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- Title
Optimum design study of a straight tube with different inserts for thermal performance characteristics.
- Authors
Gupta, Arun; Singh, Hardial
- 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.
- Subjects
HEAT transfer coefficient; NUSSELT number; HYDRAULICS; TAGUCHI methods; HEAT pipes; TUBES; VORTEX tubes
- Publication
Heat Transfer, 2020, Vol 49, Issue 4, p1955
- ISSN
2688-4534
- Publication type
Article
- DOI
10.1002/htj.21702