对电加热水平管内制冷剂12蒸发的局部传热系数和压降进行了实验研究。304型不锈钢管，外径为0-500英寸，壁厚为0.020英寸，加热长度为76 1/8英寸，用作试验段。9个皮下导管接头和35个热电偶测量了液体饱和压力和壁温分布。通过将高达200安培的电流直接通过管壁，可获得2200至11000 BTU/hr平方英尺的均匀壁热流。 质量流速范围为89000至433000 lb/hr sq ft，入口蒸汽质量恒定为20%。

An experimental investigation was conducted to obtain local heat transfer coefficients and pressure drop for Refrigerant 12 evaporating in an electrically heated horizontal tube.Type 304 stainless steel tubing, with an outside diameter of 0-500 inches, a wall thickness of 0.020 inches, and a heated length of 76 1/8 inches, served as the test section. Nine hypodermic-tube taps and 35 thermocouples measured the fluid saturation pressure and wall temperature distribution. Uniform wall heat fluxes from 2200 to 11,000 BTU/hr-sq ft were achieved by passing current of up to 200 amperes directly through the tube wall. The mass velocity was varied from 89,000 to 433,000 lb/hr-sq ft, with a constant inlet vapor quality of 20 percent.