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2024

Experimental investigation of the effect of the vibration on the operation of the direct contact condensation “box” component of a Capillary Jet Loop

ABSTRACT

In this experimental study the “-dcc box” component of a Capillary Jet Loop architecture (CJL-dcc) is submitted to vibration on a shaker first in the z-axis direction i.e. the direction of the “-dcc tube” and second in the transverse x-axis direction. The two-phase ring (TPR) provides the liquid to the capillary structure and the capillary evaporator induces vapor jets thanks to four injector elements in parallel. The momentum exchange between the high velocity acetone vapor flows and the low velocity of the subcooled liquid ensures both transport and condensation functions before the connecting lines. This paper discusses the design, material and experimental performances of this specific demonstrator able to transfer 1.57 kW from a 90 x 90 mm² footprint heater. The two type of vibrations cycles are investigated: random and sine sweep. Based on the thermal reaction of the CJL during the sine sweeps, several spot frequencies are selected on both z-axis and x-axis to perform spot frequency vibration during a period long enough to reach the system thermal steady state.

AUTHORS

V. Dupont, C. Popper, M. Bertha, S. Hoffait and A. de Ryckel

CONFERENCE
PAPER

Joint 22nd IHPC and 16th IHPS

Joint 22nd IHPC and 16th IHPS

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