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强化传热期刊
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ISSN 打印: 1065-5131
ISSN 在线: 1026-5511

强化传热期刊

DOI: 10.1615/JEnhHeatTransf.v11.i4.190
pages 417-422

Experimental Investigation on Fouling Performance of Corrugated Tubes

Zhi-ming Xu
College of Energy and Power Engineering, Northeast Electric Power University, 169 Chang Chun Rd. Chuanying District, Jilin 132012, China
Shanrang Yang
Northeast China Institute of Electric Power Engineering, Jilin City, Jilin Province, 132012, China
Yunhua Gan
Northeast China Institute of Electric Power Engineering, Jilin City, Jilin Province, 132012, China

ABSTRACT

This paper describes the results of heat transfer performance tests for cooling water flowing inside the corrugated tube. Based on the experimental data, a dimensionless correlation for forced convection heat transfer inside the corrugated tube is attained. Moreover, the comparative fouling experiments were carried out between a corrugated tube and its corresponding plain tube. The experimental working fluid was water solution of CaCl2 and NaHCO3 with a hardness of 800 mg/L inside tubes, and the experiments were done under the conditions of 0.38 m/s liquid velocity, temperature of 60 °C at the water tank, and the same inlet temperature of working fluid inside the tubes. The experimental results show that the corrugated tube has an advantage both in heat transfer performance and in anti-fouling ability over the plain tube.


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