A heat transfer textbook

▪ Abstract This review examines recent advances made in predicting boiling heat fluxes, including some key results from the past. The topics covered are nucleate boiling, maximum heat flux, transition boiling, and film boiling. The review focuses on pool boiling of pure liquids, but flow boiling is also discussed briefly.

Boiling heat transfer

https://engineering.purdue.edu/BTPFL/BTPFL%20Publications/92.pdf

Flow boiling heat transfer in two-phase micro-channel heat sinks––I. Experimental investigation and assessment of correlation methods

Boiling in microchannels: a review of experiment and theory

A new heat transfer model for intube flow boiling in horizontal plain tubes is proposed that incorporates the effects of local two-phase flow patterns, flow stratification and partial dryout in annular flow. Significantly, the local peak in the heat transfer coefficient versus vapor quality can now be determined from the prediction of the location of onset of partial dryout in annular flow. The new method accurately predicts a large, new database of flow boiling data, and is perticularly better than existing mehods at high vapor qualities (x > 85%) and for stratified types of flows.

Flow Boiling in Horizontal Tubes: Part 3—Development of a New Heat Transfer Model Based on Flow Pattern

In flow boiling, the nucleate and convective components are superimposed by a very complex mechanism, which so far is not well understood Two models exist in present literature, one by Chen [3] (1963), using addition of the two components with a suppression factor; and one by Shah [8] (1976), using the “greater of” the two components with a Bo-number simplified correlation Neither model presents a satisfactory solution, as attested by the numerous methods published since then, mostly based only on regression analysis-derived correction factors In this article a new model, based on asymptotic addition of the two boiling components, is introduced It follows the established principles of flow boiling and converges correctly to the extremes of all parameters Tested on the University of Karlsruhe data bank containing over 13,000 data points in vertical flow boiling, results superior to previous correlations are demonstrated

Flow Boiling Heat Transfer in Vertical Tubes Correlated by an Asymptotic Model

This article attempts to update the rather sketchy methods for double pipe exchangers in the present literature, especially those for longitudinal finned tubes. Areas and conditions for the most useful application of double and multitube exchangers are outlined. Calculation methods are presented for plain double pipe units, as well as finned tube units, with a new development in the important transition region with “cut-and-twist” turbulency promoters. Equations for the mean temperature difference for units with flow in series-parallel are also given.

Double-Pipe and Multitube Heat Exchangers with Plain and Longitudinal Finned Tubes

The principles of ‘ rating’ and ‘ design ’ of shell-and-tube heat exchangers are described as they developed from manual type methods to computerized applications. Criteria for initial design considerations, identification of limiting cases, and analysis of intermediate and final designs are described in sufficient detail to serve as a guide for heat exchanger designers. Future developments in the art and techniques of exchanger design are discussed.

Evolution of Heat Exchanger Design Techniques

Flow-induced tube vibration in shell-and-tube heat exchangers has resulted in tube failure that has caused industrial plants and power stations to be shut down for costly repairs. As a result, possible flow-induced tube vibration problems have joined thermal, hydraulic, and mechanical design considerations. There have been few vibration research studies made with actual shell-and-tube heat exchangers. Most tests have been made with ideal tube banks, and there is a serious question as to whether the methods developed from these tests apply to the complex geometry in a shell-and-tube heat exchanger. Although not providing the best solution, data banks of field experience offer a practical way of evaluating proposed methods for predicting vibration problems. This paper follows the evolution of various data banks, discusses the essential need for vibration data banks, notes the difficulties in collecting and using their content, and describes the latest project to develop the new DOE/ANL/HTRI Heat Ex...

Jerry Taborek

Papers

Flow Boiling Heat Transfer in Vertical Tubes Correlated by an Asymptotic Model

Double-Pipe and Multitube Heat Exchangers with Plain and Longitudinal Finned Tubes

Evolution of Heat Exchanger Design Techniques

Flow-induced Tube Vibration Data Banks for Shell-and-Tube Heat Exchangers

Editorial is There Really AN Energy Crisis