| In this series of tests we drove an IGBT module until the junction temperature reached 120c and then measured the loss. | Module Loss (W) for
IGBT die 120c junction temperature. Operating at a steady state load
| Module Loss (W) for IGBT die 120c junction termperature. Operating with a 220% overload capability
|
Heatsink/Cold plate degree C/W
Hot spot rise under module/total module loss in W
|
Convection Air
40c ambient, 150CFM
| 600w | 405w | 0.094 |
Pressed Tube
Water Cold Plate
3 cold plates 6 gal/min, 40c ambient 50c fluid temp.
| 736 | 437 | 0.051 |
Extended Surface
Water Cold Plate
3 cold plates 6 gal/min, 40c ambient 50c fluid temp. | 1070 | 500 | 0.035 |
Using Water
Parker two-phase
extended surface
3 cold plates 6 gal/min, 40c ambient 50c fluid temp. | 1040 | 490 | 0.037 |
Using R134a Parker two-phase
extended surface
3 cold plates 1.2 gal/min, 40c ambient 50c fluid temp. | 1184 | 568 | 0.009 |
Download the paper;
Parker Hannifin IMAPS France presentation on 2 phase cooling.pdf