine ◽  
Neutron Radiography ◽  
Three Dimensional ◽  
Basic Research ◽  
Internal Combustion ◽  
Turbine Engines ◽  
Gas Turbine Engines

Real Time Neutron Radiography (RTNR) is rapidly becoming a valuable tool for nondestructive testing and basic research with a wide variety of applications in the field of engine technology. The Phoenix Memorial Laboratory (PML) at the University of Michigan has developed a RTNR facility and has been using this facility to study several phenomena that have direct application to internal combustion and gas turbine engines. These phenomena include; 1) the study of coking and debris deposition in several gas turbine nozzles (including the JT8D), 2) the study of lubrication problems in operating standard internal combustion engines and in operating automatic transmissions (1, 2, 3), 3) the location of lubrication blockage and subsequent imaging of the improvement obtained from design changes, 4) the imaging of sprays inside metallic structures in both a two-dimensional, standard radiographic manner (4, 5) and in a computer reconstructed, three-dimensional, tomographic manner (2, 3), and 5) the imaging of the fuel spray from an injector in a single cylinder diesel engine while the engine is operating. This paper will show via slides and real time video, the above applications of RTNR as well as other applications not directly related to gas turbine engines.

Real-time brake torque estimation for internal combustion engines

2008 ◽  
Vol 22 (2) ◽  
pp. 338-361 ◽  
Author(s):  
Javier Franco ◽  
Matthew A. Franchek ◽  
Karolos Grigoriadis
Keyword(s):  
Real Time ◽  
Internal Combustion Engines ◽  
Internal Combustion ◽  
Combustion Engines ◽  
Brake Torque ◽  
Torque Estimation

Research on Real-Time Fuel Consumption Measurement in Internal-Combustion Engines

2013 ◽  
Vol 760-762 ◽  
pp. 1159-1163
Author(s):  
Gang Li ◽  
Rui Feng Bai ◽  
Ying Hao ◽  
Yu Chen Li
Keyword(s):  
Real Time ◽  
Fuel Consumption ◽  
Flow Measurement ◽  
Internal Combustion Engines ◽  
Internal Combustion ◽  
Combustion Engines ◽  
Parameter Matching ◽  
A New Technique ◽  
Real Flow ◽  
Prototype Measurement

A new technique was devised to deal with real-time fuel consumption measurement in internal-combustion engines, where fuel circulation flow is much larger than the consumption rate. With extensive experiments and error analysis method, the fuel mass flow measurement had been realized by a improved turbine flow sensor with temperature compensation. The real-time accurate fuel consumption measurement had been achieved through data processing and real flow parameter matching method. The results showed that the prototype measurement precision was 1.0 class, satisfying practical measurement requirements.

A System Dynamics Modeling Methodology to Predict Transient Phenomena in Compressible Fluid Flow Systems

2011 ◽  
Author(s):  
Kenneth Follen ◽  
Stephanie Stockar ◽  
Marcello Canova ◽  
Yann Guezennec ◽  
Giorgio Rizzoni
Keyword(s):  
Fluid Flow ◽  
Numerical Methods ◽  
Compressible Fluid ◽  
Internal Combustion Engines ◽  
Internal Combustion ◽  
Compressible Fluids ◽  
Combustion Engines ◽  
Lumped Parameter ◽  
Lumped Parameter Models ◽  
Compressible Fluid Flow

The prediction of dynamic phenomena in compressible fluids, such as the air path systems of Internal Combustion Engines (ICEs) has seen an enormous growth in the past years. Striving to improve engine performance, fuel economy and emissions has led to the understanding that significant gains can only be achieved if improvements in engine design can be matched by the ability to closely control engine breathing and combustion performance. The current state of the art in the modeling of ICEs air path systems presents two main approaches, namely the high-fidelity, computationally intensive numerical methods and the low-fidelity, calibration intensive lumped-parameter models. This paper introduces a novel approach for modeling unsteady phenomena in compressible fluids that combines the advantages of numerical methods (high accuracy and low calibration effort) with the limited computation time of lumped-parameter models based on ordinary differential equations (ODEs). The approach is here presented for the one-dimensional nonlinear Euler equations for compressible fluid flow systems, which are particularly relevant for modeling the air path systems of internal combustion engines.

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