gas turbine Articles
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Long Term Service Agreements Project - Case Study
We are awarded a long term contract to supply spare parts, component repairs, field engineering services of 9 units for GE Fr6 Gas Turbine in South East Asia. We repair and refurbish Gas Turbine components such as Rotor, Nozzle, Blade, Bucket, Vane, Combustion Liner, Transition Pieces, etc. We also provide technical advisers for commissioning of Gas Turbine during major overhaul and major ...
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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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Power plant independent power producer - Pioneers Power Limited - Case Study
OWNER Pioneers Power Limited LOCATION Yemen PRODUCT Six Taurus 60 (5.5 MWe) Gas Turbines CUSTOMER VALUE Flared Gas for Grid Power The Government of Yemen together with Pioneers Power Limited elected to take steps to comply with worldwide flare reduction policies. They found the right solution was to generate electricity using associated gas containing heavy hydrocarbons. A new power plant was ...
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An appraisal method of exergy cost minimisation for co-generation systems
This study introduces an exergy cost-minimisation appraisal method for a simple gas turbine co-generation system. Optimisation of a gas turbine co-generation system of the electric output class of 17 MW is examined for a variety of turbine inlet temperatures of 950–1,300°C. An optimum value of the turbine inlet temperature exists for exergy cost minimisation and is estimated to be 1,200°C since ...
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Exergy analysis of gas-turbine systems with high fogging compression
Gas-turbine cycles with high fogging compression could offer enhanced efficiency and low complexity. Whereas compression power and heat rates decrease when small amounts of water (up to 2% of air flow by mass) are injected at the machine inlet, increased injection amounts could allow implementation of regeneration, further decreasing the heat rate. In this study, an exergy analysis is carried out ...
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Optimisation of the part-flow evaporative gas turbine cycles based on the exergy method
The evaporative gas turbine cycle is a new high-efficiency power cycle that has reached the pilot plant testing stage. The latest configuration proposed for this cycle is known as part flow evaporative gas turbine cycle (PEvGT) in which humidification is combined with steam injection. Having advantages of both steam injected and humid air cycles, it is regarded as a very desirable plant for ...
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Heavy Duty 126 MW GT upgrade for aerodynamic performance improvement
Scope of the Project Turbine Services Ltd. , a supplier of replacement parts for GE Large Frame Gas Turbines, has worked with SoftlnWay's engineering team on the redesign of the third stage of the GE Frame 9E heavy duty gas turbine. The scope of this project included the redesign of the third stage vanes and blades to create components competitive with the GE Advanced Aero Uprate package. ...
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Ecological optimisation of an irreversible-closed ICR gas turbine cycle
The ecological function is optimised for an irreversible-closed Intercooled-Recuperated (ICR) gas turbine cycle using the theory of Finite-Time Thermodynamics by searching the optimum intercooling pressure ratio and heat conductance distributions among the four heat exchangers for fixed total heat exchanger inventory and the results are compared with those at the maximum power. Numerical examples ...
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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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Combined heat and power/direct drying ceramic industry - Ceramica Sichenia - Case Study
OWNER Ceramics Sichenia LOCATION Sichenia, Italy PRODUCT Saturn 20 (1.1 MWe) Gas Turbine CUSTOMER VALUE Energy Cost Reduction Ceramics Sichenia manufactures floor tiles, exterior tiles and bathroom fixtures from ceramic slurries produced at their plant nearModena, Italy. In order to reduce their operating costs at the energy-intensive factory, Ceramica Sichenia installed a 1.1 MWe Saturn 20 ...
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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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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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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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Thermodynamic evaluation of gas turbines for cogeneration applications
In this paper, the first and second laws of thermodynamics have been utilised to evaluate the performance of intercooled reheat regenerative gas turbine cogeneration plant. The effects of overall pressure ratio, cycle temperature ratio, pressure losses, and process steam pressure on energetic and exergetic efficiencies have been investigated. The results indicate that most of the exergy ...
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6.3 MWe - Combined Heat and Power Plant - Michelin Reifenwerke KGaA - Case Study
OWNER Michelin Hallstadt LOCATION Hallstadt, Germany PRODUCT Taurus 65 Gas Turbine CUSTOMER VALUE Reliable, Efficient, Environmentally Friendly Power In 2005, Michelin decided to expand the production at their Hallstadt plant. They were looking for a reliable, efficient and cost effective energy supply for their modern combined heal and power :CHF) plant, wh ch would prov de the complete ...
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Peaking power project - North Carolina Municipal Power Agency - Case Study
OWNER North Carolina Municipal Power Agency LOCATION Monroe, North Carolina. USA PRODUCT Titan 130 (12 MWe) Gas Turbine CUSTOMER VALUE Sustainable Energy North Carolina Municipal Power Agency Number 1 (NCMPA1) provides wholesale power to 19 cities and towns in western North Carolina. During peak penods the NCMPA1 was running critically low on electric capacity, putting customers in danger of ...
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Combined heat and power plant chemical industry Total Petrochemicals Feluy - Case Study
OWNER Total Petrochemicals Feluy LOCATION Belgium PRODUCT Titan 130 (15 MWe) Gas Turbine CUSTOMER VALUE Security of Steam Supply Total Petrochemicals Feluy's commitment to energy efficiency was at the center of their requirement for a cogeneration solution that would support their continuously operating polymer factory in Feluy, Belgium - the largest polymer factory in Europe. The project was ...
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Exergy analysis of BIGGT and EFGT cycles
Availability of biomass in Brazil makes this fuel a major candidate to increase its presence in the country's energy matrix. In North-eastern Brazil, biomass available from sugarcane industry represents an annual energy resource of 146 PJ at an average cost of US$ 1.5/GJ. This paper aims to analyse the match between biomass and gas turbines. Two types of power plants are studied: the BIGGT and ...
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Sensitivity analysis of component efficiencies on performance of a gas turbine cogeneration system
The performance of a 1000 kW gas-turbine cogeneration system was evaluated in terms of performance measures, such as net power, exergy efficiency of the system, and the unit costs of electricity and steam. The efficiencies of some components that have a significant affect on the performance were taken as physical variables. Sensitivity was evaluated by introducing parameters, defined as the ratio ...
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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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