Ahmed Kovacevic – författare

Current concerns with climate change have resulted in greatly increased interest in power recovery from low grade heat sources. This includes both hot fluid streams which can be expanded directly to produce mechanical power and those which act as a source of heat to closed cycle power generation systems. Power recovery from low grate heat by means of screw expanders with a generalised overview of how best to recover power from such sources, based on thermodynamic considerations, which differs to the approach used in classical thermodynamics textbooks and which includes an introductory description of the types of working fluid that are used in systems used to recover power from such sources and the criteria that must be taken into account in their selection. This is followed by a description of the mathematical modelling of twin screw machine geometry. The modelling of the thermodynamics and fluid flow through such machines is then given, together with how this is used to predict their performance. Finally a detailed description is given of systems currently used or projected both for direct expansion of the source fluid and by recovery of heat from it, which includes those which are particularly suited to the use of screw expanders in place of turbines.

A novel generalised approach to the thermodynamics of power recovery from low grade heat systems Gives criteria for working fluid selection Provides details of, and how to model, screw expander geometry Details how to estimate screw expander performance Surveys types of system used for power recovery from low grade heat and where this can be improved by the use of screw expanders.

This book features papers focusing on the implementation of new and future technologies, which were presented at the International Conference on New Technologies, Development and Application, held at the Academy of Science and Arts of Bosnia and Herzegovina in Sarajevo on 23rd–25th June 2022.

This book features papers focusing on the implementation of new and future technologies, which were presented at the International Conference on New Technologies, Development and Application, held at the Academy of Science and Arts of Bosnia and Herzegovina in Sarajevo on 22–24 June 2023.

This book features papers focusing on the implementation of new and future technologies, which were presented at the International Conference on New Technologies, Development and Application, held at the Academy of Science and Arts of Bosnia and Herzegovina in Sarajevo on 22–24 June 2023. It covers a wide range of future technologies and technical disciplines, including complex systems such as Industry 4.0; patents in industry 4.0; robotics; mechatronics systems; automation; manufacturing; cyber-physical and autonomous systems; sensors; networks; control, energy, and renewable energy sources; automotive and biological systems; vehicular networking and connected vehicles; effectiveness and logistics systems, smart grids, nonlinear systems, power, social and economic systems, education, and IoT. This book is oriented towards Fourth Industrial Revolution “Industry 4.0”, which implementation will improve many aspects of human life in all segments and lead to changes in business paradigms and production models. Further, new business methods are emerging, transforming production systems, transport, delivery, and consumption, which need to be monitored and implemented by every company involved in the global market.Chapter “Technologies for Remediation of Polluted Environments: Between Classic Processes and the Challenges of New Approaches” is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.

This new proceedings discusses developments in air, gas and refrigeration compressors, vacuum pumps, and expanders. It is the 13th edition of the International Conference on Compressors and their Systems, a three-day conference organised by the Centre for Compressors Technology at City, University of London in collaboration with, among other, the MEchE, IIR, and IOR.The conference offers a platform to identify current challenges in the field and provide the essential content and direction to shape future research. The International Conference on Compressors and their Systems series began in 1999 as a result of industrial consultation and a need for academic collaboration. Initially, the conference was organised by the Fluid Machinery Group of the Institution of Mechanical Engineers (IMechE) with the support of Holroyd. From 2009, the Centre for Compressor Technology at City, University of London took over its management and the conference is now one of the main conventions,taking place biennially in the UK, becoming world-renowned for its place in industry and academia to gather and discuss a broad range of topical issues related to compressors and compression systems.This year's conference  has the theme "Compressors and Expanders in Future Energy Systems” and will be of interest to researchers and engineers in industry.

This new proceedings discusses developments in air, gas and refrigeration compressors, vacuum pumps, and expanders. It is the 13th edition of the International Conference on Compressors and their Systems, a three-day conference organised by the Centre for Compressors Technology at City, University of London in collaboration with, among other, the MEchE, IIR, and IOR.The conference offers a platform to identify current challenges in the field and provide the essential content and direction to shape future research. The International Conference on Compressors and their Systems series began in 1999 as a result of industrial consultation and a need for academic collaboration. Initially, the conference was organised by the Fluid Machinery Group of the Institution of Mechanical Engineers (IMechE) with the support of Holroyd. From 2009, the Centre for Compressor Technology at City, University of London took over its management and the conference is now one of the main conventions,taking place biennially in the UK, becoming world-renowned for its place in industry and academia to gather and discuss a broad range of topical issues related to compressors and compression systems.This year's conference  has the theme "Compressors and Expanders in Future Energy Systems” and will be of interest to researchers and engineers in industry.

This book features papers focusing on the implementation of new and future technologies, which were presented at the International Conference on New Technologies, Development and Application—Advanced Production Processes and Intelligent Systems held at the Academy of Science and Arts of Bosnia and Herzegovina in Sarajevo on 20–22 June 2024.

This book features papers focusing on the implementation of new and future technologies, which were presented at the International Conference on New Technologies, Development and Application—Advanced Production Processes and Intelligent Systems held at the Academy of Science and Arts of Bosnia and Herzegovina in Sarajevo on 20–22 June 2024.

