steam generation Articles
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Identification of a VVER horizontal steam generator using recurrent neural networks
Although a large number of simulations have been developed for U-tube steam generators in Western pressurised water reactors, no suitable models yet exist for horizontal steam generators in VVER-type nuclear power plants. This research aims to use RELAP5 thermohydraulic code data to identify a horizontal steam generator via an intelligent structure named Nonlinear Auto Regression with eXogenous ...
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Exergetic destructions in steam generation system: Azzour plant
The aim of this research is to investigate the exergetic destructions of Azzour steam generation system. The exergy destructions (irreversibilities) of the steam generation system were analysed based on actual plant operating data. Three irreversible processes were investigated; combustion, heat transfer and streams mixing processes. Sensitivity analysis was carried out to study the effects of ...
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Multi-stage, in series, steam/water, natural gas Spirax Sarco, Italy 2012 - Case Study
Anaerobic digester genset in food industry. 1 stage of 198C/12 Bar steam generation, left hand side. 2 stages of water heating delivered by 2 standard modules, visible on right of unit. Pipes screwed in from underneath on standard modules; modules can be removed individually. Hinged access doors for easy cleaning, sealing nuts will be replaced by latches on future ...
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Development of one-dimensional computer code DESOPT for thermal hydraulic design of sodium-heated once through steam generators
Once-through Steam Generator (SG) is a critical component of Liquid Metal Fast Breeder Reactor (LMFBR) plant. It is a counter current heat exchanger, in which heat is transferred from the hot sodium flowing on the shell side to water/steam in tube side. High pressure subcooled water enters the SG tube from bottom, gets heated up to saturation, goes through nucleate boiling, dry out and post dry ...
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Hybrid steam boiler from Bosch uses green electricity
Bosch Industriekessel has been offering dedicated process heat solutions for the corrugated cardboard industry worldwide for many decades. In the manufacturing and fabricating of cardboard, a considerable part of the energy demand is for steam generation, among other things for forming and adhesion. When it comes to how to approach their process heat in future, manufacturers are facing various ...
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RELAP5-3D modelling of heat transfer components (intermediate heat exchanger and helical-coil steam generator) for NGNP application
The Next Generation Nuclear Plant project is aimed at the research and development of a helium-cooled high-temperature gas reactor that could generate both electricity and process heat for the production of hydrogen. The heat from the high-temperature primary loop must be transferred via an intermediate heat exchanger to a secondary loop. Using RELAP5-3D, a model was developed for two of the heat ...
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Gas Turbine Steam Generator - Greater Toronto Airports Authority, Ontario, Canada - Project
The Once Through Steam Generator installed at the Toronto Pearson Airport to make the airport self sustainable. This unit produces 75 MW of power, while the total airport consumption is 38 MW. CPF’s scope of supply included the filter house, silencer and baffles, project management and detail drawings. ...
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The 700?C steam turbine power plant ? status of development and outlook
This paper appraises the current development status of the 700?C steam power plant under consideration of process optimisation as well as design aspects of the steam turbine and steam generator. The results for a compact arrangement of the steam turbine and steam generator are also presented. Based on a cycle analysis, a net efficiency between 49.3% and 51.4% can be achieved with the 700?C steam ...
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RELAP5–3D transient modelling for NGNP integrated plant
The High–Temperature Gas–cooled Reactor (HTGR) is designed with outlet temperatures ranging between 750°C and 800°C. These high outlet temperatures enhance the power production efficiency and facilitate a variety of industrial applications. The objective of this study is to understand the response of the primary system to potential transients in the secondary system. For this analysis, the ...
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Experimental investigation of flow-induced vibration in PFBR steam generator sector model
The 500 MWe Prototype Fast Breeder Reactor (PFBR) is under construction at Kalpakkam. It is a liquid metal sodium-cooled pool-type fast reactor with all primary components located inside a sodium pool. Fission heat is transferred to a secondary sodium system in an intermediate heat exchanger, which is in turn transferred to water in a Steam Generator (SG). The PFBR-SG is a vertical shell and ...
