Heat Transfer
Heat Transfer
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DOI:
10.1017/9781108592123.014
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发表时间:
2019-01
期刊:
影响因子:
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通讯作者:
Prasunjit Sengupta
中科院分区:
文献类型:
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作者:
Prasunjit Sengupta
Correspondence Hardial Singh, Department of Mechanical Engineering, Amity University Haryana, Gurugram, Haryana 122413, India. Email: hardialsingh3@gmail.com Abstract This paper presents a simple straight tube with different types of inserts in which there is a flow of water + Al2O3. The experimental and computational studies were performed for different inserts, such as simple insert, twisted‐I, twisted‐II, and simple straight tube. The coefficient of heat transfer and Nusselt number is computed for mass flow rate ranging between 0.06 and 0.20 m/s. The simple straight tube is used as a means of validating the experimental results with computational results. The work concluded that twisted‐II inserts provide enhanced thermal performance in comparison to all other process conditions. In this study, statistical analysis is performed by statistical software and by generating model equations. Furthermore, the effect of a twisted insert in heat pipe for two types of fluids, that is, water and nanofluid (Al203 + water) is experimentally and computationally designed using the Taguchi method and orthogonal array concept. Moreover, temperature and velocity contours are developed for all four types of insert designs in the tube.