The article presents an approach for studying the hydraulic properties of the cooling and thermal stabilization systems of MPD sub-detectors. It combines together mathematical modeling with testing via experiments. The setup includes vacuum and circulation pumps, as well as pressure, flow, and temperature sensors.

The results of experiments demonstrate that a nominal coolant volume flow rate of 0.021 m³/h on a single ECal panel results in a hydrodynamic pressure drop of around 0.12 atm. Numerical computations and experimental measurements of pressure drop agree with a discrepancy of no more than 5%. It has been determined that the pressure change in the vacuum tank in the range of 0.9–0.4 atm does not cause the observable change in the flow-pressure characteristic of the ECal panel.

The proposed approach effectively addresses a variety of tasks related to the implementation of the cooling of MPD sub-detectors.