Relevant bibliographies by topics / Electric power-plants – Dust control

Academic literature on the topic 'Electric power-plants – Dust control'

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Published: 4 June 2021
Last updated: 6 February 2022

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Journal articles on the topic "Electric power-plants – Dust control"

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Vukosavic, Slobodan, Nikola Popov, and Zeljko Despotovic. "Power electronics solution to dust emissions from thermal power plants." Serbian Journal of Electrical Engineering 7, no. 2 (2010): 231–52. http://dx.doi.org/10.2298/sjee1002231v.

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Thermal power stations emit significant amounts of fly ash and ultra fine particles into the atmosphere. Electrostatic precipitators (ESP) or electro filters remove flying ashes and fine particles from the flue gas before passing the gas into the chimney. Maximum allowable value of dust is 50 mg/m3 and it requires that the efficiency of the ESPs better than 99 %, which calls for an increase of active surface of the electrodes, hence increasing the filter volume and the weight of steel used for the filter. In previous decades, electrostatic precipitators in thermal power plants were fed by thyristor controlled, single phase fed devices having a high degree of reliability, but with a relatively low collection efficiency, hence requiring large effective surface of the collection plates and a large weight of steel construction in order to achieve the prescribed emission limits. Collection efficiency and energy efficiency of the electrostatic precipitator can be increased by applying high frequency high voltage power supply (HF HV). Electrical engineering faculty of the University of Belgrade (ETF) has developed technology and HF HV equipment for the ESP power supply. This solution was subjected to extensive experimental investigation at TE Morava from 2008 to 2010. High frequency power supply is proven to reduce emission two times in controlled conditions while increasing energy efficiency of the precipitator, compared to the conventional thyristor controlled 50Hz supply. Two high frequency high voltage unit AR70/1000 with parameters 70 kV and 1000 mA are installed at TE Morava and thoroughly testes. It was found that the HF HV power supply of the ESP at TE Morava increases collection efficiency so that emission of fine particles and flying ashes are halved, brought down to only 50 % of the emissions encountered with conventional 50 Hz thyristor driven power supplies. On the basis of this study, conclusion is drawn that the equipment comprising HF HV supplies are the best solution for new ESP installations, as well as for the reconstruction of existing facilities. The paper describes the topology of the HF HV power supply, power management and controls, and brings the most important details of the implementation. It is found that the HF HV solution achieves several significant improvements over the conventional thyristor system. It is possible to provide more precise control of the ESP parameters such as the output voltages and currents. It is also possible to make a rapid increase or decrease in voltage and to effectuate a very fast response to load changes. Due to this advantages it is possible to suppress the supply quickly in the case of sparking, reducing the spark energy and the quantity of ionized gasses produced by the electric arc. Reduction in the spark energy is up to 10 times compared to conventional thyristors solution. This means that the erosion of the electrode system is significantly reduced, and that the quality of the collection plates is preserved for much longer periods. At the same time, lower quantity of ionized gasses produced by the spark contribute to much shorter deionization intervals, required to quit sparking and evacuate charged particles in order to reinstate the voltage and proceed with the operation. In addition, HF HV power supply provides a significant reduction in size and weight of the complete ESP installation, hence reducing the tons of steel that has to be built in. Therefore, the HF HV power supply may be the key instrument to reducing the cost of the dedusting ecological equipment. Besides, size and weight reduction leads to cost savings of installation and maintenance. According to estimates, savings in steel may reach 30%, contributing to the overall cost savings of roughly 20%. Within this paper, in addition to describing the AR70/1000 unit topology and principles of operation, the paper presents the results and measurements obtained during extensive experimental investigations wherein performances of 50 Hz based thyristor units with T/R sets are compared to HF HV power supply.
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Wang, Zhongwei, Zhi-gang Su, Xiaojin Zhu, and Yongsheng Hao. "Dynamic Models of Dry Electrostatic Precipitator in a 1000MW Coal-fired Plant." E3S Web of Conferences 136 (2019): 02006. http://dx.doi.org/10.1051/e3sconf/201913602006.

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Dynamic model is the foundation to achieve feedback control of Electrostatic Precipitator (ESP) so as to reduce dust emission concentration and high power consumption. This paper investigates the dynamic modeling of outlet dust concentration of a dry electric precipitator with five electric field structure in a 1000MW power plant. The secondary current of the high-frequency power supply of the last two electric fields of the ESP are taken as control inputs, whereas the outlet dust concentration is taken as output. With increasingly stepping the secondary current at four typical load points, experimental data of outlet dust concentration are collected to identify parameters of dynamic models after fixing its structure based on an immune genetic algorithm. The experimental results suggest that the established dynamic models can capture the real dynamics of ESP and have high accuracy.
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Popa, Gabriel Nicolae. "About Improving Collection Efficiency for Industrial Plate-Type Electrostatic Precipitator." Advanced Engineering Forum 8-9 (June 2013): 165–74. http://dx.doi.org/10.4028/www.scientific.net/aef.8-9.165.

