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Relevant bibliographies by topics / Combined gas and steam (COGAS)

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Academic literature on the topic 'Combined gas and steam (COGAS)'

Author: Grafiati

Published: 4 June 2021

Last updated: 12 February 2022

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Journal articles on the topic "Combined gas and steam (COGAS)"

1

Jefferson, M., P. L. Zhou, and G. Hindmarch. "Analysis by computer simulation of a combined gas turbine and steam turbine (COGAS) system for marine propulsion." Journal of Marine Engineering & Technology 2, no. 1 (January 2003): 43–53. http://dx.doi.org/10.1080/20464177.2003.11020164.

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Sanneman, Bruce N. "Pioneering Gas Turbine-Electric System in Cruise Ships: A Performance Update." Marine Technology and SNAME News 41, no. 04 (October 1, 2004): 161–66. http://dx.doi.org/10.5957/mt1.2004.41.4.161.

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Recent marine projects have extended the range of applications for GE's LM aeroderivative gas turbines in commercial marine markets. The world's first all gas turbine-powered cruise ship, GTS Millennium, entered service in June 2000. The in-service performance of the combined gas turbine electric and steam system (COGES) will be discussed further in this paper.

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Mrzljak, Vedran, and Tomislav Mrakovčić. "Comparison of COGES and Diesel-Electric Ship Propulsion Systems." Journal of Maritime & Transportation Science Special edition, no. 1 (April 2016): 131–48. http://dx.doi.org/10.18048/2016-00.131.

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Diesel-electric ship propulsion is a frequent shipowners choice nowadays, especially on passengerships. Despite many diesel engines advantages, their primary disadvantage is emission of pollutants. As environmental standards become more stringent, the question of optimal alternative to diesel-electric propulsion arises. COGES (COmbined Gas turbine Electric and Steam) propulsion system is one of the proposals for alternative propulsion system, primarily due to significant reduction of pollutant emissions. On the other hand, gas turbines have higher specific fuel consumption in comparison with diesel engines what represents their noticeable disadvantage. However, some analyzes suggested that COGES propulsion system could be still cost-effective in comparison to diesel-electric propulsion, particularly on passenger ships where higher initial investment can be compensated by increasing the number of passenger cabins. This paper shows a comparison of above mentioned propulsion systems, which can be useful for the optimal ship propulsion system selection

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Cerri, G. "Parametric Analysis of Combined Gas-Steam Cycles." Journal of Engineering for Gas Turbines and Power 109, no. 1 (January 1, 1987): 46–54. http://dx.doi.org/10.1115/1.3240005.

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Combined gas-steam cycles have been analyzed from the thermodynamic point of view. Suitable thermodynamics indices—explained in Appendix A—have been utilized. The parameters that most influence efficiency have been singled out and their ranges of variability have been specified. Calculations have been carried out—see Appendix B—taking into account the state of the art for gas turbines and the usual values for the quantities of steam cycles. The results are given. The maximal gas turbine temperature has been varied between 800°C and 1400°C. The gas turbine pressure ratio has been analyzed in the range of 2–24. Afterburning has also been taken into consideration. Maximal efficiency curves and the corresponding specific work curves (referred to the compressed air) related to the parameters of the analysis are given and discussed.

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Tuma, M., J. Oman, and M. Sekavc ̆nik. "Efficiency of a combined gas-steam process." Energy Conversion and Management 40, no. 11 (July 1999): 1163–75. http://dx.doi.org/10.1016/s0196-8904(99)00015-1.

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Elhaj, Mohamed A., Jamal S. Yassin, and Ali E. Hegaig. "Thermodynamic Feasibility of Cogeneration Gas/Steam Combined Cycle." Advanced Materials Research 658 (January 2013): 425–29. http://dx.doi.org/10.4028/www.scientific.net/amr.658.425.

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This paper is to investigate the thermodynamic feasibility of cogeneration gas/steam combined cycle, in which a computer program, called “Cogeneration Design" has been developed using MATLAB (v7.8) for the analysis. In this cycle one can take advantage of the thermal energy to produce steam which can be used in some small and medium-sized factories such as dairy , juice, soap, paper factories, as well as in desalination plants and other industrial applications need hot water or steam. Here, the thermodynamic analysis is carried out according to three cases, (1)non condensing steam turbine, (2) condensing steam turbine, (3)extraction condensing steam turbine. The results obtained show a difference between the three studied cases, in which the overall efficiency is the highest for case (1), equal 52.82 %, then for case (3), equal 49.13 %, then for case (2), equal 45.31 %.

