W Rme Bertragung

W  rme  bertragung PDF Book Detail:
Author: Peter Böckh
Publisher: Springer-Verlag
ISBN: 3642030432
Size: 45.20 MB
Format: PDF, Docs
Category : Science
Languages : de
Pages : 260
View: 6109

Get Book

Book Description: Das Buch vermittelt die Grundlagen der Wärmeübertragung und versetzt Leser in die Lage, Wärmeübertrager auszulegen und zu analysieren. Auch in der 3. Auflage wird auf ausgedehnte theoretische Herleitungen verzichtet und stattdessen die dem Stand der Technik entsprechenden Beziehungen für Wärmeübergangszahlen angegeben. Nach der Einführung in die Grundbegriffe werden Leser mit den wichtigsten Wärmeübertragungsformen vertraut gemacht. Zahlreiche Beispiele zeigen die Anwendung in der Praxis. Ein Buch für Studierende sowie für Ingenieure in der Praxis.

Flow Boiling Heat Transfer In Narrow Vertical Channels

Flow Boiling Heat Transfer in Narrow Vertical Channels PDF Book Detail:
Author:
Publisher: Cuvillier Verlag
ISBN: 3736912404
Size: 17.84 MB
Format: PDF, ePub, Docs
Category : Technology & Engineering
Languages : de
Pages : 136
View: 5641

Get Book

Book Description: Saturated flow boiling heat transfer and flow visualization experiments were carried out in three vertical rectangular channels with dimensions (width×height) 2.0×4.0, 0.86×2.0 and 0.54×1.60 mm² (corresponding to hydraulic diameters 2.67, 1.20 and 0.81 mm, respectively). The channels were heated from three sides. Deionized water was used as the working fluid. The channel exit was at atmospheric pressure. Benchmark experiments of single-phase flow were also conducted for pressure drop and heat transfer. Experimental results show that for the 0.54×1.60 mm² channel, the singlephase friction factor is higher than predicted by well-accepted correlations, while for the other two channels it can be well correlated. The heat transfer performance for both laminar and turbulent regimes under asymmetric heating conditions is different from that under uniform heating conditions on which the existing correlations are based. Therefore single-phase heat transfer correlations were modified so that they could be incorporated into the two-phase heat transfer correlations employed for asymmetric heating conditions. For flow boiling, three basic flow patterns are observed for all the channels, viz., bubbly, slug and annular flow. However, based on the developed flow pattern maps, the transition from slug to annular flow for the 2.0×4.0 mm² channel occurs at a lower superficial vapor velocity than for the two small channels. This suggests that the nucleate boiling mechanism, which generally corresponds to slug flow, is more important for the two small channels. Saturated flow boiling heat transfer characteristics were investigated under different heat flux, mass flux and vapor quality. The experimental local heat transfer coefficient for the 2.0×4.0 mm² channel is in good agreement with the modified Kandlikar correlation and the Shah correlation. For the smaller channels (0.86×2.0 mm² and 0.54×1.60 mm²), the heat transfer characteristics are not dominated by the convective boiling mechanism. On the contrary, the nucleate boiling term of the Kandlikar correlation predicts the experimental heat transfer coefficient relatively well. Two new correlations have been developed in which the local two-phase heat transfer coefficient is related to the single-phase heat transfer coefficient by a twophase multiplier, which is a function of the Boiling number and thermodynamic vapor quality. The developed correlations show rather good agreement with experimental results.

A Textbook On Heat Transfer

A Textbook on Heat Transfer PDF Book Detail:
Author: S.P. Sukhatme
Publisher: Universities Press
ISBN: 9788173715440
Size: 76.55 MB
Format: PDF, ePub, Docs
Category : Heat
Languages : en
Pages : 396
View: 1735

Get Book

Book Description: This classic text deals with the elementary aspects of heat transfer, with special emphasis on the fundamental laws so that the subject is perceived by the students as both a science and an art. The text is supported by a large number of solved examples.