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Plate-type electrostatic precipitators are the largest and most used industrial dusts control, most applications are in the production of electricity (thermoelectric power plants). In many industrial applications, plate-type precipitators have three sections and silicon-controlled rectifier power supplies type. Although, the collection efficiency obtained by these type of precipitators are more than 95%, most of the dust particles with diameter less than 10 μm remain un-collected. To improve the collection efficiency different electrical and/or mechanical options can be used. To improve the collection efficiency of industrial plate-type precipitators, the paper presents two practical options. The first solution would be replacing the power supplies silicon-controlled rectifier - with other special power supplies (intermittent power supplies, high frequency power supplies) depending on the dust resistivity; the second solution would be to add a new section at precipitator an expensive solution, usually the last. The technological and electrical sizes, simulated and measured, are presented for the proposed solutions.
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Sengupta, Saheli, Aritra Ghosh, Tapas K. Mallick, Chandan Kumar Chanda, Hiranmay Saha, Indrajit Bose, Joydip Jana, and Samarjit Sengupta. "Model Based Generation Prediction of SPV Power Plant Due to Weather Stressed Soiling." Energies 14, no. 17 (August 26, 2021): 5305. http://dx.doi.org/10.3390/en14175305.

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Solar energy is going to be a major component of global energy generation. Loss due to dust deposition has raised a great concern to the investors in this field. Pre-estimation of this reduced generation and hence the economic loss will help the operators’ readiness for efficient and enhanced economic energy management of the system. In an earlier article, a physics–based model is proposed for assessment of dust accumulation under various climatic conditions which is validated by data of a single location. In this paper, the universality of this model is established and is used to demonstrate the effect of generation loss due to dust deposition and of cleaning. Variation in the soiling pattern due to climatic covariates has also been studied. Generation loss is calculated for Solar Photovoltaic power plants of different capacities at various locations in India. Finally this model has also been extended to predict the generation accounting for the soiling loss in Photovoltaic system. All the calculated and predicted results are validated with the measured values of the above plants.
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Wang, Cheng Fu, and Xiao Dong Shi. "Harm and Trapping Strategy Research on Tiny Dusts PM2.5." Applied Mechanics and Materials 88-89 (August 2011): 503–8. http://dx.doi.org/10.4028/www.scientific.net/amm.88-89.503.

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The fine dust PM2.5 can suspend in the air for a long period, penetrate human body's defense system, and deposit directly into the alveoli, where does harm to health. Because of the serious pollution and the trapping difficulty of ordinary dust removal technologies, PM2.5 has become the focus of international air pollution control. To effectively capture PM2.5, detailed analysis of the creation of PM2.5 have been done, and different trapping strategies specific to different creation sources have been posed in this paper. Low collection efficiency of PM2.5 can be expected to be solved by the electrostatic precipitator, which applies the charging and coagulation for fine dust, penetrating-type electric field, high frequency DC power supply, combined with reduced voltage optimization of the rapping mode, etc.
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Cichowicz, Robert, and Maciej Dobrzański. "Modeling Pollutant Emissions: Influence of Two Heat and Power Plants on Urban Air Quality." Energies 14, no. 17 (August 24, 2021): 5218. http://dx.doi.org/10.3390/en14175218.

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Large industrial plants, power plants, and combined heat and power plants are popularly believed to be the main sources of point emissions, affecting both local and global air quality. This is because these installations emit significant amounts of pollutants at high altitudes every year. In this study, we investigate the impact of two solid fuel (hard coal)-fired CHP plants located within the urban agglomeration on the air quality of the city of Lodz in Poland (Europe). We used an OPA03 computer software to model the spatial distribution of pollutants. The results show that the annual average concentrations of pollutants were highest at an altitude of 25 m above ground level and decreased at lower measurement heights. The concentrations did not exceed permissible levels, reaching only 4% of national and international regulatory limits. We also made field measurements during the winter heating period, using an unmanned aerial vehicle (UAV) equipped with sensors to map the distributions of dust and gas pollutants in the areas with the highest concentrations of emissions from the two heat and power plants. Overall, the field measurements confirmed that it is not high-altitude emissions that have the greatest impact on local air quality.
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Et. al., Tawseef Ahmad Wani,. "A Review of Fuzzy Logic and Artificial Neural Network Technologies Used for MPPT." Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 2 (April 11, 2021): 2912–18. http://dx.doi.org/10.17762/turcomat.v12i2.2327.

