Jan Taler – författare

This book reports on cutting-edge applied research and methods in the area of heat and mass transfer and computational fluid dynamics. With a special emphasis on computational methods, it covers applications to different fields, including mechanical engineering, aerospace, and energy, among others. Some relevant experimental validations are described as well. Being the second volume of the two-volume proceedings of the 14th International Conference on Computational Heat and Mass Transfer, ICCHMT 2023, held on September 4-8, 2023, in Düsseldorf, Germany, this book offers a timely perspective of research and applications in the field of computational heat and mass transfer. It also provides both academics and professionals with extensive information and a source of inspiration for new developments and collaborations.

Being the first volume of the two-volume proceedings of the 14th International Conference on Computational Heat and Mass Transfer, ICCHMT 2023, held on September 4-8, 2023, in Düsseldorf, Germany, this book offers a timely perspective of research and applications in the field of computational heat and mass transfer.

This book presents new methods for solving inverse heat transfer problems occurring in thermal engineering. In the inverse problems analysed in the book, the temperature distribution inside a body or the parameters in the boundary conditions are determined based on temperature measurements at selected points of the body. Analytical and numerical methods for solving inverse heat conduction problems are presented, including the determination of transient thermal stresses in structural elements with simple and complex shapes. Methods for determining thermal stresses on the inner surface of pressure components based on measuring the temperature of the component inside the wall or based on measuring the temperature on an easily accessible, thermally insulated outer surface of the pressure component are presented. Methods for determining the optimum time temperature changes of the fluid in pressure components during heating or cooling are presented, so that the total circumferential stress resulting from pressure and thermal loading is equal to the permissible stress.A large part of the book is devoted to solving inverse problems in heat exchangers. The following inverse problems were solved: determination of the HTC distribution on the outer surface of a tube in the bundle of a crossflow heat exchanger, determination of the absorbed heat flux, fluid temperature and the HTC on the inner surface of the waterwall tube, simultaneous determination of heat transfer correlations for Nusselt numbers in heat exchangers on both tube wall surfaces, the control of water temperature at the outlet of the plate-fin and tube heat exchanger by changing the fan rotational speed and determination of the number of air fan revolutions based on the measurement of the water temperature at the outlet of the car radiator.The future time steps, regularisation of the inverse solution and pre-smoothing of measured temperature changes are used throughout the book to reduce the oscillation of the inverse solution over time. The book is intended for students, academics and researchers, as well as for designers and manufacturers working in the area of thermal engineering.

This book is devoted to the concept of simple and inverse heat conduction problems. The process of solving direct problems is based on the tempera­ ture determination when initial and boundary conditions are known, while the solving of inverse problems is based on the search for boundary condi­ tions when temperature properties are known, provided that temperature is the function of time, at the selected inner points of a body. In the first part of the book (Chaps. 1-5), we have discussed theoretical basis for thermal conduction in solids, motionless liquids and liquids that move in time. In the second part of the book, (Chapters 6-26), we have discussed at great length different engineering problems, which we have presented together with the proposed solutions in the form of theoretical and mathematical examples. It was our intention to acquaint the reader in a step-by-step fashion with all the mathematical derivations and solutions to some of the more significant transient and steady-state heat conduction problems with respect to both, the movable and immovable heat sources and the phenomena of melting and freezing. Lots of attention was paid to non-linear problems. The methods for solving heat conduction problems, i. e. the exact and approximate analytical methods and numerical methods, such as the finite difference method, the finite volume method, the finite element method and the boundary element method are discussed in great detail. Aside from algorithms, applicable computational programs, written in a FORTRAN language, were given.

This book is devoted to the concept of simple and inverse heat conduction problems. The process of solving direct problems is based on the tempera­ ture determination when initial and boundary conditions are known, while the solving of inverse problems is based on the search for boundary condi­ tions when temperature properties are known, provided that temperature is the function of time, at the selected inner points of a body. In the first part of the book (Chaps. 1-5), we have discussed theoretical basis for thermal conduction in solids, motionless liquids and liquids that move in time. In the second part of the book, (Chapters 6-26), we have discussed at great length different engineering problems, which we have presented together with the proposed solutions in the form of theoretical and mathematical examples. It was our intention to acquaint the reader in a step-by-step fashion with all the mathematical derivations and solutions to some of the more significant transient and steady-state heat conduction problems with respect to both, the movable and immovable heat sources and the phenomena of melting and freezing. Lots of attention was paid to non-linear problems. The methods for solving heat conduction problems, i. e. the exact and approximate analytical methods and numerical methods, such as the finite difference method, the finite volume method, the finite element method and the boundary element method are discussed in great detail. Aside from algorithms, applicable computational programs, written in a FORTRAN language, were given.

This book comprises select peer-reviewed papers presented at the International Conference on Advanced Engineering Optimization Through Intelligent Techniques (AEOTIT) 2018. The book combines contributions from academics and industry professionals, and covers advanced optimization techniques across all major engineering disciplines like mechanical, manufacturing, civil, automobile, electrical, chemical, computer and electronics engineering. Different optimization techniques and algorithms such as genetic algorithm (GA), differential evolution (DE), simulated annealing (SA), particle swarm optimization (PSO), artificial bee colony (ABC) algorithm, artificial immune algorithm (AIA), teaching-learning-based optimization (TLBO) algorithm and many other latest meta-heuristic techniques and their applications are discussed. This book will serve as a valuable reference for students, researchers and practitioners and help them in solving a wide range of optimization problems.

This book comprises peer-reviewed papers presented at the International Conference on Advanced Engineering Optimization Through Intelligent Techniques (AEOTIT) 2022. The book combines contributions from academics and industry professionals and covers advanced optimization techniques across all major engineering disciplines like mechanical, manufacturing, civil, automobile, electrical, chemical, computer, and electronics engineering. The book discusses different optimization techniques and algorithms such as genetic algorithm, non-dominated sorting genetic algorithm-II, and III, differential search, particle swarm optimization, fruit fly algorithm, cuckoo search, teaching–learning-based optimization algorithm, grey wolf optimization, Jaya algorithm, Rao algorithms, and many other latest meta-heuristic techniques and their applications. Various multi-attribute decision-making methods such as AHP, TOPSIS, ELECTRE, PROMETHEE, DEMATEL, R-method, fuzzy logic, and their applications are also discussed. This book serves as a valuable reference for students, researchers, and practitioners and helps them in solving a wide range of optimization problems.

This book comprises peer-reviewed papers presented at the 4th International Conference on Advanced Engineering Optimization Through Intelligent Techniques (AEOTIT) 2023. The book combines contributions from academics and industry professionals and covers advanced optimization techniques across all major engineering disciplines like mechanical, manufacturing, civil,  electrical, chemical, computer, and electronics engineering. The book discusses different optimization techniques and algorithms such as genetic algorithm, non-dominated sorting genetic algorithm-II, and III,  particle swarm optimization, gravitational search algorithm, ant lion optimization, dragonfly algorithm, teaching–learning-based optimization algorithm, grey wolf optimization, Jaya algorithm, Rao algorithms, many other latest meta-heuristic techniques, machine learning algorithms, and their applications. Various multi-attribute decision-making methods such as AHP, TOPSIS,  PROMETHEE, desirability function,  SWARA, R-method, BHARAT method, Taguchi method, fuzzy logic, and their applications are also discussed. This book serves as a valuable reference for students, researchers, and practitioners and helps them in solving a wide range of optimization problems.