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用热块技术对低压、低质量流速下垂直环形通道中水的过渡沸腾传热进行实验研究，实验范围是：压力Ｐ＝２．５－１０．９ｂａｒ，质量流速Ｇ＝７４．２－２２３．９ｋｇ／ｍ２ｓ，进口过冷度△Ｔｓｕｂ＝５．５－３２．４℃。用一维和二维模型对实验数据分析处理，得到许多不同工况下的过渡沸腾曲线，并对影响过渡沸腾传热的主要因素进行了分析。实验发现，管壁的热流密度值在过渡沸腾区域有较大波动，表明过渡沸腾这种传热方式所固有的不稳定性。得到了一个预测过渡沸腾传热的公式，并和其他关系式进行了比较。
The experimental study on the transition boiling heat transfer of water in the vertical annular channel with low pressure and low mass flow rate was carried out by using thermal block technique. The experimental range was: pressure P = 2.5-10.9 bar and mass flow rate G = 74.2-223. 9kg / m2s, inlet subcooling △ Tsub = 5.5-32.4 ℃. The experimental data were analyzed by one-dimensional and two-dimensional models, and the transition boiling curves were obtained under many different conditions. The main factors affecting the transition boiling heat transfer were also analyzed. The experimental results show that the heat flux density in the pipe wall fluctuates greatly in the transitional boiling region, indicating the instability inherent in the heat transfer mode of transition boiling. A formula for predicting transition boiling heat transfer is obtained and compared with other relationships.