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Cerri, G., and A. Colage´. "Steam Cycle Regeneration Influence on Combined Gas-Steam Power Plant Performance." Journal of Engineering for Gas Turbines and Power 107, no. 3 (July 1, 1985): 574–81. http://dx.doi.org/10.1115/1.3239775.

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The influence of steam cycle regeneration on combined plant performance has been analyzed from the thermodynamic point of view. A mathematical model has been developed and calculations have been performed according to a cycle analysis criterion. The higher the number of extractions the lower the relative efficiency gain. The influence of the intermediate feedwater temperatures is very small when these temperatures are slightly changed in relation to the equally spaced values. Results are given for a gas turbine firing temperature equal to 1000°C. They show a positive influence on combined cycle efficiency for small regeneration degrees. Gas turbine firing temperature in the range of 800–1400°C has been considered. The influence of the economizer inlet temperature lower limit is shown.

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Chmielniak, Tadeusz, Paweł Mońka, and Paweł Pilarz. "Investigation of a combined gas-steam system with flue gas recirculation." Chemical and Process Engineering 37, no. 2 (June 1, 2016): 305–16. http://dx.doi.org/10.1515/cpe-2016-0025.

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Abstract This article presents changes in the operating parameters of a combined gas-steam cycle with a CO2 capture installation and flue gas recirculation. Parametric equations are solved in a purpose-built mathematical model of the system using the Ebsilon Professional code. Recirculated flue gases from the heat recovery boiler outlet, after being cooled and dried, are fed together with primary air into the mixer and then into the gas turbine compressor. This leads to an increase in carbon dioxide concentration in the flue gases fed into the CO2 capture installation from 7.12 to 15.7%. As a consequence, there is a reduction in the demand for heat in the form of steam extracted from the turbine for the amine solution regeneration in the CO2 capture reactor. In addition, the flue gas recirculation involves a rise in the flue gas temperature (by 18 K) at the heat recovery boiler inlet and makes it possible to produce more steam. These changes contribute to an increase in net electricity generation efficiency by 1%. The proposed model and the obtained results of numerical simulations are useful in the analysis of combined gas-steam cycles integrated with carbon dioxide separation from flue gases.

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Sanjay, Y., Onkar Singh, and B. N. Prasad. "Energy and exergy analysis of steam cooled reheat gas–steam combined cycle." Applied Thermal Engineering 27, no. 17-18 (December 2007): 2779–90. http://dx.doi.org/10.1016/j.applthermaleng.2007.03.011.

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Lugand, P., and C. Parietti. "Combined Cycle Plants With Frame 9F Gas Turbines." Journal of Engineering for Gas Turbines and Power 113, no. 4 (October 1, 1991): 475–81. http://dx.doi.org/10.1115/1.2906264.

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The new 200 MW class MS 9001F gas turbines allow combined cycle plants to reach even higher output levels and greater efficiency ratings. Size factor and higher firing temperatures, with a three-pressure level steam reheat cycle, offer plant efficiencies in excess of 53 percent. Heat recovery steam generators have been designed to accommodate catalytic reduction elements limiting flue gas NOx emissions to as low as 10 ppm VD (15 percent O2). A range of steam turbine models covers the different possible configurations. Various arrangements based on the 350 or 650 MW power generation modules can be optimally configured to the requirements of each site.

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Dissertations / Theses on the topic "Combined gas and steam (COGAS)"

1

Jefferson, Marx. "Analysis of combined gas turbine and steam turbine (COGAS) system for marine propulsion by computer simulation." Thesis, University of Newcastle Upon Tyne, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.431133.

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Drábek, Ivo. "Energetický zdroj se spalovací turbinou." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230039.

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The goal of this master´s thesis is designing power plant with gas turbine of 50 MWe power output for the site. It includes appropriete choose of gas turbine and its simplified termodynamic calculation, designing the thermal diagram and its calculation, for the parameters complying with nominal temperature of outside air, layout design, annual energy and mass flow results, savings of combined heat and power, intended at this application and economic evaluation of investment.

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Safyel, Zerrin Supervisor :. Yeşin Tülay. "Enhancement of the bottoming cycle in a gas/steam combined cycle power plant." Ankara : METU, 2005. http://etd.lib.metu.edu.tr/upload/2/12605896/index.pd.

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Safyel, Zerrin. "Enhancement Of The Bottoming Cycle In A Gas/steam Combined Cycle Power Plant." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/2/12605896/index.pdf.

