*

*

1-155%1963Grover*

()*

1-2 Heat pipe with spreader plate Hinged heat pipe system hinge connector Remote heat exchanger system

*

*

P.S. (J/m) *

*

1-3-1Moon et al.2000 3~4mm *

3mm4mm29.3%31%5~-5200mm~250mm3mm4mm6.8~9.5W19.5~47.5W*

Ponnappan2000Groove-wick9037115W/cm16000~22000W/cm4000~14000W/cm*

1-3-2Oomi et al.199920~50W3mm6mm

*

TakeWebbIP-HP IP-HP11x10mm80x50mm43%50%*

2-1 *

1.2.)3.)4.) *

*

*

*

2-2*

(figure of merit)MM= L P.S. M*

*

(dry out)(burn out)*

(1) (2) (3)

*

2-2-1 r

*

=1 =0*

2-2-2 *

Darcys law

x *

2-2-3 1.() 2.(Cotter) ????*

(

Hagen-Poiseuille *

*

*

Cotter *

*

*

2-2-4 g l ()*

2-3 1. 2. *

*

3-1 1. 2. 3. 4.*

3-2 45cm40cm40cm2A32VT*

3-34950.127mmT0.2mm 4.7x4.5x1 4.5cm 4.8x4.8x2 4.8cm*

15cm45mm57mm48mm12V2.76W5400rpm45.2CFM12V1.56W4000rpm141.6CFM*

CPU 6.8W/mK3.2W/mK P.S. *

3-41.123 2.456mm 3.45.211.6CFM4.6.83.2W/m*K 5.10.20.30.40W*

TypeA3.2W/mK TypeB6.8W/mK Volumn111.6CFM Volumn245.2CFM*

()40W6()10~40W*

()*

6mm5%5mm4mm14%10%3%5%*

6mm0.7~5.75.1~29.5()

*

6mm46.8~60.6%5mm4mm30.2~42.8%27.6~42.5%*

Navier-stokes Equations () *

1. 2.Navier-stokes *

*

(nabla) A*

(ex.) () *

*

Navier-stokes Navier-stokes Navier-stokes*

*

*

*

1.(Bingham plastic fluid) 2.(plastic fluid) = Bingham plastic fluid + pseudoplastic fluid 3.(dilatant fluid) = shear thickening fluid *

4.(pseudoplastic fluid) = shear thinning fluid 5.(rheopectic fluid) 6.(thixotropic fluid) *

0.3>0.3

1. 2. 3. 4.*

*

*

*

*

*

1. 2. 3. *

*

*

Heat pipe with spreader plate*

Hinged heat pipe system*

Remote heat exchanger system*

New folded screen wick*

*

*

*

*

*

*

*

*

*

b v *

Darcys Law KL *

*

4000 *

111 UC() *

PA F=PA L W=FL=PAL=PV *

Hagen-PoiseuilleHagen-Poiseuille *

*

*

*

*

E*

*

*

*

*

TypeB*

(Volume1)*

6mmTypeB*

(Path-line)(Streak-line)(Stream-line)

*

*

*

*

*

********************************************************