gas powered turbine Articles
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Understanding and improving energy conversion systems with the aid of exergy–based methods
Exergy–based methods are powerful tools for developing, evaluating and improving an energy conversion system. Conventional exergy–based analyses have limitations, which are significantly reduced by the so–called advanced analyses. The latter evaluate: (a) the interactions among components of the overall system, and (b) the real potential for improving a system component. The main objective of ...
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Energy and exergy analysis of a gas turbine power plant in Algeria
An exergy analysis of a twin ABB GT13E2 Gas Turbines (GTs) power plant (2 ? 146.2 MW) is presented in this paper. This plant is running since 2004 at F'Krina in the northeastern part of Algeria. The analysis was performed by the flow-sheet programme, 'Cycle-Tempo'. At off-design load (83%), the plant and its apparatus conserve nearly the same design load performances. However, the performance of ...
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Fuel for thought: European energy market restructuring and the future of power generation gas use
The liberalisation of the West European electricity and gas markets, technological developments in power technology and environmental policies are expected to stimulate continued strong growth in power generation gas consumption. This paper examines the importance of three frequently disregarded considerations in the analysis of expanded gas use in power generation. These include: (a) better use ...
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Exergy analysis of a combined fuel cell and Gas Turbine Power Plant with intercooling and reheating
This paper presents a comparative exergy study of the performance of various gas turbine power generation plants and a high temperature Solid Oxide Fuel Cell (SOFC). The overall system is analysed and its exergy efficiency and exergy destruction are obtained, as well as individual models of each component. The results for selected operating conditions are compared against past literature data. ...
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Gas turbine emissions and environmental impact of efficiency boosting techniques
In this paper, environmental impact of gas turbine power generation equipment is reviewed and emissions sources are discussed. The types of pollutants in simple cycle gas turbine power plants and the associated air quality problems are compiled. Then, airborne pollutants which are generated in the combustion turbines are described and factors affecting emission formation are discussed. Also, the ...
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Energy and exergy analysis of reverse Brayton refrigerator for Gas Turbine power boosting
In this study the use of Reverse Brayton cycle to boost up the power of gas turbine power plants operating in hot humid ambiance is analysed by the energy and exergy methods. The gas turbine inlet temperature is reduced by mixing the chilled air from Brayton refrigeration cycle and the main intake air stream reaching low intake temperatures. In this paper the effect of irreversibilities in the ...
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Thermodynamic and environmental consideration of advanced gas turbine cycles with reheat and recuperator
The role of gas turbine power plants in electrical energy production has been considerably increased in the last two to three decades. Various methods have been proposed to improve the performance of gas turbine cycles. In this research, two methods, a reheat cycle (RC) and a cycle with a reheat and a recuperator (RHC), were investigated and compared with a simple cycle (SC). The main objective ...
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Exergetic analysis of gas turbine plants
An exergetic analysis was performed for a 116-MW gas-turbine power plant. Mass and energy conservation laws were applied to each component of the system. Quantitative exergy balance for each component and for the whole system was considered. In this study, the exergy of a material stream is decomposed into thermal, mechanical and chemical exergy and an entropy-production flow. The effect of a ...
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Evaluation of Gas Turbine Startup and Shutdown Emissions for New Source Permitting
Utility deregulation and the increase in electrical demand have led to a surge in new gas turbine-based power projects. This paper examines the regulatory issues relating to startup/shutdown emissions, emissions profiles during gas turbine startups/shutdowns, annual emissions calculations, a methodology for evaluating the air quality impacts of startup emissions, and compliance with emission ...
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Thermodynamic analysis of a hybrid gas turbine/thermoacoustic heat pump/refrigeration engine
Possible performance enhancement of small gas turbine power plants through the application of thermoacoustic systems is examined. The thermoacoustic subsystem is powered only by the waste heat of the gas turbine. Two different gas turbine configurations are considered: a Thermoacoustic refrigerator assisted gas turbine (TRG) and a Combined thermoacoustic heat pump and refrigeration assisted gas ...
