Steam generator

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  • Tham khảo sách 'steam generator systems: operational reliability and efficiency_1', kỹ thuật - công nghệ, năng lượng phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • This book covers various topics, from thermal-hydraulic analysis to the safety analysis of nuclear power plant. It does not focus only on current power plant issues. Instead, it aims to address the challenging ideas that can be implemented in and used for the development of future nuclear power plants. This book will take the readers into the world of innovative research and development of future plants. Find your interests inside this book!Steam Generator

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  • The book is intended for practical engineers, researchers, students and other people dealing with the reviewed problems. We hope that the presented book will be beneficial to all readers and initiate further inquiry and development with aspiration for better future. The authors from different countries all over the world (Germany, France, Italy, Japan, Slovenia, Indonesia, Belgium, Romania, Lithuania, Russia, Spain, Sweden, Korea and Ukraine) prepared chapters for this book. Such a broad geography indicates a high significance of considered subjects....

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  • State the mechanism for steam generation in a PWR. Using simplified diagrams, identify and explain the purpose of the major components and equipment involved with a PWR. Identify the equipment used to control reactor power.

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  • Spirax Sarco is the recognized industry standard for knowledge and products and for over 85 years has been committed to servicing the steam users worldwide. The existing and potential applications for steam, water and air are virtually unlimited. Beginning with steam generation, through distribution and utilization and ultimately returning condensate to the boiler, Spirax Sarco has the solutions to optimize steam system performance and increase productivity to save valuable time and money.

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  • Recovering useful hydrocarbons from sewage sludge using zirconia-supporting iron oxide catalysts was investigated. Zirconia has activity for decomposing water molecules to generate active oxygen and hydrogen species.

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  • Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS SECTION 4 STEAM GENERATION EQUIPMENT AND AUXILIARIES Determining Equipment Loading for Generating Steam Efficiently 4.2 Steam Conditions with Two Boilers Supplying the Same Line 4.6 Generating Saturated Steam by Desuperheating Superheated Steam 4.7 Determining Furnace-Wall Heat Loss 4.8 Converting Power-Generation Pollutants from Mass to Volumetric Units 4.10 Steam Boiler Heat Balance Determination 4.11 Steam Boiler, Economizer, and AirHeater Efficiency 4.14 Fire-Tube Boiler Analysis and Selection 4.

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  • Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS SECTION 11 HEAT TRANSFER AND HEAT EXCHANGE Selecting Type of Heat Exchanger for a Specific Application 11.1 Shell-and-Tube Heat Exchanger Size 11.4 Boiler-Tube Steam-Generating Capacity 11.20 Heat Exchanger Actual Temperature Difference 11.6 Fouling Factors in Heat-Exchanger Sizing and Selection 11.8 Heat Transfer in Barometric and Jet Condensers 11.10 Selection of a Finned-Tube Heat Exchanger 11.12 Spiral-Type Heating-Coil Selection 11.15 Shell-and-Tube Heat Exchanger Design Analysis 11.

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  • HEAT TRANSFER AND HEAT EXCHANGE Selecting Type of Heat Exchanger for a Specific Application 11.1 Shell-and-Tube Heat Exchanger Size Boiler-Tube Steam-Generating Capacity Heat Exchanger Actual Temperature Difference 11.6 Fouling Factors in Heat-Exchanger Sizing and Selection 11.8 Heat Transfer in Barometric and Jet Condensers 11.10 Selection of a Finned-Tube Heat Exchanger 11.12 Spiral-Type Heating-Coil Selection

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  • The process of generating power depends on several energy-conversion processes, starting with the chemical energy in fossil fuels or the nuclear energy within the atom. This energy is converted to thermal energy, which is then transferred to the working fluid, in our case, steam. This thermal energy is converted to mechanical energy with the

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  • STEAM GENERATION EQUIPMENT AND AUXILIARIES Determining Equipment Loading for Generating Steam Efficiently 4.2 Steam Conditions with Two Boilers Supplying the Same Line 4.6 Generating Saturated Steam by Desuperheating Superheated Steam

    pdf80p phuphong 09-12-2009 57 25   Download

  • Like water, food, and air, electrical energy has become an integral part of daily personal and business lives. People have become so accus- tomed to fl icking a switch and having instant light, action, or communica- tion that little thought is given to the process that produces this electrical energy or how it gets to where it is used. It is unique in that practically all that is produced is not stored but used instantly in the quantities that are needed.

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  • carbon dioxide recovery systems In the fermentation process, the yeast feeds on the wort to produce carbon dioxide and alcohol. This carbon dioxide can be recovered with closed fermentation tanks and used later in the carbonation process. The fermentation process generates about 8-10 lbs/barrel wort (3-4 kg CO2/hl) (Lom and Associates, 1998). Typical CO2 scrubber operations require 2 kg of water per kg of carbon dioxide (Dell, 2001). A large brewery can become self-sufficient for CO2 if a well-designed plant is installed to recover CO2 from fermentation. The U.S.

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  • This section provides requirements for all methods of construction of power, electric, and miniature boilers; high temperature water boilers, heat recovery steam generators, and certain fired pressure vessels to be used in stationary service;...

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  • An integrated gasification process was developed for an Ohio-based kraft pulp mill to produce liquid transportation fuels from biomass and coal. Black liquor byproduct from the pulp mill is co-gasified with coal to generate high quality syngas for further synthesis to dimethyl ether (DME) and/or Fischer-Tropsch fuels. A Texaco gasifier was chosen as the focal point for this design. Whenever possible, energy is recovered throughout to generate heat, steam, and power. Mass and energy balances were performed for individual process components and the entire design.

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  • Coincidentally, in the case of the aforementioned regulations a STAG (STeam And Gas) cycle qualification is/was to provide about 6% of its steam generation to process. At this operating condition, the overall performance approaches that of a conventional STAG power generation cycle. Later in this paper, tables are provided that define GE’s gas turbine and gas engine product characteristics, which in turn illustrate the wide application range and flexibility of these products to support cogeneration applications.

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  • In BWR’s steam bubbles have a negative steam bubbles have a negative reactivity feedback, if the steam fraction reactivity feedback, if the steam fraction increases in the core the reactor power increases in the core the reactor power decreases

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  • Antiquity Simple machines, such as the club and oar (examples of the lever), are prehistoric. More complex engines using human power, animal power, water power, wind power and even steam power date back to antiquity. Human power was focused by the use of simple engines, such as the capstan, windlass or treadmill, and with ropes, pulleys, and block and tackle arrangements; this power was transmitted usually with the forces multiplied and the speed reduced. These were used in cranes and aboard ships in Ancient Greece, as well as in mines, water pumps and siege engines in Ancient Rome.

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  • Another alternative often considered for power augmentation and/or to simply minimize the impact of ambient temperature effects is the use of inlet air chillers. Depending upon power plant economics—in conjunction with ambient temperature and plant load profiles—chillers can afford substantial economic value. This alternative cools the incoming air, thus increasing the output relative to the gain available with an evaporative cooler.

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  • Since the turbine exhaust gas is essentially preheated combustion air, the supplementary-fired HRSG fuel consumption is less than that required for a power boiler providing the same incremental increase in steam generation. Characteristically, the incremental steam production from supplementary firing above that of an unfired HRSG will be achieved at 100% efficiency, based on the lower heat value of the fuel fired. The amount of incremental fuel will be about 10% to 20% less than for a natural-gas-fired power boiler providing the same incremental increase in steam produced.

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