Research Article
Heat Removal from Bipolar Transistor by Loop Heat Pipe with Nickel and Copper Porous Structures
Table 5
Main design parameters of the LHP.
| | Evaporator | | | Total length (mm) | 130 | | Active length (mm) | 86 | | Outer/inner diameter (mm) | 28/26 | | Material | Copper | | Saddle | | | Size (length/height/width) | 118/89/40 | | Material | Alumina | | Sintered copper powder | | | Number of vapor grooves | 6 | | Porosity (%) | 52–55 | | Outer/inner diameter (mm) | 26/8 | | Sintered nickel powder | | | Number of vapor grooves | 6 | | Porosity (%) | 67–70 | | Outer/inner diameter (mm) | 26/8 | | Compensation chamber | | | Outer/inner diameter (mm) | 35/33 | | Length (mm) | 110 | | Charge mass | | | Distilled water | 60% | | Vapor line | | | Length (mm) | 670 | | Outer/inner diameter (mm) | 6/4 | | Liquid line | | | Length (mm) | 820 | | Outer/inner diameter (mm) | 6/4 | | Condenser | | | Length (mm) | 420 | | Outer/inner diameter (mm) | 6/4 |
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