gas turbine air Articles
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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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Co-production of synthesis gas and power by integration of Partial Oxidation reactor, gas turbine and air separation unit
A new synthesis gas production process based on partial oxidation (POX) of natural gas is investigated. Synthesis gas and mechanical power are generated in a plant that integrates a POX reactor, a synthesis gas turbine and an air separation unit. The synthesis gas is expanded in the turbine which runs the air separation unit. By means of an exergy analysis, it is shown that the synthesis gas ...
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Effects of thermodynamic and mechanical irreversibilities on gas turbine performance enhancement by intake air cooling
A mathematical model for an existing gas turbine unit in Bahrain another model for intake Air Cooling Gas Turbine (ACIGT) with irreversibility's and variable specific heats were derived in dimensionless form. The maximum net power output and corresponding thermal efficiency were obtained using graphical visualisation and numerical calculation. Results showed an increases of 30% in output power ...
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Gas turbine performance enhancement by intake air cooling
In this work, the influence of air cooling intake on the gas turbine performance is presented. The proposed system, together with the gas turbine, is described. A mathematical model of ACIGT (Air Cooling Intake Gas Turbine) is derived and formulated in dimensionless form from which the constraint multivariable optimisation problem was formulated. To demonstrate the effectiveness of the proposed ...
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Increase filter life and lower pressure drop, gas turbine - Case Study
With rising energy costs and shortages around the world, the Power and Process industries continue to seek innovative solutions. The demand for energy worldwide continues to rise faster than generating capacity, and the deregulation of the electric power industry has created a demand for products that will make power producers more efficient. Foreign matter entering the air houses of Gas ...
By Munters
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Thermodynamic and economic assessments of gas turbine inlet air-cooling by evaporative technique
In this study, the effects of gas turbine inlet air-cooling by evaporative technique on work output and thermal end exergy efficiency were analysed. These analyses are performed with the use of per unit volumetric flow, which is fixed regardless of atmospheric air conditions. In addition, a simple and effective model is developed for the economic analysis of evaporative cooling. As a case study, ...
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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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7.5 MWe Direct Drying and Cogeneration - Tissue Industry - Case Study
OWNER Lucart Group LOCATION Province of Lucca, Italy DIRECT DRYING DESIGN AND SUPPLY Valmet PRODUCT Taurus 70 Gas Turbine CUSTOMER VALUE Efficient and Sustainable Power The Lucart Castelnuovo di Garfagnana tissue mill is part of the Lucart Group, one of the first European paper and tissue producers. The mill has inaugurated its cogeneration system which is comprised of a Taurus™ 70 gas ...
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The economics of wind energy within the generation mix
With more than 15,000 plants of different capacity ranges, Germany has become the world's No. 1 in generating electricity from wind power, covering around 4% of the electricity requirements at home. This is due on the one hand to the successful promotion by the Renewable Energy Act (EEG) and, on the other hand, to the tax breaks from loss allocation and depreciation. During low-load periods, load ...
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Performance enhancement of GT–ST power plant with inlet air cooling using lithium bromide/water vapour absorption refrigeration system
Performance improvement techniques in power generation systems especially in gas turbine–steam turbine (GT–ST) combined cycle (CC) power plants by compressor inlet air cooling prove to be much improvising. In this work, the performance enhancement of CC power plant by inlet air cooling method using lithium bromide–water (LiBr/H2O) absorption refrigeration system powered by waste heat from heat ...
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The effect of precooling inlet air on CHP efficiency in natural gas pressure reduction stations
Almost all pressure reduction stations in Iran use expansion valves to reduce the natural gas pressure, which leads to wasting large amount of exergy. In this paper, a system is proposed which includes the modification of a conventional pressure reduction station with the addition of a turbo expander and a gas turbine for power recovery and generation. The next step is investigating the effect of ...
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A cost–effective backward Lagrangian method for simulation of pollutant formation in gas turbine combustors by post–processing of complex 3D calculations
A backward Lagrangian Monte Carlo modelling is proposed to calculate by post–processing the PDF of the thermo–chemical parameters of complex turbulent reactive flows simulated with a simple turbulent combustion model. PDF's of minor species such as pollutant species (NOx, soot, unburnt hydrocarbons...) can be easily obtained as long as these species have no significant influence on the main ...
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22 MWe Combined Heat And Power Direct Drying And Cogeneration - CMPC Tissue, S.A. - Case Study
OWNER CMPC Tissue, S.A. LOCATION Talagante. Chile DIRECT DRYING DESIGN AND SUPPLY Valmet PRODUCT Titan 250 (22 MWe) Gas Turbine CUSTOMER VALUE Energy Cost Savings, Increase in Energy Efficiency CMPC is one of the largest and oldest paper companies in Latin America and is committed to the sustainable use of energy. Their plant in Talagante, Chile, on the outskirts of Santiago, produces high ...
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AgriPower`s Waste To Energy Systems Use Biomass And Plastic Waste To Efficiently Produce Clean, Combined Heat And Power
The above graphic shows the complete AG-375 System which consists of: (1) the Fuel Feed Hopper Module; (2) the Combustion Chamber Module; (3) the Fans and Filters Module; and (4) the Automated Control Module, all set on a tractor-trailer chassis. A second trailer chassis contains: (5) AgriPower’s proprietary T3 Technology Module (it stands for Thermal Treatment and Transfer); (6) the ...
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