This book provides a comprehensive overview of the latest technological achievements, their development and practical applications in various industries. In a world that is constantly changing, technology is the driving force behind progress. This book contains papers focusing on the implementation of new and future technologies, which were presented at the International Conference on New Technologies, Development and Application—Advanced Manufacturing Processes and Intelligent Systems, held at the Academy of Sciences and Arts of Bosnia and Herzegovina in Sarajevo from 26 to 28 June 2025. Through clear and concise analyses, the authors explore key innovations such as robotics, artificial intelligence, internet of things, blockchain, biotechnology and sustainable solutions. Furthermore, new business methods are emerging that are transforming production systems, transportation, delivery and consumption, which every company involved in the global market should monitor and implement. The book offers in-depth insight into how these technologies are transforming business, education, health care and everyday life. Whether you're a professional looking to stay up to date with the latest trends, a student exploring future career opportunities, or an enthusiast interested in technological change, this book provides useful information and practical, real-world examples. Don't let the future surprise you—find out how new technologies are shaping the world and how you can apply them today.

This book provides a comprehensive overview of the latest technological achievements, their development and practical applications in various industries. In a world that is constantly changing, technology is the driving force behind progress. This book contains papers focusing on the implementation of new and future technologies, which were presented at the International Conference on New Technologies, Development and Application—Advanced Manufacturing Processes and Intelligent Systems, held at the Academy of Sciences and Arts of Bosnia and Herzegovina in Sarajevo from 26 to 28 June 2025. Through clear and concise analyses, the authors explore key innovations such as robotics, artificial intelligence, internet of things, blockchain, biotechnology and sustainable solutions. Furthermore, new business methods are emerging that are transforming production systems, transportation, delivery and consumption, which every company involved in the global market should monitor and implement. The book offers in-depth insight into how these technologies are transforming business, education, health care and everyday life. Whether you're a professional looking to stay up to date with the latest trends, a student exploring future career opportunities, or an enthusiast interested in technological change, this book provides useful information and practical, real-world examples. Don't let the future surprise you—find out how new technologies are shaping the world and how you can apply them today.

This book provides a comprehensive overview of the latest technological achievements, their development and practical applications in various industries. In a world that is constantly changing, technology is the driving force behind progress. This book contains papers focusing on the implementation of new and future technologies, which were presented at the International Conference on New Technologies, Development and Application—Advanced Manufacturing Processes and Intelligent Systems, held at the Academy of Sciences and Arts of Bosnia and Herzegovina in Sarajevo from 26 to 28 June 2025. Through clear and concise analyses, the authors explore key innovations such as robotics, artificial intelligence, internet of things, blockchain, biotechnology and sustainable solutions. Furthermore, new business methods are emerging that are transforming production systems, transportation, delivery and consumption, which every company involved in the global market should monitor and implement. The book offers in-depth insight into how these technologies are transforming business, education, health care and everyday life. Whether you're a professional looking to stay up to date with the latest trends, a student exploring future career opportunities, or an enthusiast interested in technological change, this book provides useful information and practical, real-world examples. Don't let the future surprise you—find out how new technologies are shaping the world and how you can apply them today.

This proceedings book discusses developments in air, gas and refrigeration compressors, vacuum pumps, and expanders. It is the 14h edition of the International Conference on Compressors and their Systems, a three-day conference organized by the Centre for Compressors Technology at City St George’s, University of London supported by, among others, IMechE, IIR, and IOR.The International Conference on Compressors and their Systems series began in 1999 as a result of industrial consultation and need for academic collaboration. At the time, the conference was organized by the Fluid Machinery Group of the Institution of Mechanical Engineers (IMechE) with support from Holroyd. From 2009, the Centre for Compressor Technology at City, University of London, took over its management and the conference is now one of the main conventions, taking place biennially in the UK, becoming world-renowned for its place in industry and academia to gather and discuss a broad range of topical issues related to compressors and compression systems.The theme of this conference is "Emerging Technologies in Compressors and their Systems".

The first part of Screw Compressors gives a review of recent developments in screw compressor design. The second part presents a generalized mathematical definition of screw machine rotors and describes some well known lobe shapes in detail. The third part treats the mathematical modelling of the thermodynamics and fluid mechanics of compression and expansion processes. This includes discussion of the issues addressed in order to be able to predict the optimum rotor size and speed and built-in volume ratio and, in the case of oil flooded machines, the injection position and jet diameter. The fourth and fifth parts discuss the principles used and describe the application of the analytical procedures and rotor profiling techniques, presented in the earlier chapters, to the design of a number of twin screw compressors, currently manufactured including the examples of combining expansion and compression in the same machine.

This book presents the most up-to-date methods of three-dimensional modeling of the fluid dymanics and the solid-fluid interaction within these machines, which are still being developed. Adding modeling to the design process makes it possible not only to predict flow patterns more accurately, and also to determine distorting effects on rotors and casing of pressure and temperature distribution within the compressor. Examples outline the scope of the applied mathematical model.

The first part of Screw Compressors gives a review of recent developments in screw compressor design. The second part presents a generalized mathematical definition of screw machine rotors and describes some well known lobe shapes in detail. The third part treats the mathematical modelling of the thermodynamics and fluid mechanics of compression and expansion processes. This includes discussion of the issues addressed in order to be able to predict the optimum rotor size and speed and built-in volume ratio and, in the case of oil flooded machines, the injection position and jet diameter. The fourth and fifth parts discuss the principles used and describe the application of the analytical procedures and rotor profiling techniques, presented in the earlier chapters, to the design of a number of twin screw compressors, currently manufactured including the examples of combining expansion and compression in the same machine.