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This licentiate thesis by Tommy Rosén focuses on analyzing the efficiency of heat and work within a regional energy system in Linköping, Sweden, particularly examining the regional combined heat and power (CHP) plant. The study adopts a top-down, analytical approach to assess the current energy efficiency and identify potential improvements. It evaluates three subsystems: regional electricity production, heat production, and public transport. The research suggests hardware investments in CHP plants could enhance electricity generation efficiency and significantly reduce CO2 emissions. Additionally, it proposes using biogas more effectively and lowering district heating system temperatures to improve system efficiency and reduce emissions. The thesis is aimed at energy system professionals and policymakers, providing insights into practical energy efficiency improvements using real-world data.

Combined cycle power plants. --- Energy consumption.

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Integrated gasification combined cycle power plants. --- Coal gasification. --- Gases --- Purification.

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Coal gasification. --- Combined cycle power plants. --- Charbon --- Centrales à cycle combiné. --- Gazéification.

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Integrated gasification combined cycle power plants. --- Coal gasification. --- Gases --- Purification. --- Gas purification --- Purification of gases --- Coal --- Gasification of coal --- Carbonization --- Distillation, Destructive --- Gas manufacture and works --- Gas producers --- IGCC power plants --- Integrated coal gasification combined cycle power plants --- Power-plants --- Gasification

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Introduces the concept of combined cycles for next generation nuclear power plants, explaining how recent advances in gas turbines have made these systems increasingly desirable for efficiency gains and cost-of-ownership reduction   Promulgates modelling and analysis techniques to identify opportunities for increased thermodynamic efficiency and decreased water usage over current Light Water Reactor (LWR) systems   Examines all power conversion aspects, from the fluid exiting the reactor to energy releases into the environment, with special focus on heat exchangers and turbo-machinery   Provides examples of small projects to facilitate nuanced understanding of the theories and implementation of combined-cycle nuclear plants   This book explores combined cycle driven efficiency of next generation nuclear power plants, and describes how to model and analyze a thermally heated multi-turbine power conversion system operating with atmospheric open air as the working fluid. The included studies are intended to identify paths for future work on next generation nuclear power plants (GEN-IV and beyond), leveraging advances in natural-gas-fired turbines that enable coupling salt-cooled, helium-cooled, and sodium-cooled reactors to a Nuclear Air-Brayton Combined Cycle (NACC). These reactors provide the option of operating base-load nuclear plants with variable electricity output to the grid using natural gas or stored heat to produce peak power. The author describes overall system architecture, components, and detailed modeling results of Brayton-Rankine Combined Cycle power conversion systems and Recuperated Brayton Cycle systems, since they offer the highest overall energy conversion and output efficiencies. With ever-higher temperatures predicted in new generations of power plants, this book’s investigation of potential avenues for thermodynamic efficiency gains will be of great interest to nuclear engineers and researchers, as well as power plant operators and students.

Energy. --- Nuclear Energy. --- Thermodynamics. --- Nuclear Engineering. --- Nuclear engineering. --- Thermodynamique --- Génie nucléaire --- Mechanical Engineering --- Engineering & Applied Sciences --- Nuclear Engineering --- Nuclear power plants --- Combined cycle power plants. --- Design and construction. --- Nuclear energy. --- Power-plants --- Chemistry, Physical and theoretical --- Dynamics --- Mechanics --- Physics --- Heat --- Heat-engines --- Quantum theory --- Atomic energy --- Atomic power --- Energy, Atomic --- Energy, Nuclear --- Nuclear power --- Power, Atomic --- Power, Nuclear --- Force and energy --- Nuclear physics --- Power resources --- Nuclear engineering --- Nuclear facilities