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A combined cycle gas/steam power plant combines a gas turbine (topping cycle) with a steam power plant (bottoming cycle) through the use of a heat recovery steam generator. It uses the hot exhaust of the gas turbine to produce steam which is used to generate additional power in the steam power plant. The aim of this study is to establish the different bottoming cycle performances in terms of the main parameters of heat recovery steam generator and steam cycle for a chosen gas turbine cycle. First of all
for a single steam power cycle, effect of main cycle parameters on cycle performance are analyzed based on first law of thermodynamics. Also, case of existence of a reheater section in a steam cycle is evaluated. For a given gas turbine cycle, three different bottoming cycle configurations are chosen and parametric analysis are carried out based on energy analysis to see the effects of main cycle parameters on cycle performance. These are single pressure cycle, single pressure cycle with supplementary firing and dual pressure cycle. Also, effect of adding a single reheat to single pressure HRSG is evaluated. In single pressure cycle, HRSG generates steam at one pressure level. In dual pressure cycle, HRSG generates steam at two different pressure levels. i.e. high pressure and low pressure. In single pressure cycle with supplementary firing excess oxygen in exhaust gas is fired before entering HRSG by additional fuel input. So, temperature of exhaust gas entering the HRSG rises. Second law analysis is performed to able to see exergy distribution throughout the bottoming plant
furthermore second law efficiency values are obtained for single and dual pressure bottoming cycle configurations as well as basic steam power cycle with and without reheat. It is shown that maximum lost work due to irreversibility is in HRSG for a bottoming cycle in a single pressure gas / steam combined power plant and in boiler for a steam cycle alone. Comparing this with the single pressure cycle shows how the dual pressure cycle makes better use of the exhaust gas in the HRSG that dual pressure combined cycle has highest efficiency values and lost work due to irreversibility in -most significant component- HRSG can be lowered. And also it is shown that by extending the idea of reheat the moisture content is reduced and improvement in the performance is possible for high main steam pressures. Another observation is that supplementary firing increases the steam turbine output compared to the cycle without supplementary firing. The efficiency rises slightly for HP steam pressures higher than 14 MPa at HRSG exit, because the increased steam production also results in increased mass flows removing more energy from the exhaust gas.

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Kadáková, Nina. "Návrh paroplynového zdroje elektřiny." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417426.

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A combined cycle is one of the thermal cycles used in thermal power plants. It consists of a combination of a gas and a steam turbine, where the waste heat from the gas turbine is used for steam generation in the heat recovery steam generator. The aim of the diploma thesis was the conceptual design of a combined cycle electricity source and the balance calculation of the cycle. The calculation is based on the thermodynamic properties of the substances and the basic knowledge of the Brayton and Rankin-Clausius cycle. The result is the amount and parameters of air, flue gases, and steam/water in individual places and the technological scheme of the source, in which these parameters are listed.

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Kysel, Stanislav. "Energetický paroplynový zdroj na bázi spalování hutnických plynů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230245.

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The main goal of my thesis is to carry out thermic calculations for adjusted conditions of electric and heat energy consumption. The power of the generator is 330 MW. In the proposal, you can find combustion trubines type GE 9171E. Steam-gas power plant is designed to combust metallurgical gases. Effort of the thesis focuses also on giving a new informations about trends in combinated production of electric and heat energy.

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Kysel, Stanislav. "Energetický paroplynový zdroj na bázi spalování hutnických plynů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229801.

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The main goal of my thesis is to carry out thermic calculations for adjusted conditions of electric and heat energy consumption. The power of the generator is 330 MW. In the proposal, you can find combustion trubines type GE 9171E. Steam-gas power plant is designed to combust metallurgical gases. Effort of the thesis focuses also on giving a new informations about trends in combinated production of electric and heat energy.

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8

Jayasinghe, Prabodha. "Development of a tool for simulating performance of sub systems of a combined cycle power plant." Thesis, KTH, Energiteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-99164.

