Benefits of MS 6001B Gas Turbine in Cogeneration: The UEM Power Plant Case

1994 ◽  
Author(s):  
Pierre M. Remy ◽  
Yves M. Bolssenin ◽  
Michel M. Molière
Keyword(s):  
Power Plant ◽  
Gas Turbine ◽  
Steam Injection ◽  
Turn Of The Century ◽  
Fuel Oil ◽  
Pollutant Emissions ◽  
Flexible System ◽  
Major Turning Point ◽  
Heavy Duty Gas Turbine ◽  
The City

Long before the neologism “Cogeneration” was coined (around 1978), UEM’s Chambière Power Plant — which dates back to the turn of the century — was already supplying the city of Metz, east of France, with combined heat and power. In 1992, Chambière experienced a major turning point in its history with the installation of a new unit based on one MS 6001B “Heavy Duty” gas turbine. This model, rated 38 MWe - ISO and burning natural gas or fuel oil has become the core of a new cogeneration unit exhibiting an outstanding performance: - efficiency higher than 80% (LHV) providing a 20% energy saving in comparison to a conventional plant, - low pollutant emissions (NOx, CO, HC) and low contribution to the greenhouse-effect (CO2). The gas turbine has been equipped with two steam injection devices, for DeNOx and power augmentation respectively, resulting in a very flexible system. After describing the power plant and giving its main achievements in the fields of energy and emissions, the paper briefly presents several improvements intended to protect both the turbine and the environment.

Benefits of MS 6001B Gas Turbine in Cogeneration: The UEM Power Plant Case

1996 ◽  
Vol 118 (2) ◽  
pp. 331-336
Author(s):  
P. M. Remy ◽  
Y. M. Boissenin ◽  
M. M. Molie`re
Keyword(s):  
Power Plant ◽  
Gas Turbine ◽  
Steam Injection ◽  
Turn Of The Century ◽  
Fuel Oil ◽  
Pollutant Emissions ◽  
Flexible System ◽  
Major Turning Point ◽  
Heavy Duty Gas Turbine ◽  
The City

Long before the neologism “Cogeneration” was coined (around 1978), UEM’s Chambie`re Power Plant—which dates back to the turn of the century—was already supplying the city of Metz, east of France, with combined heat and power. In 1992, Chambie`re experienced a major turning point in its history with the installation of a new unit based on one MS 6001B “Heavy Duty” gas turbine. This model, rated 38 MWe-ISO and burning natural gas or fuel oil, has become the core of a new cogeneration unit exhibiting outstanding performance: • efficiency higher than 80 percent (LHV) providing a 20 percent energy saving in comparison to a conventional plant, • low pollutant emissions (NOx, CO, HC) and low contribution to the greenhouse effect (CO2). The gas turbine has been equipped with two steam injection devices, for DeNOx and power augmentation, respectively, resulting in a very flexible system. After describing the power plant and giving its main achievements in the fields of energy and emissions, the paper briefly presents several improvements intended to protect both the turbine and the environment.

scholarly journals A Fuel Oilpremix Burner for Gas Turbines: Development and Initial Operating Experience

1994 ◽  
Author(s):  
Bernhard Schetter ◽  
Hans Wilhelm Schabbehard ◽  
Ulf Josefson ◽  
Anders Ahlberg
Keyword(s):  
Power Plant ◽  
Gas Turbine ◽  
Gas Turbines ◽  
Operating Experience ◽  
Steam Injection ◽  
Fuel Oil ◽  
Nox Emissions ◽  
Premix Combustion ◽  
Additional Water ◽  
Fruitful Cooperation

Premix combustion of natural gas in Siemens hybrid burners has been carried out successfully in gas turbine power plant since 1986 and has enabled NOx emissions below 10 ppm to be achieved without additional water or steam injection. Based on this experience, the hybrid burner has been further developed for the premix combustion of fuel oil and is now in commercial operation in a Siemens Model V94.2 gas turbine at the Halmstad power plant in Sweden. The final testing of the new burners on site was carried out from January to September 1993 by courtesy of and in a fruitful cooperation with the client, SYDKRAFT AB. This paper sets out a number of requirements for successful premix combustion of fuel oil, describes how these requirements have been met and concludes with the results of site measurements of NOx and CO emissions. Base load NOx emissions were reduced to less than a quarter of their previous values without additional water or steam injection.

