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An Experimental Study on the Two-Phase Natural Circulation Flow through an Annular Gap between Reactor Vessel and Insulation under External Vessel Cooling

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Academic year: 2021

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대한기계학회 2003년도 춘계학술대회 논문집

(2)

Reactor Vessel

ICI Penetrations Water Inlets

Shear Key Venting Slots

Insulation

Water Level

Hot Leg

(3)

925

520 4172020

105 5 Polycarbonate(PC)

69.885 2020

168

polycarbonate(PC)

42519

27

20 Rod Heater(10kW)

59.3

500

400

Insulator

Insulator Water Tank

31

5t 19 238 228

230

1 inch flange

230

대한기계학회 2003년도 춘계학술대회 논문집

(4)

395 31

Back Flow

Reciculation Flow Exit Port

Water Inlet

Water Inlet

Exit Port

Reciculation Flow

Back Flow

19

270

31

(5)

50 60 70 80 90 100 0.00

0.02 0.04 0.06 0.08 0.10

4 6 8 10 12

Heating Experiment

Heat Flux (kW/m

2

)

Recirculation Flow Rate (kg/sec)

Equivalent Heat Flux (kW/m

2

)

Non-Heating Experiment

Non-Heating Experiment (add. venting)

50 60 70 80 90 100

0.00 0.02 0.04 0.06 0.08 0.10

4 6 8 10 12

Equivalent Heat Flux (kW/m

2

)

Heating Experiment

Recirculation Flow Rate (kg/sec)

Heat Flux (kW/m

2

)

Non-Heating Experiment

대한기계학회 2003년도 춘계학술대회 논문집

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