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Solar electric power generating stations play a major role in meeting the growing demand for electric power. These generating stations make use of solar photovoltaic (PV) panels to perform the conversion of solar energy to electric energy. However, the solar panel output is highly unpredictable because the output is a function of number of factors; some of which are not in the control of humans like the weather conditions, and the output is also a function of the age of PV panel, dust and other debris collected on the panel, direction and angle of elevation and so on. The solar panels exhibit a low efficiency. Currently, a lot of research is going on to overcome these issues. This paper represents a review of two modern techniques used in solar photovoltaic systems which enhance the extraction of maximum output power in an efficient manner. The Artificial Intelligence Based MPPT Techniques for PV Applications, and, a Forecasting System of Solar PV Power Generation using Wavelet Decomposition and Bias- compensated Random Forest are reviewed and compared in this paper.
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Gazda-Grzywacz, Magdalena, Łukasz Winconek, and Piotr Burmistrz. "Carbon Footprint for Mercury Capture from Coal-Fired Boiler Flue Gas." Energies 14, no. 13 (June 25, 2021): 3844. http://dx.doi.org/10.3390/en14133844.

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Power production from coal combustion is one of two major anthropogenic sources of mercury emission to the atmosphere. The aim of this study is the analysis of the carbon footprint of mercury removal technologies through sorbents injection related to the removal of 1 kg of mercury from flue gases. Two sorbents, i.e., powdered activated carbon and the coke dust, were analysed. The assessment included both direct and indirect emissions related to various energy and material needs life cycle including coal mining and transport, sorbents production, transport of sorbents to the power plants, and injection into flue gases. The results show that at the average mercury concentration in processed flue gasses accounting to 28.0 µg Hg/Nm3, removal of 1 kg of mercury from flue gases required 14.925 Mg of powdered activated carbon and 33.594 Mg of coke dust, respectively. However, the whole life cycle carbon footprint for powdered activated carbon amounted to 89.548 Mg CO2-e·kg−1 Hg, whereas for coke dust this value was around three times lower and amounted to 24.452 Mg CO2-e·kg−1 Hg. Considering the relatively low price of coke dust and its lower impact on GHG emissions, it can be found as a promising alternative to commercial powdered activated carbon.
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Chang, Chiawei, Yishun Chen, Litsung Sheng, and Shusan Hsiau. "A New Approach of Dedusting for IGCC by a Two-Stage Moving Granular Bed Filter." Energies 14, no. 9 (April 28, 2021): 2534. http://dx.doi.org/10.3390/en14092534.

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We propose a dust removal technology in which a two-stage moving granular bed filter was employed using coarse and fine filtering granules. The pressure drop, collection efficiency, and dust particulate size distributions were investigated using various mass flow rates for coarse and fine granules at room temperature. In addition, the ratio of mass consumption was used to reveal the actual mass flow. The ratio of mass consumption influenced the pressure drop, collection efficiency, and dust particulate size distributions. Particulates larger than 1.775 μm were removed by the filter. Our results showed that a mass flow of 330 g/min for coarse granules and a mass flow of 1100 g/min for fine granules provided optimal collection efficiency and particulate size distribution. The proposed design can aid the development of high-temperature systems in power plants.
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Randeberg, Erlend, and Rolf K. Eckhoff. "Initiation of dust explosions by electric spark discharges triggered by the explosive dust cloud itself." Journal of Loss Prevention in the Process Industries 19, no. 2-3 (March 2006): 154–60. http://dx.doi.org/10.1016/j.jlp.2005.05.003.

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Dissertations / Theses on the topic "Electric power-plants – Dust control"

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Yuen, Albert Wai Ling Materials Science &amp Engineering Faculty of Science UNSW. "Collector current density and dust collection in wire-plate electrostatic precipitators." Awarded by:University of New South Wales. Materials Science and Engineering, 2006. http://handle.unsw.edu.au/1959.4/28274.

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Even minimal improvements in particle collection efficiency of electrostatic precipitators significantly reduce dust emission from fossil-fuelled power stations and reduce pollution. Yet current designs rely on the Deutsch collection theory, which was developed for tubular precipitators and has been applied to wire-plate precipitators on the assumption that the inter-electrode electric fields at the same discharge distance in both were similar. Differences in geometry and associated collector electric fields and current density non-uniformity have not been taken into account, although the collector electric field and current density of the wire-plate precipitator are not uniform. And observations show that precipitated dust patterns and the distribution of collector current density are interrelated. Investigations revealed a simple square law relationship between the collector electric field and the collector current density in the space charge dominated coronas. Applying this relationship to the Deutsch collection theory led to a current-density-based collection formula that takes into account the non-uniform collector current density distribution. The current-density-based collection formula is then used to assess the impact of collector current density on collection efficiency, the results closely following published measurements. Applying the current-density-based collection formula to estimate the dust accumulation shows that most of the dust accumulates at collector locations facing the corona wires. The effect of the non-uniform precipitated dust layer on collection performance is assessed using the distributed corona impedance - the ratio of the inter-electrode voltage and the non-uniform collector current. Re-distribution of the collector current profile as dust builds up is also compatible with published measurements. Finally this is applied to optimize the wire-plate precipitator collection performance. This shows that optimal collection performance is obtained with the wire-wire spacing less than the wire-plate distance, once again confirming published experimental results. This is the first analytical approach to show better collection performance can be achieved at the ratio of wire-wire spacing/wire-plate distance not equal to unity, which has been the standard industry practice since 1960.
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Khaliq, Abdul. "Preventive control for the attainment of a dynamically secure power system." Diss., Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/13893.

