Temperature distribution of a ventricular assist device activated by a brushless DC motor

A theoretical analysis of temperature distribution on an artificial ventricular assist device is performed using three-dimensional finite element modelling. The model consists of 6000 solid elements representing all the ventricle components. In order to find out the maximum Joule's losses allowed for the motor design, the simulation is able to propose the temperature distribution in each ventricular component. The model is based on thermal-electrical analogy, allowing an equivalent thermal conductivity for composite material. Two modes of heat transfer (conduction and convection) are used in this model. Results show the temperature distribution in each component and particularly on the bag housing. Maximum temperature should not be over 41°C which is possible with a limit of 4 W motor Joule's losses


Published in:
IMACS - TC1 '93. 4th International Conference Proceedings. Computational Aspects of Electromechanical Energy Converters and Drives, Copyright 1994, IEE, 71-76
Year:
1993
Publisher:
Ecole Polytech. Montreal
Keywords:
Note:
Lab. d'Electromecanique et de Machines Electr., Swiss Federal Inst. of Technol., Lausanne, Switzerland
4778051
ventricular assist device
brushless DC motor
temperature distribution
finite element modelling
3D
Joule's losses
design
simulation
thermal-electrical analogy
equivalent thermal conductivity
composite material
heat transfer
conduction
convection
bag housing
41 C
4 W
Laboratories:




 Record created 2006-06-15, last modified 2018-03-17


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