Conceptual Design for an Industrial Prototype Graz Cycle Power Plant

2002 ◽  
Author(s):  
H. Jericha ◽  
E. Go¨ttlich
Keyword(s):  
Power Plant ◽  
Gas Turbine ◽  
International Cooperation ◽  
Conceptual Design ◽  
Thermal Efficiency ◽  
Fuel Oil ◽  
Heavy Fuel Oil ◽  
Gasification Products ◽  
Prototype Design ◽  
Industrial Prototype

The gas turbine system GRAZ CYCLE has been thoroughly studied in terms of thermodynamics and turbomachinery layout. What is to be presented here is a prototype design for an industrial size plant, suited for NG-fuel and coal and heavy fuel oil gasification products, capable to retain the CO2 from combustion and at the same time able to achieve maximum thermal efficiency. The authors hope for an international cooperation to make such a plant available within a few years.

Impact of Inlet Fogging on the Performance of Steam Injected Cooled Gas Turbine Based Combined Cycle Power Plant

2017 ◽  
Author(s):  
Anoop Kumar Shukla ◽  
Onkar Singh
Keyword(s):  
Power Plant ◽  
Gas Turbine ◽  
Film Cooling ◽  
Pressure Ratio ◽  
Steam Injection ◽  
Combined Cycle ◽  
Specific Power ◽  
Temperature Cycle ◽  
Inlet Temperature ◽  
Combined Cycle Power Plant

Gas/steam combined cycle power plants are extensively used for power generation across the world. Today’s power plant operators are persistently requesting enhancement in performance. As a result, the rigour of thermodynamic design and optimization has grown tremendously. To enhance the gas turbine thermal efficiency and specific power output, the research and development work has centered on improving firing temperature, cycle pressure ratio, adopting improved component design, cooling and combustion technologies, and advanced materials and employing integrated system (e.g. combined cycles, intercooling, recuperation, reheat, chemical recuperation). In this paper a study is conducted for combining three systems namely inlet fogging, steam injection in combustor, and film cooling of gas turbine blade for performance enhancement of gas/steam combined cycle power plant. The evaluation of the integrated effect of inlet fogging, steam injection and film cooling on the gas turbine cycle performance is undertaken here. Study involves thermodynamic modeling of gas/steam combined cycle system based on the first law of thermodynamics. The results obtained based on modeling have been presented and analyzed through graphical depiction of variations in efficiency, specific work output, cycle pressure ratio, inlet air temperature & density variation, turbine inlet temperature, specific fuel consumption etc.

Design Improvement Survey for NOx Emissions Reduction of a Heavy-Duty Gas Turbine Partially Premixed Fuel Nozzle Operating With Natural Gas: Experimental Campaign

2015 ◽  
Author(s):  
Matteo Cerutti ◽  
Roberto Modi ◽  
Danielle Kalitan ◽  
Kapil K. Singh
Keyword(s):  
Pressure Drop ◽  
Natural Gas ◽  
Gas Turbine ◽  
Pollutant Emissions ◽  
Nox Emissions ◽  
Heavy Duty ◽  
Fuel Nozzle ◽  
Partially Premixed ◽  
Heavy Duty Gas Turbine ◽  
The Impact

