The optimum filling ratio of water for a micro thermosyphon boiler
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Abstract
The optimum filling ratio of the working fluid is an important parameter for the heat transfer performance of hermosyphon, especially the new type of equipment. This experimental aim to study the filling ratio of water as a working fluid of a heat exchanger with a closed-boiler system using the principles of thermosyphon. The boiler as an evaporator with a volume of approximately 95% of the system. Experiment with constant heat flux of 50, 75 and 100 kW/m2. The filling ratio of water is in the range of 5-12% of the system volume. Condenser cooling with constant inlet temperature and mass flow rate of cold water. The results showed that the filling ratio of water as a working fluid of 7% is suitable for a micro thermosyphon boiler. Total thermal resistance was lowest when the heat flux is 100 kW/m2 of 0.062 ◦C/W while still tending to decrease as the heat flux increases.
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References
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