Effect of fill ratio on evaporator wall temperature in a loop thermosyphon used in electronic cooling applications

Abstract EN

This; paper; presents; the; effect; of; filling; ratio; on; thermal; performance; of; a; loop; thermosyphon.

The experimental setup consists of an evaporator, a condenser, a riser and a downcomer.

The dimensions of the loop thermosyphon under consideration were chosen so that they are mostly suitable for use in the cooling of electronic components.

Distilled water was used as a working fluid.

Experiments were carried out to estimate the performance of the loop thermosyphon for a range of input power from 10 to 100 W.

Four fill ratios were considered in the present work, namely; 15% , 25% , 50% and 85% .

Results showed that the maximum value of wall temperature in evaporator was 95°C, at 100 W input power and 15% fill ratio.

The fill ratio of 50% gave the minimum evaporator wall temperature which was 80°C.

Increasing fill ratio tends to decrease the evaporator wall temperature for This; paper; presents; the; effect; of; filling; ratio; on; thermal; performance; of; a; loop; thermosyphon.

The experimental setup consists of an evaporator, a condenser, a riser and a downcomer.

The dimensions of the loop thermosyphon under consideration were chosen so that they are mostly suitable for use in the cooling of electronic components.

Distilled water was used as a working fluid.

Experiments were carried out to estimate the performance of the loop thermosyphon for a range of input power from 10 to 100 W.

Four fill ratios were considered in the present work, namely; 15% , 25% , 50% and 85% .

Results showed that the maximum value of wall temperature in evaporator was 95°C, at 100 W input power and 15% fill ratio.

The fill ratio of 50% gave the minimum evaporator wall temperature which was 80°C.

Increasing fill ratio tends to decrease the evaporator wall temperature for evaporator.