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Hazira Power Plant : India’s first Independent Power Plant in Gujarat - Case Study
In October 1997, Essar commissioned India’s first Independent Power Plant (IPP) after the Government of India had liberalised its power policy. Originally conceived to cater only to Essar Steel’s requirements, the plant was later converted to an independent producer with a capacity of 515 MW. Using cutting-edge technology, it was no ordinary power plant. The Hazira IPP was a ...
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Design of boilers with catalytic fluidised bed and their connection to heat supply system
The new advantage of catalytic boiler consisting of the location of heat source near the consumer is described. It imposes some restrictions on the design of such a boiler, which is based on the zonal arrangement approach. The details of such design of boilers with catalytic fluidised bed intended for different purposes (water heating, steam generation, steam superheating) are considered and, in ...
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Sensitivity analysis and thermo-economic optimisation of Steam Injected Gas Turbine cycle design parameters
The purpose of the present work is to apply thermo-economic concepts to a Steam Injected Gas Turbine (STIG) electricity generation system and optimise it to indicate its economical advantages over a simple gas turbine. The system incorporates a combustion chamber, gas turbine, a compressor and a Heat Recovery Steam Generator (HRSG). A detailed sensitivity analysis was also performed to examine ...
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How to Improve Steam Generator Tube Inspection Processes and Prevent Critical Failures
Steam generator tube inspections are a critical component of routine maintenance in the power generation industry. Steam generator tubes are among the most vital safety barriers within pressurized nuclear reactors (PWRs), and underlying defects can degrade the tubing material and damage the entire steam generator, causing severe problems that can endanger crew members and the public. Using ...
By Zetec, Inc
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Solarthermal parabolic trough power plants with integrated storage capacity
Parabolic trough power plants use concentrated direct insulation for steam generation in a Rankine cycle. The fundamentals for direct steam generation in parabolic troughs have been developed in recent years, the feasibility was successfully demonstrated at a solar powered test facility reaching steam temperatures of 400°C at a maximum pressure of 100 bar. Important components for the accelerated ...
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VSEP improves industrial boiler performance and reduces blowdown frequency by a factor of ten
In the steam boiler industry, high purity feed water is required to ensure proper operation of steam generation systems. High purity feed water reduces the use of boiler chemicals due to less frequent blowdown requirements (reducing blowdown frequency by as much as a factor of 10). Lower blowdown frequency also results in lower fuel costs. Scale buildup is reduced due to a smaller concentration ...
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Improving steam power plant efficiency through exergy analysis: effects of altering excess combustion air and stack-gas temperature
Modifications are examined to increase coal-fired steam power plant efficiency by reducing irreversibilities in the steam generator, including decreasing the fraction of excess combustion air, and/or the stack-gas temperature. Overall-plant energy and exergy efficiencies both increase by 1.4% when the fraction of excess combustion air decreases from 0.4 to 0.15, and by 3.5% when the stack-gas ...
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30MWe Combined Heat and Power Tissue Industry - Hayat Group - Case Study
OWNER Hayat Group LOCATION Golcuk, Turkey PRODUCT Taurus 70 Gas Turbines CUSTOMER VALUE Lower Energy Cost Hayat Tissue, the largest manufacturer in Eastern Europe and the Middle East, achieved a decisive competitive advantage thanks to its efficient use of energy in its Golciik plant. Hayat installed a total of four Taurus™ 70 generator sets from Solar Turbines, two on each of its ...
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7.5 MWE Combined Heat and Power University - Harvard University
OWNER Harvard University LOCATION Cambridge, Massachusetts, USA PRODUCT Taurus 70 (7.5 MWe) Gas Turbine CUSTOMER VALUE Sustainability, Reduced Emissions Originally built in 1903, the Blackstone Power Plant at Harvard University was one of the first electric power plants in the United States. During its 110 year history, it has undergone many upgrades to bring it from an old coal burning plant ...
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Assessing and improving the efficiencies of a steam power plant using exergy analysis. Part 2: improvements from modifying reheat pressure
The effect of increasing reheat pressure on the exergy efficiency of a coal-fired steam power plant is investigated. The results show that although the irreversibility rate associated with heat transfer in the steam generator decreases as reheat pressure increases, the overall-plant exergy efficiency decreases, mainly owing to the relatively large decrease in shaft power output. The results ...
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