Session: 01-04: System Modelling and Fault Diagnosis

Paper Number: 140068

140068 - An Improved Thermal Modelling Approach for Industrial Hydraulic System Applications, Prioritizing Computational Time Reduction and Thermal Condition Analysis 

Abstract: 

Abstract

Efficiently modelling and analysis the thermal behaviour of industrial hydraulic systems poses a significant challenge due to their intricate nature and the multitude of components. In addition, existing thermal models rely on cross-coupled parameters, temperature, pressure, flow rate, etc. and numerous measurement sensors, resulting in prolonged modelling times that far exceed the actual operational duration of the system being modelled, often by a factor of 2 to 7 times for a step time 10^-4 second and more. To address this issue and align with industrial requirements, an improved lumped parameter model is presented based on a new set of assumptions relying mainly on:

1-      Average hydraulic oil temperature of the hydraulic system .

2-      Simplifying determining the specific enthalpy based on temperature parameterless calculations.

3-      De-coupling the cross coupled parameters by propose an integration method.

 

Consequently, the followings outline the research objectives of this study:

1-      Expediting simulation times for thermal transient condition of the hydraulic system while preserving a reasonable level of accuracy.

2-      Thermal behaviour analysis with a direct method to determine the health state of the industrial hydraulic system in case of overheating or not.

 

Finally, in order to validate the effectiveness of our proposed thermal model, we will conduct a case study involving an industrial hydraulic system for thermal behaviour analysis and model verification purposes.

Presenting Author: Ahmad Al-Issa Chair of Fluid-Mechatronic Systems (Fluidtronics) / Technical University of Dresden

Presenting Author Biography: Ahmad Al-Issa received the B.Sc. and M.Sc. degrees in mechanical engineering from AL-Mustansiriya University, Baghdad, Iraq in 2009 and 2012, respectively. This was followed by approximately 2 years as a university lecturer and then a 6-year industrial phase as hydraulic engineer. Currently, he is a research assistant and pursuing his PhD degree at Chair of Fluid-Mechatronic Systems (Fluidtronics), TU Dresden, Germany. His research interests are in thermal modeling and simulation of mobile and stationary hydraulic power systems.

Authors:

Ahmad Al-Issa Chair of Fluid-Mechatronic Systems (Fluidtronics) / Technical University of Dresden
Tobias Schulze Chair of Fluid-Mechatronic Systems (Fluidtronics) / Technical University of Dresden
Jürgen Weber Chair of Fluid-Mechatronic Systems (Fluidtronics) / Technical University of Dresden