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Abstract In Sri Lanka, around 50% of the electrical energy generation is done using thermal energy, and hence maintaining generation efficiencies of thermal power plants at an acceptable level is very important from a socio-economic perspective for the economic development of the country. Efficiency monitoring also plays a vital role as it lays the foundation for maintaining and improving of generation efficiency. Heat rate, which is the reciprocal of the efficiency, is used to measure the performance of thermal power plants. In combined cycle power plants, heat rate depends on ambient conditions and efficiencies of subsystems such as the gas turbine, Heat Recovery Steam Generator (HRSG), steam turbine, condenser, cooling tower etc. The heat rate provides only a macroscopic picture of the power plant, and hence it is required to analyse the efficiency of each subsystem in order to get a microscopic picture. Computer modelling is an efficient method which can be used to analyse the each subsystem of a combined cycle power plant. Objective of this research is to develop a computer based tool which simulates the performance of subsystems of a combined cycle power plant in Sri Lanka. At the inception of the research, only heat rate was measured, and performances of subsystem were unknown. During the analysis, plant is divided into main systems, in order to study them macroscopically. Then, these main systems are divided into subsystems in order to have a microscopic view. Engineering equation solver (EES) was used to develop the tool, and the final computer model was linked with Microsoft excel package for data handling. Final computer model is executed using both present and past operating data in order to compare present and past performance of the power plant. In combined cycle power plants steam is injected into the gas turbine to reduce the NOx generation and this steam flow is known as NOx flow. According to the result it was evident that turbine efficiency drops by 0.1% and power output increase by 1MW when NOx flow increases from 4.8 to 6.2kg/s. Further it was possible to conclude that gas turbine efficiency drop by 0.1% when ambient temperature increased by 3 C; and gas turbine power output decrease by 2MW when ambient temperature increases from 27 to 31 degrees. Regarding the steam cycle efficiency it was found that steam turbine power output drops by 0.5MW when ambient temperature increases from 27 to 31 degrees; and steam cycle efficiency increases by 1% when NOx flow increases from 4.8 to 6.2kg/s. Further, steam turbine power output decreases by 0.25MW When NOx flow increases from 4.8 to 6.2kg/s Heat rate, which is the most important performance index of the power plant, increases by 10units (kJ/kWh) when ambient temperature increases by 3 C. Heat rate also increases with raising NOx flow which was 6.2kg/s in 2007 and 4.2kg/s in 2011. Hence, heat rate of the power plant has improved (decreased) by 10units (kJ/kWh) from 2007 to 2011. Other than above, following conclusions were also revealed during the study. 1) HRSG efficiency has not change during past 4 years 2) Significant waste heat recovery potential exists in the gas turbine ventilation system in the form of thermal energy

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Al-Anfaji, Ahmed Suaal Bashar. "The optimization of combined power-power generation cycles." Thesis, University of Hertfordshire, 2015. http://hdl.handle.net/2299/15485.

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An investigation into the performance of several combined gas-steam power generating plants’ cycles was undertaken at the School of Engineering and Technology at the University of Hertfordshire and it is predominantly analytical in nature. The investigation covered in principle the aspect of the fundamentals and the performance parameters of the following cycles: gas turbine, steam turbine, ammonia-water, partial oxidation and the absorption chiller. Complete thermal analysis of the individual cycles was undertaken initially. Subsequently, these were linked to generate a comprehensive computer model which was employed to predict the performance and characteristics of the optimized combination. The developed model was run using various input parameters to test the performance of the cycle’s combination with respect to the combined cycle’s efficiency, power output, specific fuel consumption and the temperature of the stack gases. In addition, the impact of the optimized cycles on the generation of CO2 and NOX was also investigated. This research goes over the thermal power stations of which most of the world electrical energy is currently generated by. Through which, to meet the increase in the electricity consumption and the environmental pollution associated with its production as well as the limitation of the natural hydrocarbon resources necessitated. By making use of the progressive increase of high temperature gases in recent decades, the advent of high temperature material and the use of large compression ratios and generating electricity from high temperature of gas turbine discharge, which is otherwise lost to the environment, a better electrical power is generated by such plant, which depends on a variety of influencing factors. This thesis deals with an investigation undertaken to optimize the performance of the combined Brayton-Rankine power cycles' performance. This work includes a comprehensive review of the previous work reported in the literature on the combined cycles is presented. An evaluation of the performance of combined cycle power plant and its enhancements is detailed to provide: A full understanding of the operational behaviour of the combined power plants, and demonstration of the relevance between power generations and environmental impact. A basic analytical model was constructed for the combined gas (Brayton) and the steam (Rankine) and used in a parametric study to reveal the optimization parameters, and its results were discussed. The role of the parameters of each cycle on the overall performance of the combined power cycle is revealed by assessing the effect of the operating parameters in each individual cycle on the performance of the CCPP. P impacts on the environment were assessed through changes in the fuel consumption and the temperature of stack gases. A comprehensive and detailed analytical model was created for the operation of hypothetical combined cycle power and power plant. Details of the operation of each component in the cycle was modelled and integrated in the overall all combined cycle/plant operation. The cycle/plant simulation and matching as well as the modelling results and their analysis were presented. Two advanced configurations of gas turbine cycle for the combined cycle power plants are selected, investigated, modelled and optimized as a part of combined cycle power plant. Both configurations work on fuel rich combustion, therefore, the combustor model for rich fuel atmosphere was established. Additionally, models were created for the other components of the turbine which work on the same gases. Another model was created for the components of two configurations of ammonia water mixture (kalina) cycle. As integrated to the combined cycle power plant, the optimization strategy considered for these configurations is for them to be powered by the exhaust gases from either the gas turbine or the gases leaving the Rankine boiler (HRSG). This included ChGT regarding its performance and its environmental characteristics. The previously considered combined configuration is integrated by as single and double effect configurations of an ammonia water absorption cooling system (AWACS) for compressor inlet air cooling. Both were investigated and designed for optimizing the triple combination power cycle described above. During this research, tens of functions were constructed using VBA to look up tables linked to either estimating fluids' thermodynamic properties, or to determine a number of parameters regarding the performance of several components. New and very interesting results were obtained, which show the impact of the input parameters of the individual cycles on the performance parameters of a certain combined plant’s cycle. The optimized parameters are of a great practical influence on the application and running condition of the real combined plants. Such influence manifested itself in higher rate of heat recovery, higher combined plant thermal efficiency from those of the individual plants, less harmful emission, better fuel economy and higher power output. Lastly, it could be claimed that various concluding remarks drawn from the current study could help to improve the understanding of the behaviour of the combined cycle and help power plant designers to reduce the time, effort and cost of prototyping.

