为了支持高通量反应堆HFETR和先进研究堆CARR的设计(其中HFETR己于1980年投入运行,而CARR正在建造),多年来本试验室在环形通道中低压欠热沸腾条件下进行了大量临界热流密度(CHF)试验。环形通道的外径变化范围为12～70mm,间隙宽度2～4mm,加热圆管材料为不绣钢,水自上而下流动。 To support the design of high-throughput reactors HFETR and Advanced Research Reactor CARR, of which HFETR was put into operation in 1980 and CARR is under construction, the laboratory has for many years conducted a large number of critical heat fluxes in a toroidal passage under low-pressure, Density (CHF) test. The outer diameter of the annular channel varies from 12 to 70 mm with a gap width of 2 to 4 mm. The heating pipe material is stainless steel and the water flows from top to bottom.