Abstract
The paper focuses on the modeling of heat transfer in pneumatic systems. The main aim of this work is to represent these phenomena during the charge or the discharge of a tank for complex circuit simulation or for the identification of instantaneous mass flow rate.
In the first part, a macroscopic model will be proposed. It is based on the dimensional analysis theory. This approach enables the main heat transfer mechanisms to be identified according to flow conditions, pressure levels and tank shape. A relation between the corresponding dimensionless groups is then used to develop a general model for computing the heat exchange coefficient according to the system state and geometry. The identification procedure is presented and the first simulation results show good agreement between experimentation and theory.