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ABDULLA, ABDULLA I. M. "SOME NEW TECHNIQUES FOR THE LOAD FREQUENCY CONTROL OF MULTI-AREA POWER SYSTEMS." Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/183902.

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In this dissertation, the problem of multi-area load frequency control in large power systems is investigated. The load frequency control problem is concerned with the minimization of the deviations in the frequencies of the different areas and in the tie line power exchange between these areas, and is a problem of major importance in the satisfactory operation of large power systems. Some new techniques for designing load frequency control systems are presented through the use of concepts from singular perturbation and hierarchical system theory. To provide appropriate vehicles for the design of the new control systems, state variable models for power systems are developed. These models progress from a two-area interconnected power system model to large scale models comprising of N areas. Two centralized state feedback schemes are proposed for the load frequency control by utilizing the separation of the system models into two time scales. In the first scheme, composite controls and reduced order controls are developed to meet the required performance specifications by. The second scheme is obtained by using the theory of variable structure systems where the existence of a sliding regime leads to the design of a single discontinuous state feedback controller that meets the performance requirements. In order to further improve the performance of the closed loop system, a two level hierarchical control scheme is developed. This consists of a set of local controllers that are designed using either the singular perturbation approach or the variable structure system approach as before and a set of global control functions provided by a higher level controller that attempts to coordinate the local controllers. The interaction prediction principle is used as a tool in the design of the global controller. The performance of the presently developed control schemes is examined in detail for the illustrative cases of a two-area and a three-area power system. From this analysis, it is shown that these controllers provide an improved performance compared to the existing control schemes in reducing the frequency and tie line power deviations.
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Bø, Torstein Ingebrigtsen. "Dynamic Model Predictive Control for Load Sharing in Electric Power Plants for Ships." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for marin teknikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18749.

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The main contribution of this thesis is an investigation of model predictive control(MPC) for marine diesel electric power plants. Recommendations and new ideasfor further development are emphasized.The motivation of the thesis is to develop a controller for diesel electric power plantsthat can control the plant in a more efficient way. This includes reducing wear andtear, fuel consumption, and emissions. However, the safety aspect is always themost important factor and must be handled with care.The case plant to be studied is a diesel electrical power plant consisting of severaldiesel driven generators (genset). These gensets produce electrical power to servethe electrical demands on a marine vessel. The consumers can be propulsion units,heave compensators, drilling equipment, and hotel loads. These highly dynamicconsumers are large compared with the producers. This gives unwanted fluctuationof frequency. In some vessels this effect is so large that more gensets are requiredfor transients than for peak demands. This can be avoided with better controlstrategies.The controller developed in this thesis adjusts the local controllers on the dieselengines. The objective is to keep the genset at a given load sharing, while keepingthe frequency within rules and regulations. In addition is the plant controlled to astate where a single point failure does not lead to blackout.Blackout is prevented by calculating a failure case in addition to the normal case.The failure case may be a disconnection of the largest genset on the power bussegment. The case is calculated in the controller to make sure that if the caseoccurs the plant is able to handle the failure without a blackout. A normal case,where everything goes as normal, is calculated to optimize the current operation.The controller is verified by simulation done in MATLAB/Simulink. Theimplemented controller performs well during all of the simulated cases. However,the predictions made by the controller are in some cases conservative. This is dueto the choice of the fuel rate constraints. Lastly, suggestions for how to improvethe performance of the controller are included. The most important suggestionsare to include a model of the turbocharger in the control plant model and toinclude more failure cases.
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Du, Zhaobin. "Area COI-based slow frequency dynamics modeling, analysis and emergency control for interconnected power systems." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/B4175783X.

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Yilmaz, Oguz. "Participation Of Combined Cycle Power Plants To Power System Frequency Control: Modeling And Application." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607228/index.pdf.

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This thesis proposes a method and develops a model for the participation of a combined cycle power plant to power system frequency control. Through the period of integration to the UCTE system, (Union for Coordination of Transmission of Electricity in Europe) frequency behavior of Turkey&rsquo
s grid and studies related to its improvement had been a great concern, so is the reason that main subject of my thesis became as &ldquo
Power System Frequency Control&rdquo
. Apart from system-wide global control action (secondary control)
load control loops at power plants, reserve power and its provision even at the minimum capacity generation stage, (primary control) are the fundamental concerns of this subject. The adjustment of proper amount of reserve at the power plants, and correct system response to any kind of disturbance, in the overall, are measured by the quality of the frequency behaviour of the system. A simulator that will simulate a dynamic gas turbine and its control system model, together with a combined cycle power plant load controller is the outcome of this thesis.
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Thapa, Ravi Chandra. "Damping Interarea Oscillations in Power Systems with DFIG." Thesis, North Dakota State University, 2011. https://hdl.handle.net/10365/29173.