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Steinjan, Karl. "Experimentelle und theoretische Untersuchungen zum integrierten Gas-Dampf-Prozess für lastflexible Kraft-Wärme-Kopplung." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-208787.

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Der integrierte Gas-Dampf (GiD-) Prozess mit Wasserrückgewinnung ist ein flexibler Kraft-Wärme-Kopplungsprozess, der die gleichzeitige Bereitstellung von Strom und Wärme teilweise entkoppeln kann. Der effiziente und sparsame Einsatz von fossilen Brennstoffen ist aus ökonomischer wie auch ökologischer Sicht geboten. Die Kraft-Wärme-Kopplung (KWK), die gleichzeitige Erzeugung von Strom und Wärme, ist eine Möglichkeit dafür. Allerdings erfordert die KWK auch eine gleichzeitige Abnahme von Strom und Wärme beziehungsweise deren Speicherung. Sowohl Strom als auch Prozessdampf lassen sich nur aufwendig und damit relativ teuer speichern, weshalb Alternativen gefragt sind. Der GiD-Prozess besteht aus einer Gasturbine mit nachgeschaltetem Abhitzedampfkessel. Die Gasturbine verfügt als Besonderheit über eine Dampfinjektion, die vor, nach oder direkt in die Brennkammer erfolgen kann. Der Abhitzekessel hat zusätzliche Wärmeübertragerflächen um das Abgas bis unter den Taupunkt abzukühlen. Somit kann ein Teil des injizierten Dampfes aus dem Abgas zurückgewonnen und wiederverwendet werden. Der in die Gasturbine injizierte Dampf führt dieser weitere Energie zu. Diese kann entweder zur Leistungssteigerung der Anlage oder zur Reduzierung des fossilen Brennstoffbedarfes genutzt werden. Die erste Option der Leistungssteigerung ist auch als Cheng-Prozess bekannt. Diese Arbeit widmet sich der weniger untersuchten zweiten Möglichkeit der Brennstoffreduzierung. Beim Vergleich des GiD-Prozesses mit verschiedenen anderen Kraftwerks-Prozessen zeigt sich, dass dieser besonders gut für industrielle Anlagen mit Prozessdampfbedarf und einer elektrischen Leistung kleiner 20 MW el geeignet ist. Im Rahmen dieser Arbeit wurde der GiD-Prozess mittels einer Versuchsanlage auf Basis einer Industriegasturbine mit 650 kW el untersucht. Die Arbeit dokumentiert verschiedene Versuchsfahrten und Untersuchungen an dieser Anlage. Die Injektion von Dampf reduziert die Schadstoffemissionen in den zulässigen Bereich und kann sehr flexibel zu einer Steigerung des Anlagenwirkungsgrades von bis zu zwei Prozent führen. Dabei wird der Dampf sehr gleichmäßig in die Versuchsanlage eingebracht, so dass keine signifikanten Änderungen der Abgastemperaturverteilung erkennbar sind. Die Überhitzung des Dampfes kann zu einer weiteren Steigerung des Anlagenwirkungsgrades führen. Die Rückgewinnung des eingebrachten Dampfes ist mit den entsprechenden Wärmeübertragern möglich. Das zurückgewonnene Wasser ist durch die Stickoxide des Abgases verunreinigt und muss entsprechend aufbereitet werden.

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Books on the topic "Combined gas and steam (COGAS)"

1

Kehlhofer, Rolf. Combined-cycle gas & steam turbine power plants. Lilburn, GA: Fairmont Press, 1991.

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Combined power plants: Including combined cycle gas turbine (CCGT) plants. Oxford [England]: Pergamon Press, 1992.