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Exergy analysis of a gas turbine system with evaporative cooling at compressor inlet
This paper deals with the thermodynamically modelled gas turbine consisting of Media Evaporative Cooling System (MECS) at compressor inlet for investigating the generated power, second law efficiency, and entropy generation number. The parametric study using this model shows effects of ambient conditions, compressor and turbine inlet temperature, and pressure ratio on the gas turbine power and ...
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Exergetic and exergo–economic analysis of a turboprop engine: a case study for CT7–9C
The turboprop engine has played an important role in short haul commuter and military transport aircraft where high speed is not critical. It may provide the aviation sector with one of the most significant means of achieving reduced operating costs through reductions in fuel consumption. This paper deals with exergo–economic analysis of a modern turboprop engine (CT7–9C) with a free power ...
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Optimisation of micro gas turbine by exergy, economic and environmental (3E) analysis
This research proposes a new method for optimisation of a power generation system based on exergy fuel cost and external social cost of air pollution. A thermodynamic model is provided to estimate the outlet mass flow rates of CO2, CO, NO and NO2 for a gas turbine based on maximising the first and second law efficiencies and minimising the objective function. Results show that inclusion of the ...
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Efficiency of a standard gas-turbine power generation cycle running on different fuels
This paper presents a study of second-law efficiency in a standard Brayton combined cycle power generation, using several paraffinic fuels ranging from methane to heptane. The main objective of the study was to identify a trend with the number of carbon atoms in the compound. In this way, a qualitative criterion can be built to evaluate the properties of poor-quality gas turbine fuels containing ...
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Project - Al Taweelah Power Plant, UAE
Boiler Water Treatment Located NE of Abu Dhabi, UAE, Taweelah Power Plant is a desalinization facility generating power with the help of gas & steam turbines. The power plant has been using polyamines to treat their steam boilers water for more than 14 years. 10 boilers x 600 t/h each 100 bar 540°C ...
By Fineamin SA
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An environmentally conscious robust optimisation approach for planning power generating systems
This study proposes a robust optimisation capacity expansion planning model that yields a less sensitive solution due to variations in model parameters such as demand and fuel prices. By adjusting the penalty parameters, the model can accommodate the decision maker's risk aversion and yield a solution based upon it. The proposed model is then applied to Ontario Power Generation, the largest power ...
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5.7 MWe Combined Heat and Power Plant - Coke Oven Gas in Chemical Manufacturing - Case Study
OWNER Jinneng Coal Gasification Chemical Co., Ltd. LOCATION Shandong Province, Peoples Republic of China PRODUCT Taurus 60 Gas Turbine CUSTOMER VALUE Sustainable Power for China Coking Industry Jinneng is an integrated chemical enterprise focusing on the production and sales of coal derivative chemicals and refined chemical products. One of the company's main products is coke, which is ...
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Modelling and exergoeconomic optimisation of a gas turbine with absorption chiller using evolutionary algorithm
In this paper, thermodynamic modelling of a gas turbine cycle with absorption chiller is performed. A thermoeconomic approach is utilised to find the most optimal values of design parameters for practical applications. Some design parameters considered are compressor pressure ratio, compressor isentropic efficiency, gas turbine isentropic efficiency, gas turbine inlet temperature, HRSG pressure, ...
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Exergy analysis of the steam-injected gas turbine
In this paper, the effect of steam injection in the combustion chamber on the exergy efficiency of a gas turbine was investigated. Cycle exergy efficiency, net power output and exergy destruction have been calculated for different mass flow rates and temperature of the injected steam. The range of variation of the mass flow rate was between 0 and 5.24% of the design air flow rate, and the ...
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Permit Compliance Monitoring for the Power Generation Industry
The Clean Air Act Amendments (CAAA) of 1990 authorized EPA to develop regulations requiring facilities to monitor the adequacy of emission control equipment and plant operations. This paper discusses the various methods available for coal-fired power plants and gas turbine installations to demonstrate a reasonable assurance of facility compliance with emission limitations, and ensure that control ...
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