Enhancement of Heat Transfer and Scale Inhibition in Flow Subcooled Boiling System
流动过冷沸腾传热强化及阻垢

In the experiment of flow boiling heat transfer, the effects of calcium carbonate scaling and various technologcial conditions on flow subcooled boiling heat transfer were studied experimentally. The investigated conditions include liquid flow rate, temperature, concentration of calcium carbonate solution and heat flux. The effect of different scale inhibitors polyaspartic acid (PASP), 2-phosphono-1,2,4-tricarbocylic butane (PBTCA) and amino-trimethylene-phosphonic acid (ATMP)] on flow subcooled boiling heat transfer was also examined. The results show that all the scale inhibitors can suppress the formation of scaling and reduce the fouling resistance, and there exists an optimum range of scale inhibitor concentration. However, different scale inhibitors perform differently, and under the experimental conditions, ATMP has the best effect of reducing fouling, followed by PBTCA and PASP.