A GENERAL CORRELATION FOR SATURATED 2-PHASE FLOW BOILING HEAT-TRANSFER INSIDE HORIZONTAL AND VERTICAL TUBES
A GENERAL CORRELATION FOR SATURATED 2-PHASE FLOW BOILING HEAT-TRANSFER INSIDE HORIZONTAL AND VERTICAL TUBES
复制标题
DOI：
10.1115/1.2910348
复制
发表时间：
1990-02-01
影响因子：
--
通讯作者：
KANDLIKAR, SG
中科院分区：
文献类型：
--
作者：
KANDLIKAR, SG
Kandlikar（1983）早期开发了一种简单的相关性，用于预测水平和垂直管内的饱和流动沸腾传热系数。它是基于一个模型，利用由于核沸腾和对流机制的贡献。在泡核沸腾项中加入了一个与流体有关的参数Fflin。通过与詹森和Bensler（1986年）以及Khanpara等人（1986年）关于R-113的最新数据进行比较，证实了该关联式对不同制冷剂的预测能力。在目前的工作中，早期的相关性进一步完善，扩大数据库5246个数据点，从24个实验调查与10种流体。建议的相关性，方程（4）和（5），连同表3和表4中给出的常数，沿着给出了水数据的15.9%的平均偏差，以及所有制冷剂数据的18.8%的平均偏差，并且它还预测了正确的hTP与x的趋势，如水和R-113数据所验证的。用最近的R-22和R-113数据进行的额外测试在测试的相关性中产生了最低的平均偏差。所提出的相关性可以扩展到其他流体，通过评估流体相关参数Ffl，该流体从其流动沸腾或池沸腾数据。
A simple correlation was developed earlier by Kandlikar (1983) for predicting saturated flow boiling heat transfer coefficients inside horizontal and vertical tubes. It was based on a model utilizing the contributions due to nucleate boiling and convective mechanisms. It incorporated a fluid-dependent parameter Fflin the nucleate boiling term. The predictive ability of the correlation for different refrigerants was confirmed by comparing it with the recent data on R-113 by Jensen and Bensler (1986) and Khanpara et al. (1986). In the present work, the earlier correlation is further refined by expanding the data base to 5246 data points from 24 experimental investigations with ten fluids. The proposed correlation, equations (4) and (5), along with the constants given in Tables 3 and 4, gives a mean deviation of 15.9 percent with water data, and 18.8 percent with all refrigerant data, and it also predicts the correct hTPversus x trend as verified with water and R-113 data. Additional testing with recent R-22 and R-113 data yielded the lowest mean deviations among correlations tested. The proposed correlation can be extended to other fluids by evaluating the fluid-dependent parameter Fflfor that fluid from its flow boiling or pool boiling data.