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Combined cycle systems for near-zero emission power generation. Oxford, UK: Woodhead Pub., 2012.

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Moore, Edwin A. Prospects for gas-fueled combined-cycle power generation in the developing countries. Washington, D.C. (1818 H St. N.W., Washington 20433): World Bank Industry and Energy Dept., PRE, 1991.

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Fluidised Bed Combustion Combined Cycle Steering Committee. Prospects for the use of advanced coal based power generation plant in the United Kingdom: A report prepared under the aegis of ACORD by the Fluidised Bed Combustion Combined Cycle and Gasification Combined Cycle Steering Committees. London: H.M.S.O., 1988.

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International Joint Power Generation Conference (1990 Boston, Mass.). Cogeneration and combined cycle plants--design, interconnection, and turbine applications: Presented at the 1990 International Joint Power Generation Conference, Boston, Massachusetts, October 21-25, 1990. New York, N.Y: American Society of Mechanical Engineers, 1990.

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1951-, Kehlhofer Rolf, and Kehlhofer Rolf 1951-, eds. Combined-cycle gas & steam turbine power plants. 2nd ed. Tusla, Okla: PennWell, 1999.

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1951-, Kehlhofer Rolf, ed. Combined-cycle gas & steam turbine power plants. 3rd ed. Tulsa, Okla: Penwell, 2008.

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Kehlhofer, Rolf. Combined-Cycle Gas & Steam Turbine Power Plants. Fairmont Pr, 1997.

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Kehlhofer, Rolf. Combined-Cycle Gas and Steam Turbine Power Plants. Prentice Hall, 1991.

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Book chapters on the topic "Combined gas and steam (COGAS)"

1

Sharma, Achintya, Meeta Sharma, Anoop Kumar Shukla, and Nitin Negi. "Evaluation of Heat Recovery Steam Generator for Gas/Steam Combined Cycle Power Plants." In Lecture Notes in Mechanical Engineering, 189–200. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6416-7_18.

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de Souza, Gilberto Francisco Martha, Fernando Jesus Guevara Carazas, Leonan dos Santos Guimarães, and Carmen Elena Patino Rodriguez. "Combined-Cycle Gas and Steam Turbine Power Plant Reliability Analysis." In Springer Series in Reliability Engineering, 221–47. London: Springer London, 2012. http://dx.doi.org/10.1007/978-1-4471-2309-5_9.

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Dong, Chen, Qulan Zhou, Tongmo Xu, Shi’en Hui, and Jibing Huang. "Optimization Calculation of Characteristic Parameters of Gas-steam Combined Cycle System Combusting Crude Gas and Purge Gas." In Challenges of Power Engineering and Environment, 99–102. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-76694-0_17.

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Hnydiuk-Stefan, Anna. "Mathematical Models with the Continuous Time for Selection of the Optimum Power of a Gas Turbine Set for Newly Built Dual-Fuel Gas-Fired Combined Heat and Power Plants in Parallel Systems." In Dual-Fuel Gas-Steam Power Block Analysis, 39–79. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-03050-6_4.

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Nielsen, P. E. Højlund, and Inga Dóra SigurdArdóttir. "Development and Characterization of Steam Regenerable Sorbents for Hot Gas Desulphurization in Coal Gasification Based Combined Cycle Plant." In Gas Cleaning at High Temperatures, 454–69. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-2172-9_29.

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Dubey, Kaushalendra Kumar, and R. S. Mishra. "Comparative Analysis of Combined Gas Turbine–Steam Turbine Power Cycle Performance by Using Entropy Generation and Statistical Methodology." In Algorithms for Intelligent Systems, 157–75. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3357-0_11.

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Gülen, S. Can. "Steam Turbine." In Gas Turbine Combined Cycle Power Plants, 75–113. CRC Press, 2019. http://dx.doi.org/10.1201/9780429244360-5.

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Gülen, S. Can. "Heat Recovery Steam Generator (HRSG)." In Gas Turbine Combined Cycle Power Plants, 115–64. CRC Press, 2019. http://dx.doi.org/10.1201/9780429244360-6.

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Wang, Ting. "The gas and steam turbines and combined cycle in IGCC systems." In Integrated Gasification Combined Cycle (IGCC) Technologies, 497–640. Elsevier, 2017. http://dx.doi.org/10.1016/b978-0-08-100167-7.00028-7.

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Dzida, Marek. "Possible Efficiency Increasing of Ship Propulsion and Marine Power Plant with the System Combined of Marine Diesel Engine, Gas Turbine and Steam Turbine." In Advances in Gas Turbine Technology. InTech, 2011. http://dx.doi.org/10.5772/24018.

