Design and Operation of Heat Exchangers: Proceedings of the Eurotherm Seminar No. 18, February 27 - March 1 1991, Hamburg, Germany

ISBN-13: 9783642844522 / Angielski / Miękka / 2011 / 439 str.

Wilfried Roetzel; Peter J. Heggs; David Butterworth

Opis

This particular Seminar No. 18 on the Design and Operation of Heat Exchangers was the first one on this topic and was held at the Universit{t der Bundeswehr Hamburg (University of the Federal Armed Forces Hamburg) fromFebruary 27 to March 1 in 1991. The seminar was an international event and was attended by more than 60 scientist not only from countries of the European Community such as Belgium, France, Germany, Great Britain, and the Netherlands but also from other countries such as Canada, China, India, Israel, Romania, Soviet Union, Sweden and the United States of America. In this proceedings volume thirty-seven conference papers are published dealing with various aspects of the design and operation of heat exchangers. The first four papers are of general interest and not restricted to special flow arrange- ments or geometries. The next six contributions refer to shell and tube heat exchangers. In the following chapter 10 papers are represented which deal with cross-flow heat ex- changers. Another group of six refers to plate heat exchan- gers. The next two papers deal with heat storage in regene- rators and in the soil. The last chapter contains nine pa- pers on multiphase heat transfer invarious applications such as power plant condensers, heat pipe and direct contact heat exchangers. Thus, a great variety of theory and practi- ce is offered in this volume and thanks are due to all con- tributors.

Spis treści

General Problems.- Selected problems in heat exchanger design.- Compact new formulae for mean temperature difference and efficiency of heat exchangers.- The multi-dimensional thermalhydraulics code TRIO applications to heat exchangers.- Heat exchanger control by stream(s) by-pass.- Shell and Tube Heat Exchangers.- Effects of unequal transfer area in multi-pass heat exchangers.- Variable pitch tube layout concept for shell and tube heat exchanger.- Design improvements of a shell and tube heat exchanger based on practical experience and numerical analysis.- Simple algorithms for optimization of shell and tube heat exchangers.- Dispersion model for divided-flow heat exchanger.- Heat exchanger in transient conditions.- Cross-Flow Heat Exchangers.- Approximate equations for the design of cross-flow heat exchangers.- Numerical analysis of cross-flow heat exchangers in order to establish a new design method.- Improvement of fin-tube heat exchangers by longitudinal vortex generators.- Numerical studies of a compact fin-tube heat exchanger.- Heat transfer and pressure drop in single rows.- Pressure losses in tube bundles of close spacings.- Improvement of existing fuel-air heat exchangers of modern air-breathing engines.- A model for predicting the performance of domestic gas-fired water heaters.- Plastic heat exchangers.- Condition monitoring of air cooled heat exchangers.- Plate Heat Exchangers.- Approximate theory of spiral heat exchanger.- Thermal hydraulic performances of plate and frame heat exchangers — The CEPAJ software.- Flow distribution in plate heat exchangers and consequences on thermal and hydraulic performances.- Welded plate heat exchangers as refrigerants dry-ex evaporators.- Development of a compact heat exchanger for gas turbine heat recovery.- High performance titanium plate fin heat exchanger using a novel manufacturing process.- Regenerators.- Optimal thermal control of regenerative heat exchangers.- A simplified model for a helical heat exchanger for long-term energy storage in soil.- Multiphase Systems.- Pressure drop during condensation in vertical tubes.- Intensification of heat transfer in horizontal-tube vapour condensers.- Measurements and modelling: a 350 MWe power plant condenser.- The computer aided design of steam surface condensers.- Some comments on the use of mixed bundles of smooth and enhanced tubes in reboilers.- The heat pipe heat exchangers: design, technology and applications.- Performance analysis and test of a two-phase closed thermosyphon heat exchanger.- An application of semi-empirical turbulence theory to the hydrodynamics and heat exchange in gas-liquid foam.- Prediction of heat transfer rates in a liquid-liquid direct-contact heat exchanger.