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With rapid depletion of fossil fuels and increasing environmental concerns, the trend to capture renewable energy, especially through wind energy resources, is increasing. The doubly fed induction generator (DFIG) is the most widely used generator for wind energy conversion because of its various advantages over other types of generators. In a DFIG, the rotor is fed through back to back converters via slip rings. The converters enable the generation control. This control property can be used to support reliable operation of a grid network system. Interarea oscillation has been a major factor in limiting power transfers in interconnected power systems. Poorly damped modes can trigger oscillatory instability, potentially leading to cascading blackouts in such systems. We consider a two-area system where DFIG based wind generation is integrated with conventional synchronous generators. A simple controller is proposed for the DFIG to improve damping of interarca oscillations. To support the proposition, case studies are conducted in Matlab/Simulink. The effectiveness of the proposed controller is then analyzed by eigenvalue analysis and verified with time domain simulation results. The results show that a properly tuned controller can increase the damping of dominant oscillatory mode by nearly 5% while improving the area transfer by about 200 MW of wind power. The results further show that with the proposed control strategy, damping of dominant oscillatory mode increased by more than 10%.
North Dakota State University. Graduate School
North Dakota State University. Department of Electrical and Computer Engineering
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Fleshman, Muller Eunamia. "Development of a supplier quality assessment system in Eskom." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97323.

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Thesis (MBA)--Stellenbosch University, 2015.
ENGLISH ABSTRACT: Eskom, the South Africa and trans-Africa electrical power utility, has a capacity expansion project that is estimated to cost roughly R340 billion. The programme is anticipated to continue through 2018. Eskom will be contracting with a multitude of suppliers and it is imperative that the projects delivered under the capacity expansion programme meet Eskom’s required quality standards. The question then arises whether the set quality standards are sufficiently comprehensive to provide confidence that suppliers will achieve high quality standards. This aim of this research was to examine supplier assessment programmes to determine the criteria that will best provide supplier assurance. The researcher consulted a vast range of literature available on supplier quality assessment programmes. From the literature consulted, there appeared to be some recurring themes from the range of assessment tools. It also becomes apparent that the assessment tool cannot only focus on a quality system, but a balance of strategic and operational focus was needed to fully understand suppliers’ ability to deliver. One of the key considerations was establishing longer-term collaborative relationships with key suppliers. Long-term relations encourage trust, transparency and innovation. It was equally important to ensure that operational assessments provided insight on suppliers’ capability. Based on the literature reviewed, a proposed framework was tested against the current methodology for supplier evaluation. From these comparisons, some gaps were identified and recommendations were suggested to improve the supplier evaluation programme.
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Du, Zhaobin, and 杜兆斌. "Area COI-based slow frequency dynamics modeling, analysis and emergency control for interconnected power systems." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B4175783X.

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Tomilson, Andrew G. "Frequency and voltage control of a high-penetration, no-storage wind-diesel system." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0023/MQ36186.pdf.

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Books on the topic "Electric power-plants – Dust control"

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Camacho, E. F. Advanced control of solar plants. Berlin: Springer, 1997.

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Camacho, Eduardo F. Advanced Control of Solar Plants. London: Springer London, 1997.

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Knowles, J. B. Simulation and control of electrical power stations. Taunton, Somerset, England: Research Studies Press, 1990.

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Power and process control systems: For the plant engineer and designer. New York: McGraw Hill, 1991.

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Lamine, Mili, ed. Operation and control of electric energy processing systems. Hoboken, N.J: Wiley, 2009.

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Momoh, James A., and Lamine Mili. Operation and control of electric energy processing systems. Hoboken, N.J: Wiley, 2009.

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Knowles, J. B. Nuclear electric power: Safety, operation and control aspects. Hoboken, New Jersey: John Wiley & Sons Inc., 2013.

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Morris, David. Seeing the Light: Regaining Control of Our Electricity System. Minneapolis, MN: Institute for Local Self-Reliance, 2001.

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Morris, David. Seeing the light: Regaining control of our electricity system. Minneapolis, MN: Institute for Local Self-Reliance, 2001.

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Lindner, Ewald Hans. Models for the optimal control of storage power plants. Wien: VWGÖ, 1987.

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Book chapters on the topic "Electric power-plants – Dust control"

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Chang, Ramsay. "The Electric Power Research Institute's Program to Control Mercury Emissions from Coal-Fired Power Plants." In Mercury Control, 205–24. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2014. http://dx.doi.org/10.1002/9783527658787.ch12.

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Cuénod, M., H. Regli, and M. Schurtenberger. "MICROCOMPUTER AND COMPUTER APPLICATIONS IN THE HYDRO-ELECTRIC POWER PLANTS KARAKAYA AND ATATURK." In Microcomputer Application in Process Control, 143–49. Elsevier, 1987. http://dx.doi.org/10.1016/b978-0-08-034340-2.50028-5.

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WISE, M., and J. DOOLEY. "Baseload and peaking economics and the resulting adoption of a carbon dioxide capture-and-storage system for electric power plants." In Greenhouse Gas Control Technologies 7, 303–11. Elsevier, 2005. http://dx.doi.org/10.1016/b978-008044704-9/50031-8.