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Conference papers on the topic "Combined gas and steam (COGAS)"

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Wiggins, E. G. "COGAS Propulsion for LNG Ships." In SNAME Maritime Convention. SNAME, 2008. http://dx.doi.org/10.5957/smc-2008-004.

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Propulsion of LNG ships is undergoing significant change. The traditional steam plant is losing favor because of its low cycle efficiency. Medium-speed diesel-electric and slow-speed diesel-mechanical drive ships are in service, and more are being built. Another attractive alternative is combined gas and steam turbine (COGAS) drive. This approach offers significant advantages over steam and diesel propulsion. This paper presents the case for the COGAS cycle.

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Romanov, V. I., O. G. Zhiritsky, A. V. Kovalenko, and V. V. Lupandin. "M21 Cruise Marine Combined Cycle Plant." In ASME 1995 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/95-gt-450.

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The paper describes M21 cruise marine combined cycle plant for SLAVA class cruisers (COGAG arrangement). Three guided missile cruisers (Figure 1) are powered by these plants (two plants for each cruiser). During this plant development the more strict demands on weight and size had been taken into account as compared with M25 plants for merchant ships. The paper shows technical data of M21 combined cycle plant, descriptions and design features of SPA MASHPROEKT GT 6004R gas turbine with reversible free power turbine, waste-heat recovery boiler, steam turbine with a condenser and a common gear unit. More than 10 year service experience of these plants is shown in this paper.

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Ellington, Louis, Glenn McAndrews, Alexander Harsema-Mensonides, and Ravi Tanwar. "Gas Turbine Propulsion for LNG Transports." In ASME Turbo Expo 2006: Power for Land, Sea, and Air. ASMEDC, 2006. http://dx.doi.org/10.1115/gt2006-90715.

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GE aero-derivative gas turbines were first introduced into marine operations during the late 1960’s and early 1970’s. GE is now leveraging its many years of proven marine experience and offshore dual-fuel experience to offer dual-fuel gas turbines for LNG Carrier (LNGC) propulsion and electric power. With building of new larger LNGC’s now beginning, the industry is seriously considering a change to gas turbine based systems in order to capitalize on their many advantages. CoGES (combined gas turbine — steam generator electric) plants for LNGC’s consist of dual-fueled gas-turbine-generator (GTG) set(s) and auxiliaries, heatrecovery steam generator (HSRG), a steam-turbine-generator set, feed-water, steam and condensate systems. Leveraging cruise-ship reliability programs, the GTG instrumentation and control systems are single-point fault tolerant. Gas turbine power plants offer many additional advantages, including but not limited to: Use of boil-off gas as a cost-effective and environmentally friendly fuel (slow speed diesel ships require complex on-board reliquifaction of boil-off gas). When installed on deck, CoGES plants provide high power-volume density that translates into increased cargo revenue and deferred capital cost. Gas turbines ease of maintenance and quick changeout. Developed to meet the International Code for the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk (IGC) and classification society standards for marine applications, GE’s 2 X LM2500 CoGES plant is a very simple and reliable solution. Dry-run capable HRSG’s are used in lieu of exhaust damper and by-pass systems. Outage of any one prime mover leaves the plant with nominally 50% power remaining. Common spares are inherent. Established as having an equivalent level of safety as traditional LNGC propulsion systems via FMECA type studies, the 2 x dual-fueled LM2500 CoGES plant has been “Approved in Principle” by Class for use on LNG Carriers. Alternatively, GE’s 1 X dual-fueled LM6000 or 1 X LM2500+/G4 CoGES plant addresses capital & operating cost pressures via reduced equipment costs and improved fuel economy. Redundancy and simplicity are achieved via a dry-run capable HRSG and an STG, combined with auxiliary diesel generator sets. Both the LM2500 family and LM6000 CoGES plants offer viable alternatives to traditional steam turbine and slow-speed-diesel propulsion. Gas-fuel, liquid-fuel, and bi-fuel operation provide flexibility and redundancy to ship owners who must safely and reliably deliver cargo at the lowest possible cost per MMBTU throughout a fleet life cycle.

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Kuo, Simion C. "Coal-Fired Gas Turbines for Marine Propulsion Applications." In ASME 1986 International Gas Turbine Conference and Exhibit. American Society of Mechanical Engineers, 1986. http://dx.doi.org/10.1115/86-gt-202.

