| Title |
An Experimental Study on the Heat Transfer Characteristics of High-Temperature Cylindrical Heat Pipes |
| Keywords |
High-temperature ; 고온 ; Sodium ; 소듐, 나트륨 ; Heat pipe ; 히트파이프 ; Screen mesh wick ; 스크린 메쉬 윅 |
| Abstract |
High-temperature cylindrical sodium/stainless-steel heat pipes were manufactured and tested for transient as well as steady states. Total length of the heat pipe was 1m and the diameter was 25.4mm. Screen meshes of 3 different sizes were used to estimate the effect of mesh size on the thermal performance of the heat pipe.
The minimum thermal resistance achieved was as low as 0.02℃/W for the maximum thermal load of 2kW. The average heat transfer coefficient in the evaporator was about 2,000 kW/m2K and those in the condenser region were up to 5 times higher. |