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About this book

This Brief describes heat transfer and pressure drop in heat transfer enhancement by insert devices and integral roughness. The authors deal with twisted-tape insert laminar and turbulent flow in tubes and annuli in smooth tubes and rough tubes, segmented twisted-tape inserts, displaced enhancement devices, wire coil inserts, extended surface inserts and tangential injection devices. The articles also address transverse and helical integral rib roughness, corrugated tube roughness, 3D and 2D roughness, rod bundles, outside roughness for cross flow, non-circular channels, Reynolds analogy and similarity law, numerical simulation and predictive models. The book is ideal for professionals and researchers working with thermal management in devices.

Table of Contents

Frontmatter

Chapter 1. Introduction

Abstract
The introduction on heat transfer enhancement using various insert configurations is presented in this chapter. The types of inserts and basic roughness elements have been discussed here.
Sujoy Kumar Saha, Hrishiraj Ranjan, Madhu Sruthi Emani, Anand Kumar Bharti

Chapter 2. Twisted Tape Insert

Abstract
The performance of heat transfer enhancement using twisted tape inserts has been explained in this chapter. The types of twisted tapes and their impact on heat transfer enhancement for laminar, transition and turbulent flow regimes have been presented in detail. The geometrical parameters necessary to describe twisted tape and their effect on heat transfer and pressure drop characteristics have been illustrated.
Sujoy Kumar Saha, Hrishiraj Ranjan, Madhu Sruthi Emani, Anand Kumar Bharti

Chapter 3. Displaced Enhancement Devices and Wire Coil Inserts

Abstract
This chapter has been presented with the heat transfer enhancement performance of displaced enhancement devices and wire coil inserts. Different correlations developed by researches across the world have been included. Experimental and numerical analysis for various insert configurations has been reported.
Sujoy Kumar Saha, Hrishiraj Ranjan, Madhu Sruthi Emani, Anand Kumar Bharti

Chapter 4. Swirl Generators, Extended Surface Insert and Tangential Injection Devices

Abstract
The thermohydraulic performance of different swirl generators, extended surface insert and tangential injection devices has been briefed in this chapter. The continuous swirl flow and decaying swirl flow have been discussed. Correlations for Nusselt number friction factor using these devices have been presented.
Sujoy Kumar Saha, Hrishiraj Ranjan, Madhu Sruthi Emani, Anand Kumar Bharti

Chapter 5. Numerical Simulation of Integral Roughness, Laminar Flow in Tubes with Roughness and Reynolds Analogy for Heat and Momentum Transfer

Abstract
The study on numerical simulation of integral roughness, laminar flow in tubes with roughness and Reynolds analogy for heat and momentum transfer has been dealt in this chapter. The performance of 2D and 3D roughness for heat transfer augmentation has been shown. The general observations of rib performance have been presented.
Sujoy Kumar Saha, Hrishiraj Ranjan, Madhu Sruthi Emani, Anand Kumar Bharti

Chapter 6. 2D Roughness, 3D Roughness and Roughness Applications

Abstract
The heat transfer and pressure drop characteristics of flow in channels with 2D roughness, 3D roughness and various roughness applications have been presented in this chapter. The thermo-hydraulic performance of various roughness elements such as corrugations, ribs, grooves and dimples has been discussed in detail.
Sujoy Kumar Saha, Hrishiraj Ranjan, Madhu Sruthi Emani, Anand Kumar Bharti

Chapter 7. Compound Techniques

Abstract
The different combinations of two or more inserts and integral roughness elements for heat transfer augmentation purpose have been presented in this chapter. It is shown that most of the compound techniques performed better than the individual inserts for heat transfer enhancement.
Sujoy Kumar Saha, Hrishiraj Ranjan, Madhu Sruthi Emani, Anand Kumar Bharti

Chapter 8. Conclusions

Abstract
The following conclusions may be drawn from the discussion made in this research monograph:
Sujoy Kumar Saha, Hrishiraj Ranjan, Madhu Sruthi Emani, Anand Kumar Bharti

Backmatter

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