This book indicates the most optimal solutions for the growing civilization problem related to climate change that takes place more and more rapidly on our planet. It is divided into two parts: In the first part, the authors - based on the available analyses and reports on climate change taking place on Earth - present their own point of view in relation to the above issue, while trying to find answers to the following questions: * Why is it so difficult to admit that humans are responsible for the ongoing climate change? * Will climate change destroy life on Earth? * Can science and modern technologies stop this process? In the second part of the book, the authors propose a solution for the advancing climate change, regarding the reduction of CO2 emissions coming mainly from the energy sector. On the basis of scientific achievements and implementations of research institutions in Poland, especially the Institute of Fluid-Flow Machinery of the Polish Academy of Sciences in Gdansk, the book proposes directions of development of the energy transformation in Poland and other countries for which fossil fuels currently make a large contribution to the energy production process and are the main emitter of CO2 to the atmosphere. The book is addressed to citizens, ecologists, climatologists as well as politicians and experts responsible for shaping the climate and energy policy of the country level and also the world.

This book presents the most recent trends and concepts in power engineering, especially with regard to prosumer and civic energy generation. In so doing, it draws widely on his experience gained during the development of steam microturbines for use in small combined heat and power stations based on the organic Rankine cycle (CHP-ORC). Major issues concerning the dynamic properties of mechanical systems, in particular rotating systems, are discussed, and the results obtained when using unconventional bearing systems, presented. Modeling and analysis of radial-flow and axial-flow microturbines are addressed in detail, covering rotor analysis with different bearing systems, simulation modal analysis, and stress analysis. Furthermore, experimental studies of the dynamic properties of microturbine elements are extensively described. Interest in distributed generation and CHP-ORC is growing rapidly, and the potential market for such systems promises to be very large. This book will be of value for engineers and scientists involved in the design, modeling, operation, and diagnostics of various types of turbomachinery, especially steam microturbines.

This book indicates the most optimal solutions for the growing civilization problem related to climate change that takes place more and more rapidly on our planet. It is divided into two parts: In the first part, the authors - based on the available analyses and reports on climate change taking place on Earth - present their own point of view in relation to the above issue, while trying to find answers to the following questions: * Why is it so difficult to admit that humans are responsible for the ongoing climate change? * Will climate change destroy life on Earth? * Can science and modern technologies stop this process? In the second part of the book, the authors propose a solution for the advancing climate change, regarding the reduction of CO2 emissions coming mainly from the energy sector. On the basis of scientific achievements and implementations of research institutions in Poland, especially the Institute of Fluid-Flow Machinery of the Polish Academy of Sciences in Gdansk, the book proposes directions of development of the energy transformation in Poland and other countries for which fossil fuels currently make a large contribution to the energy production process and are the main emitter of CO2 to the atmosphere. The book is addressed to citizens, ecologists, climatologists as well as politicians and experts responsible for shaping the climate and energy policy of the country level and also the world.