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Kaliannan, Jagatheesan, Anand Baskaran, and Nilanjan Dey. "Automatic Generation Control of Thermal-Thermal-Hydro Power Systems with PID Controller Using Ant Colony Optimization." In Renewable and Alternative Energy, 761–78. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-1671-2.ch023.

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In this work, Artificial Intelligence (AI) based Ant Colony Optimization (ACO) algorithm is proposed for Load Frequency Control (LFC) of interconnected multi–area hydrothermal power systems. Area 1&2 are thermal power systems and area 3 is a hydro power system, all the areas are interconnected through the appropriate tie-line. Thermal and hydro power plants are applied with reheat turbine and electric governor respectively. Investigated power system initially applied with conventional Proportional-Integral (PI) controller and controller parameters are optimized by using trial and error method considering Integral Time Absolute Error (ITAE) objective function. After that, the system is equipped with Proportional – Integral – Derivative (PID) controller and controller parameters are optimized by using ACO algorithm with ITAE objective function. The superiority of the proposed algorithm has been demonstrated by comparing conventional controller. Finally, The Simulation results of multi-area power system prove the effectiveness of the proposed optimization technique in LFC scheme and show its superiority over conventional PI controller.
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Zeeshan, Nukshab, Nabila, Ghulam Murtaza, Zia Ur Rahman Farooqi, Khurram Naveed, and Muhammad Usman Farid. "Atmospheric Pollution Interventions in the Environment: Effects on Biotic and Abiotic Factors, Their Monitoring and Control." In Agrometeorology [Working Title]. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.94116.

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Atmosphere is polluted for all living, non-living entities. Concentrations of atmospheric pollutants like PM2.5, PM10, CO, CO2, NO, NO2, and volatile organic compounds (VOC) are increasing abruptly due to anthropogenic activities (fossil fuels combustion, industrial activities, and power generation etc.). These pollutants are causing soil (microbial diversity disturbance, soil structure), plants (germination, growth, and biochemistry), and human health (asthma, liver, and lungs disorders to cancers) interventions. All the effects of these pollutants on soil, plants, animals, and microbes needed to be discussed briefly. Different strategies and technologies (HOPES, IOT, TEMPO and TNGAPMS) are used in the world to reduce the pollutant emission at source or when in the atmosphere and also discussed here. All gaseous emissions control mechanisms for major exhaust gases from toxic to less toxic form or environmental friendly form are major concern. Heavy metals present in dust and volatile organic compounds are converted into less toxic forms and their techniques are discussed briefly.
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Whiteman, C. David. "Air Pollution Dispersion." In Mountain Meteorology. Oxford University Press, 2000. http://dx.doi.org/10.1093/oso/9780195132717.003.0021.

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Air pollutants are harmful airborne substances (solids, liquids, or gases) that, when present in high-enough concentrations, threaten human health or welfare, harm vegetation, animals, or structures, or affect visibility. Visibility alone is not, however, a reliable indicator of the presence of pollutants. A visible plume of condensed water vapor from an industrial cooling tower decreases solar radiation and increases the frequency of fog and icy road conditions near the cooling tower, but it is not an air pollution plume because it is composed entirely of water. In contrast, an industrial pollutant plume may be nearly invisible after the gross particulate matter has been removed by pollution control equipment, but it may still contain large quantities of pollutant gases. Air pollutants can come from either natural or anthropogenic (human) sources. The distinction between the two categories is not always clear. Natural emissions include ash and dust from volcanoes, certain highly volatile chemicals from forests, aeroallergens such as ragweed pollen, wind-entrained dust from natural land surfaces, and smoke and ash from wildfires. Wind-entrained dust can, however, come from roadways or land surfaces that have been disturbed by man, some aeroallergens come from plant species introduced to a new habitat by man, and many fires are prescribed fires —natural or man-made fires (whether accidental or deliberate) that are allowed to burn in order to meet forest or land management objectives. Pollutants can be emitted directly into the atmosphere (primary pollutants] or produced in the atmosphere (secondary pollutants) as a result of chemical or physical transformations of primary pollutants when exposed to other components of air, including other pollutants or water vapor. Examples of transformations include the clumping or coagulation of small particulates into larger particles and the conversion of sulfur dioxide gas emitted from coal-fired power plants to particulate sulfates under humid conditions or to acid rain droplets if clouds are present. Some secondary pollutants, such as photochemical smog or ozone, result from photochemical reactions, that is, chemical reactions that occur only in the presence of solar radiation. Pollutants may come from point, area, or line sources; the emissions may be continuous or intermittent; and the source strength may be variable or constant.
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Conference papers on the topic "Electric power-plants – Dust control"

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Zhang, Yirui, and Kun Zhang. "Design of Construction Site Dust Detection System Based on UAV Flying Platform." In 2021 International Conference on Control Science and Electric Power Systems (CSEPS). IEEE, 2021. http://dx.doi.org/10.1109/cseps53726.2021.00036.

