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English Loop thermosyphon is composed with : evaporator, vapor tube(s), condenser and liquid return tube, Advantages of loop thermosyphon technology is the long distance and high power heat transfer capability. Loop thermosyphon handles two or more heat sources in one loop. Cooling House’s Loop thermosyphon works on the basis of thermodynamic principles. It is a closed-loop, phase change heat transfer product that can move several hundred to thousand Watts up to meters away from the heat source (evaporator chamber). Within the chamber, working fluid boils and generates a pressure difference, which forces the working fluid and heat through the vapor line to a high efficient condenser, gas is then condensed and returned to the evaporator chamber as a completed cycle, as shown below.
The entire system may be configured into different form factor required by the designer, and uses minimal internal space due to the extremely high efficient 2 phase-flow heat transfer. In general 2 phase flow devices’ equivalent bulk thermal conductivity is 8,000~35,000, heat pipe and vapor chamber may handle 30~80W/ cm², our loop thermosyphon can handle more than 100 W/cm² without dry-out phenomenon. The system is sealed, reliable, and predictable in its behavior, it functions with gravity, with customized design our solution can function in multi-orientations.
Our loop thermosyphons are produced by long-term partners in the automotive industry. The manufacturing processes are well-suited for higher volumes, which, combined with using 100% aluminum, leads to attractive cost prices for large orders.
Ex., Loop thermosyphons’ extremely high thermal performance fits high power IGBT well, heat source below is 600W
IGBT, weight of the cooler is 1.6Kg, performance curve (Rth v.s. Air flow rate) is attached below:
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