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Über dieses Buch

This Brief concerns heat transfer and pressure drop in heat transfer enhancement for boiling and condensation. The authors divide their topic into six areas: abrasive treatment and coatings, combined structured and porous surfaces, basic principles of boiling mechanism, vapor space condensation, convective vaporization, and forced condensation inside tubes. Within this framework, the book examines range of specific phenomena including abrasive treatment, open grooves, 3D cavities, etched surfaces, electroplating, pierced 3D cover sheets, attached wire and screen promoters, non-wetting coatings, oxide and ceramic coatings, porous surfaces, structured surfaces (integral roughness), combined structured and porous surfaces, composite surfaces, single-tube pool boiling tests, theoretical fundamentals like liquid superheat, effect of cavity shape and contact angle on superheat, entrapment of vapor in cavities, nucleation at a surface cavity, effect of dissolved gases, bubble departure diameter, bubble dynamics, boiling hysteresis and orientation effects, basic principles of boiling mechanism, visualization and mechanism of boiling in subsurface tunnels, and Chien and Webb parametric boiling studies.

Inhaltsverzeichnis

Frontmatter

Chapter 1. Introduction

Abstract
In this chapter, the enhanced boiling concept has been introduced. Nucleate boiling sites have been considered. It has been observed that incipient boiling heat flux depends on the surface texture. Boiling models are useful for prediction. The boiling mechanism is yet to be fully understood.
Sujoy Kumar Saha, Hrishiraj Ranjan, Madhu Sruthi Emani, Anand Kumar Bharti

Chapter 2. Pool Boiling Enhancement Techniques

Abstract
Pool boiling enhancement techniques with all their aspects have been presented in this chapter. Many different types of textured surfaces like abrasives, open groves, three-dimensional cavities, electroplating, attached wire and screen promoters, pierced three-dimensional cover sheets, etched surfaces, coatings, porous surfaces, structured surfaces, combined structured and porous surfaces and composite surfaces have been discussed in detail. Pool boiling tests of enhanced surfaces have also been discussed. Fundamental theory, effects of boiling hysteresis and orientation, boiling mechanism and models for structured surfaces and porous surfaces, critical heat flux (CHF) and thin film evaporation have all been included.
Sujoy Kumar Saha, Hrishiraj Ranjan, Madhu Sruthi Emani, Anand Kumar Bharti

Chapter 3. Flow Boiling Enhancement Techniques

Abstract
This chapter has started with the introduction to flow boiling enhancement techniques. Thereafter, the chapter runs through the fundamentals, flow patterns, thermal convection and pressure drop and flow orientation. Tube bundles, CHF and microfin tubes have also been discussed.
Sujoy Kumar Saha, Hrishiraj Ranjan, Madhu Sruthi Emani, Anand Kumar Bharti

Chapter 4. Condensation

Abstract
Vapour space condensation has been discussed in this chapter. Dropwise condensation, enhancement of film condensation and condensation on horizontal tube banks have been discussed.
Sujoy Kumar Saha, Hrishiraj Ranjan, Madhu Sruthi Emani, Anand Kumar Bharti

Chapter 5. Convective Condensation

Abstract
This concluding chapter deals with convective condensation. Forced condensation inside tubes, microfin tubes, flat tube automotive condensers, plate-type heat exchangers, the effect of non-condensable gases and correlative equations for circular tubes have been discussed.
Sujoy Kumar Saha, Hrishiraj Ranjan, Madhu Sruthi Emani, Anand Kumar Bharti

Chapter 6. Conclusions

Abstract
In this research monograph, heat transfer enhancement techniques have been discussed exhaustively for both boiling and condensation.
Sujoy Kumar Saha, Hrishiraj Ranjan, Madhu Sruthi Emani, Anand Kumar Bharti

Backmatter

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