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Bierie, Greg. "Leading Edge Conveyor Technologies to Improve Coal Handling." In ASME 2007 Power Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/power2007-22044.

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This paper looks at a two new conveyor technologies that offer the opportunities for significant improvement in the handling of coal in power plants, and in bulk transportation facilities, and other coal-handling operations. This first technology is “flow-engineered” chutes. Based on material testing and flow studies, these chutes allow the development of transfer chute systems that provide better control, continuous coal flow at higher capacities, and dramatic reductions in material spillage and the release of airborne dust. By regulating the coal flow path of movement, these engineered chutes improve the load placement on the belt, eliminate chute blockages, reduce safety hazards, and minimize maintenance costs. The second leading edge system is air-supported conveyors. Air supported conveyors are now seeing increasing acceptance in coal handling applications in power plants. This is due to the advantages they offer to coal-handling, including high efficiency and low maintenance. This technology also provides a reduction in the release of coal dust, as the carrying side of the conveyor is completely enclosed. This paper will discuss recent installations of these systems in coal handling facilities. In particular, it will feature the engineering and installation of flow-engineered chute systems at AmerenUE’s Meramec and Rush Island Electric Generating Stations, to improve conveyor system performance, while reducing dust as much as 98%. He will also discuss recent application of air-supported conveyor systems in coal handling systems, and discuss the benefits of the application of conveyors combining both “leading edge” systems.
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Beaulieu, H., and A. Siert. "188. Exposure Assessment of Maintenance Operations of Air Pollution Control Devices During “4Outages” of Electric Power Generation Facilities: the Components of “Fly Ash” Dust." In AIHce 1997 - Taking Responsibility...Building Tomorrow's Profession Papers. AIHA, 1999. http://dx.doi.org/10.3320/1.2765311.

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Krigmont, Henry V. "Multi-Stage Collector Design and Applications." In International Joint Power Generation Conference collocated with TurboExpo 2003. ASMEDC, 2003. http://dx.doi.org/10.1115/ijpgc2003-40021.

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The Multi Stage Collector (MSC™) concept for ultra-fine particulate control not only retains the best advantages of current state-of-the-art technology but also makes significant improvements. The new MSC™ design provides a synergistic combination of both single- and two-stage electrostatic precipitation while incorporating an additional collector-stage by filtering the gas exiting the collector through a barrier collector-zone. This arrangement ensures that essentially all dust would be detained in this final stage. The MSC™ contains multiple narrow and wide zones formed by a plurality of parallel corrugated plates. Enclosed in the narrow zones are discharge electrodes. These electrodes provide a non-uniform electric field leading to corona discharge. The corona discharge causes particulate matter in the gas flow to become charged. Wide regions contain barrier filters thus creating the two-stage precipitator with relatively uniform electric field. In these regions, particles are collected on both plates and on the porous barrier elements, which also act as the final filtering stage. Results of the applications analyses and future development work are discussed. The gas flow analyses with an aid of the CFD model are presented below.
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DiCampli, James. "Combined Heat and Power: Gas Turbine Operational Flexibility." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-94467.

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Combined heat and power (CHP) is an application that utilizes the exhaust heat generated from a gas turbine and converts it into a useful energy source for heating & cooling, or additional electric generation in combined cycle configurations. Compared to simple-cycle plants with no heat recovery, CHP plants emit fewer greenhouse gasses and other emissions, while generating significantly more useful energy per unit of fuel consumed. Clean plants are easier to permit, build and operate. Because of these advantages, projections show CHP capacity is expected to double and account for 24% of global electricity production by 2030. An aeroderivative power plant has distinct advantages to meet CHP needs. These include high thermal efficiency, low cost, easy installation, proven reliability, compact design for urban areas, simple operation and maintenance, fuel flexibility, and full power generation in a very short time period. There has been extensive discussion and analyses on modifying purge requirements on cycling units for faster dispatch. The National Fire Protection Association (NFPA) has required an air purge of downstream systems prior to startup to preclude potentially flammable or explosive conditions. The auto ignition temperature of natural gas fuel is around 800°F. Experience has shown that if the exhaust duct contains sufficient concentrations of captured gas fuel, and is not purged, it can ignite immediately during light off causing extensive damage to downstream equipment. The NFPA Boiler and Combustion Systems Hazards Code Committee have developed new procedures to safely provide for a fast-start capability. The change in the code was issued in the 2011 Edition of NFPA 85 and titled the Combustion Turbine Purge Credit. For a cycling plant and hot start conditions, implementation of purge credit can reduce normal start-to-load by 15–30 minutes. Part of the time saving is the reduction of the purge time itself, and the rest is faster ramp rates due to a higher initial temperature and pressure in the heat recovery steam generator (HRSG). This paper details the technical analysis and implementation of the NFPA purge credit recommendations on GE Power and Water aeroderivative gas turbines. This includes the hardware changes, triple block and double vent valve system (or drain for liquid fuels), and software changes that include monitoring and alarms managed by the control system.
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Dritsas, Leonidas, Efstathios Kontouras, Ioannis Kitsios, and Anthony Tzes. "Aggressive Control Design for Electric Power Generation Plants." In 2018 26th Mediterranean Conference on Control and Automation (MED). IEEE, 2018. http://dx.doi.org/10.1109/med.2018.8442593.

