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Kaji eksperimental dan numerik karakteristik penukar kalor kompak dengan campuran air-es (ice slurry) sebagai fluida pendingin.

Master Theses from JBPTUNIKOMPP / 2012-06-30 07:36:32
By : Suryadimal, S2-Machine Engineering
Created : 1999-00, with files

Keyword : Heat transfer

The combination of heat transfer between solid (ice) and fluid with consentration ice can increases performance of heat exchanger. At this research will investigate adding of ice in fluid freezer to heat transfer parameter in compact exchanger. From the result of research show that heat transfer with phase change at cold fluid can increase heat transfer from hot fluid. This phenomena is caused that laten heat of ice made a little change of the temperature fluid freezer as long as the time, therefore rate of heat transfer side hot fluid increases too. So the difference of temperature between side cold fluid and hot fluid made become higher. From analysis doing for some mass flow rate of fluid freezer, the difference of ice slurry with cold water in temperature 0 degree C is about 15-30 % of energy which can be given by ice. And heat transfer increases 45-72 % if it compared with water which has temperature near by the outlet temperature of chiller system.

The research is also done in a theoretical calculation by mathematic modeling and numerical method, which can be repeated for different input data quickly. And program designed is good enough to be used in analyzing a compact heat exchanger.

Description Alternative :

The combination of heat transfer between solid (ice) and fluid with consentration ice can increases performance of heat exchanger. At this research will investigate adding of ice in fluid freezer to heat transfer parameter in compact exchanger. From the result of research show that heat transfer with phase change at cold fluid can increase heat transfer from hot fluid. This phenomena is caused that laten heat of ice made a little change of the temperature fluid freezer as long as the time, therefore rate of heat transfer side hot fluid increases too. So the difference of temperature between side cold fluid and hot fluid made become higher. From analysis doing for some mass flow rate of fluid freezer, the difference of ice slurry with cold water in temperature 0 degree C is about 15-30 % of energy which can be given by ice. And heat transfer increases 45-72 % if it compared with water which has temperature near by the outlet temperature of chiller system.

The research is also done in a theoretical calculation by mathematic modeling and numerical method, which can be repeated for different input data quickly. And program designed is good enough to be used in analyzing a compact heat exchanger.


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