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This paper discusses the prospects of using coal as the primary source of energy to power gas turbines for marine propulsion applications. The problems associated with burning coal for generating power are reviewed in terms of their inherent limitations, environmental effects, compatibility with turbomachinery combusters, and economic considerations. Various forms of coal-based heat sources and their applicable combuster system configurations are identified. Integration of these fuel/combustor combinations with different gas turbine cycles yields a number of possible coal-fired gas turbine systems. A comparison of these candidate systems with marine propulsion system requirements resulted in the selection of a COGAS system burning coal-oil slurry. Candidate COGAS system configurations are presented, and the overall propulsion engine performance is defined. A baseline coal-oil fired marine COGAS propulsion system was selected, and its performance characteristics were estimated, taking into account the exhaust gas flow effect on the waste-heat steam generator. The payload capabilities and endurance limitations for a coal-fired COGAS ship are presented and compared with those of a conventional oil-fired ship to show the possible fuel cost savings.

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Yadav, R., Sunil Kumar Jumhare, Pradeep Kumar, and Samir Saraswati. "Thermodynamic Analysis of Intercooled Gas-Steam Combined and Steam Injected Gas Turbine Power Plants." In ASME Turbo Expo 2004: Power for Land, Sea, and Air. ASMEDC, 2004. http://dx.doi.org/10.1115/gt2004-54097.

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The current emphasis on the development of gas turbine related power plants such as combined and steam injected is on increasing the plant efficiency and specific work while minimizing the cost of power production per kW and emission. The present work deals with the thermodynamic analysis of intercooled (both surface and evaporative) gas/steam combined and steam injected cycle power plants. The intercooling has a beneficial effect on both plant efficiency and specific work if the optimum intercooling pressure is chosen between 3 and 4. The evaporative intercooler is superior to surface type with reference to plant efficiency and specific work.

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Liu, Wancai, and Hui Zhang. "Steam Turbine Driving Compressor for Gas-Steam Combined Cycle Power Plant." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-11040.

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Gas turbine is widely applied in power-generation field, especially combined gas-steam cycle. In this paper, the new scheme of steam turbine driving compressor is investigated aiming at the gas-steam combined cycle power plant. Under calculating the thermodynamic process, the new scheme is compared with the scheme of conventional gas-steam combined cycle, pointing its main merits and shortcomings. At the same time, two improved schemes of steam turbine driving compressor are discussed.

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Qianyu, Yang, Wang Lei, and Jiang Yang. "Operation parameters analysis of gas steam combined cycle." In 2018 5th International Conference on Systems and Informatics (ICSAI). IEEE, 2018. http://dx.doi.org/10.1109/icsai.2018.8599299.

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Tuccillo, R., G. Fontana, and E. Jannelli. "Coal-Derived Gas Utilization in Combined Gas-Steam Cycle Power Plants." In ASME 1990 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1990. http://dx.doi.org/10.1115/90-gt-366.

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In this paper, a general analysis of combined gas-steam cycles for power plants firing with both hydrocarbons and coal derived gas is reported. The purpose of this paper is to study the influence on power plants performance of different kind of fuels and to evaluate the most significant parameters of both gas and combined cycle. Results are presented for plant overall efficiency and net specific work, steam to gas mass flow ratio, dimensionless gas turbine specific speed and diameter, CO2 emissions etc., as functions of gas cycle pressure ratio and of the combustion temperature. Furthermore, for an existing power plant with a 120 MW gas turbine, the authors try to establish in which measure the combined cycle characteristic parameters, the gas turbine operating conditions, and the heat recovery steam generator efficiency, are modified by using synthetic fuels of different composition and calorific value. The influence is also analyzed either of bottoming steam cycle saturation pressure or — in a dual pressure steam cycle — of dimensionless fraction of steam mass flow in high pressure stream. The acquired results seem to constitute useful information on the criteria for the optimal design of a new integrated coal gasification combined cycle (IGCC) power plant.

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Zhao, Hongbin, and Chang Liu. "Performance Analysis of Gas-Steam Combined Cycle with Coke Oven Gas." In 2011 Asia-Pacific Power and Energy Engineering Conference (APPEEC). IEEE, 2011. http://dx.doi.org/10.1109/appeec.2011.5749077.

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Yadav, R., and Lakshman Singh. "Comparative Performance of Gas/Steam Combined Cycle Power Plants." In ASME 1995 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/95-gt-155.

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In this paper, an attempt has been made to predict the comparative thermal performance of various configurations of unfired gas/steam combined cycle power plants. The prediction is based on the thermodynamic analysis of various components of the plant. The performance curves drawn may be beneficial in the selection of configuration and parameters for the design of combined cycle plants.

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Reports on the topic "Combined gas and steam (COGAS)"

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Sterzinger, G. J. Integrated gasification combined cycle and steam injection gas turbine powered by biomass joint-venture evaluation. Office of Scientific and Technical Information (OSTI), May 1994. http://dx.doi.org/10.2172/10145278.

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