Heat Transfer

Heat Transfer PDF Book Detail:
Author: Tariq Muneer
Publisher: Taylor & Francis
ISBN: 9780415241694
Size: 20.80 MB
Format: PDF, Docs
Category : Technology & Engineering
Languages : en
Pages : 353
View: 7530

Get Book

Book Description: CD-ROM contains: Excel workbooks for examples and problems -- Software tool for thermodynamic properties.

A Heat Transfer Textbook

A Heat Transfer Textbook PDF Book Detail:
Author: John H Lienhard
Publisher: Courier Dover Publications
ISBN: 0486837351
Size: 67.69 MB
Format: PDF, Mobi
Category : Science
Languages : en
Pages : 784
View: 1973

Get Book

Book Description: Introduction to heat and mass transfer for advanced undergraduate and graduate engineering students, used in classrooms for over 38 years and updated regularly. Topics include conduction, convection, radiation, and phase-change. 2019 edition.

Heat Transfer

Heat Transfer PDF Book Detail:
Author: Alan Jesse Chapman
Publisher: Prentice Hall
ISBN:
Size: 80.65 MB
Format: PDF, ePub, Mobi
Category : Science
Languages : en
Pages : 608
View: 535

Get Book

Book Description: Basic undergraduate heat transfer text for the first heat transfer course.

Advances In Heat Transfer

Advances in Heat Transfer PDF Book Detail:
Author:
Publisher: Academic Press
ISBN: 9780080575674
Size: 72.10 MB
Format: PDF, Mobi
Category : Science
Languages : en
Pages : 279
View: 4456

Get Book

Book Description: Advances in Heat Transfer

Advances In Heat Transfer

Advances in Heat Transfer PDF Book Detail:
Author: James P. Hartnett
Publisher: Academic Press
ISBN: 9780080524436
Size: 72.85 MB
Format: PDF, ePub, Docs
Category : Science
Languages : en
Pages : 322
View: 5347

Get Book

Book Description: Heat transfer is the exchange of heat energy between a system and its surrounding environment, which results from a temperature difference and takes place by means of a process of thermal conduction, mechanical convection, or electromagnetic radiation. Advances in Heat Transfer is designed to fill the information gap between regularly scheduled journals and university-level textbooks by providing in-depth review articles over a broader scope than is allowable in either journals or texts.

Engineering Heat Transfer

Engineering Heat Transfer PDF Book Detail:
Author: M. M. Rathore
Publisher: Jones & Bartlett Learning
ISBN: 0763777528
Size: 73.68 MB
Format: PDF, Docs
Category : Technology & Engineering
Languages : en
Pages : 1178
View: 3415

Get Book

Book Description: Intended as a textbook for undergraduate courses in heat transfer for students of mechanical, chemical, aeronautical, and metallurgical engineering, or as a reference for professionals in industry, this book emphasizes the clear understanding of theoretical concepts followed by practical applications. Treating each subject analytically and then numerically, it provides step-by-step solutions of numerical problems through the use of systematic procedures by a prescribed format. With more than a million users in industry, MATLAB is the most popular computing programming language among engineers. This Second Edition has been updated to include discussions on how to develop programs that solve heat transfer problems using MATLAB, which allows the student to rapidly develop programs that involve complex numerical and engineering heat transfer computations.

Heat Transfer Fluids And Systems For Process And Energy Applications

Heat Transfer Fluids and Systems for Process and Energy Applications PDF Book Detail:
Author: Singh
Publisher: CRC Press
ISBN: 9780824771911
Size: 46.95 MB
Format: PDF, Kindle
Category : Science
Languages : en
Pages : 296
View: 6182

Get Book

Book Description: This book presents the basic principles and engineering data governing the process design of indirect heat transfer fluids and systems. It focuses on the selection of systems based on common engineering criteria such as reliability and cost, and particularly on energy conservation and safety.