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Amundarain Ormaza, M., M. Alberdi Goitia, I. Garrido Hernandez, and A. J. Garrido Hernandez. "Wells turbine control in wave power generation plants." In 2009 IEEE International Electric Machines and Drives Conference (IEMDC). IEEE, 2009. http://dx.doi.org/10.1109/iemdc.2009.5075202.

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Ellis, Hershle, Chase Casher, Jamal Longwood, Abel Taye, Laura Ruhala, and Richard Ruhala. "Lunar Cargo Transportation (LuCaT): Semi-Autonomous Vehicle With Suspended Cable and Solar Power." In ASME 2020 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/imece2020-24197.

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Abstract NASA is planning to send astronauts to the moon and then establish sustainable lunar exploration during the 21st Century under the Artemis program. The lunar south pole target site will need ground transportation to transport materials such as lunar ice from one location to another. This paper explores an alternative transportation system that is based on earth aerial tramways, which involves a chassis, wheels, drivetrain, and elevated cables with supporting structure. The wear of regolith lunar dust and the difficulties in traversing the uneven lunar terrain are reduced. Also, the speed and size of the cargo being transported should be superior to the lunar roving vehicle. By implementing a drivetrain system powered by solar energy, long term power generation and vehicle operation is achieved in the south polar region, which remains in sunlight at near horizontal incidence during the lunar cycle. Because of the extreme high and low temperatures of the moon, strength of materials that vary with temperature must be considered. The internal components of the vehicle and the chassis are protected by a lightweight shell. On earth, heat generated by electric charging and use of batteries can be removed by convection with the surrounding air. The lunar atmosphere presents a unique problem of possessing virtually no heat transfer through convection, while solar radiation will add or remove heat more extremely than earth-based conditions. A thermal control system is designed to manage the battery waste heat, utilizing optical solar reflectors and an internal conductive cooling system.
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Pispiris, C. S. "Theoretical base for on-line control of cable electric lines." In International Conference on Life Management of Power Plants. IEE, 1994. http://dx.doi.org/10.1049/cp:19941098.

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Suvorov, Aleksey, Igor Razzhivin, and Arina Evseeva. "Challenges and approaches in modeling wind power plants in electric power systems." In INTERNATIONAL YOUTH SCIENTIFIC CONFERENCE “HEAT AND MASS TRANSFER IN THE THERMAL CONTROL SYSTEM OF TECHNICAL AND TECHNOLOGICAL ENERGY EQUIPMENT” (HMTTSC 2019). AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5120692.

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Reports on the topic "Electric power-plants – Dust control"

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Unknown. INTEGRATED SYSTEM TO CONTROL PRIMARY PM 2.5 FROM ELECTRIC POWER PLANTS. Office of Scientific and Technical Information (OSTI), January 2001. http://dx.doi.org/10.2172/788930.

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Unknown. INTEGRATED SYSTEM TO CONTROL PRIMARY PM 2.5 FROM ELECTRIC POWER PLANTS. Office of Scientific and Technical Information (OSTI), October 2000. http://dx.doi.org/10.2172/789054.

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Unknown. INTEGRATED SYSTEM TO CONTROL PRIMARY PM 2.5 FROM ELECTRIC POWER PLANTS. Office of Scientific and Technical Information (OSTI), December 2001. http://dx.doi.org/10.2172/791497.

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Ralph Altman. INTEGRATED SYSTEM TO CONTROL PRIMARY PM 2.5 FROM ELECTRIC POWER PLANTS. Office of Scientific and Technical Information (OSTI), June 2002. http://dx.doi.org/10.2172/828036.

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Unknown. INTEGRATED SYSTEM TO CONTROL PRIMARY PM 2.5 FROM ELECTRIC POWER PLANTS. Office of Scientific and Technical Information (OSTI), March 2002. http://dx.doi.org/10.2172/794132.

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Unknown. INTEGRATED SYSTEM TO CONTROL PRIMARY PM 2.5 FROM ELECTRIC POWER PLANTS. Office of Scientific and Technical Information (OSTI), June 2000. http://dx.doi.org/10.2172/778929.

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Unknown. INTEGRATED SYSTEM TO CONTROL PRIMARY PM 2.5 FROM ELECTRIC POWER PLANTS. Office of Scientific and Technical Information (OSTI), March 2002. http://dx.doi.org/10.2172/794131.

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Unknown. INTEGRATED SYSTEM TO CONTROL PRIMARY PM 2.5 FROM ELECTRIC POWER PLANTS. Office of Scientific and Technical Information (OSTI), June 2001. http://dx.doi.org/10.2172/785168.

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