As government regulations become increasingly strict with regards to combustion pollutant emissions, new gas turbine combustor designs must produce lower NOx while also maintaining acceptable combustor operability. The design and implementation of an efficient fuel/air premixer is paramount to achieving low emissions. Options for improving the design of a natural gas fired heavy-duty gas turbine partially premixed fuel nozzle have been considered in the current study. In particular, the study focused on fuel injection and pilot/main interaction at high pressure and high inlet temperature. NOx emissions results have been reported and analyzed for a baseline nozzle first. Available experience is shared in this paper in the form of a NOx correlative model, giving evidence of the consistency of current results with past campaigns. Subsequently, new fuel nozzle premixer designs have been investigated and compared, mainly in terms of NOx emissions performance. The operating range of investigation has been preliminarily checked by means of a flame stability assessment. Adequate margin to lean blow out and thermo-acoustic instabilities onset has been found while also maintaining acceptable CO emissions. NOx emission data were collected over a variety of fuel/air ratios and pilot/main splits for all the fuel nozzle configurations. Results clearly indicated the most effective design option in reducing NOx. In addition, the impact of each design modification has been quantified and the baseline correlative NOx emissions model calibrated to describe the new fuel nozzles behavior. Effect of inlet air pressure has been evaluated and included in the models, allowing the extensive use of less costly reduced pressure test campaigns hereafter. Although the observed effect of combustor pressure drop on NOx is not dominant for this particular fuel nozzle, sensitivity has been performed to consolidate gathered experience and to make the model able to evaluate even small design changes affecting pressure drop.

Influence of Steam Injection on Thermal Efficiency and Operating Temperature of GE-F5 Gas Turbines Applying VODOLEY System

2005 ◽  
Author(s):  
Mohsen Ghazikhani ◽  
Nima Manshoori ◽  
Davood Tafazoli
Keyword(s):  
Power Plant ◽  
Ambient Temperature ◽  
Gas Turbine ◽  
Mass Flow Rate ◽  
Mass Flow ◽  
Flow Rate ◽  
Thermal Efficiency ◽  
Gas Turbines ◽  
Steam Injection ◽  
Gas Turbine Cycle

An industrial gas turbine has the characteristic that turbine output decreases on hot summer days when electricity demand peaks. For GE-F5 gas turbines of Mashad Power Plant when ambient temperature increases 1° C, compressor outlet temperature increases 1.13° C and turbine exhaust temperature increases 2.5° C. Also air mass flow rate decreases about 0.6 kg/sec when ambient temperature increases 1° C, so it is revealed that variations are more due to decreasing in the efficiency of compressor and less due to reduction in mass flow rate of air as ambient temperature increases in constant power output. The cycle efficiency of these GE-F5 gas turbines reduces 3 percent with increasing 50° C of ambient temperature, also the fuel consumption increases as ambient temperature increases for constant turbine work. These are also because of reducing in the compressor efficiency in high temperature ambient. Steam injection in gas turbines is a way to prevent a loss in performance of gas turbines caused by high ambient temperature and has been used for many years. VODOLEY system is a steam injection system, which is known as a self-sufficient one in steam production. The amount of water vapor in combustion products will become regenerated in a contact condenser and after passing through a heat recovery boiler is injected in the transition piece after combustion chamber. In this paper the influence of steam injection in Mashad Power Plant GE-F5 gas turbine parameters, applying VODOLEY system, is being observed. Results show that in this turbine, the turbine inlet temperature (T3) decreases in a range of 5 percent to 11 percent depending on ambient temperature, so the operating parameters in a gas turbine cycle equipped with VODOLEY system in 40° C of ambient temperature is the same as simple gas turbine cycle in 10° C of ambient temperature. Results show that the thermal efficiency increases up to 10 percent, but Back-Work ratio increases in a range of 15 percent to 30 percent. Also results show that although VODOLEY system has water treatment cost but by using this system the running cost will reduce up to 27 percent.

scholarly journals Fuel Oil Storage Effect and Impact on Utility’s Gas Turbine Operation

1991 ◽  
Author(s):  
Oscar Backus
Keyword(s):  
Natural Gas ◽  
Gas Turbine ◽  
Gas Turbines ◽  
Electric Utility ◽  
Fuel Oil ◽  
Oil Storage ◽  
Utility Boilers ◽  
Oil Embargo ◽  
Oil Inventories ◽  
The City

The City of Austin Electric Utility, like other utilities in the country that experienced the natural gas curtailments brought about by the Arab oil embargo of the late seventies, purchased several million gallons of fuel oil and stored it for subsequent use as an alternative fuel in the event another gas shortage crisis befell the utility industry. As the price and availability of natural gas improved, gas was once again used exclusively as the primary fuel in utility boilers and gas turbines. Remaining fuel oil inventories were secured and attention to the fuel oil’s integrity and chemical stability over the years was forgotten. This paper focuses on the potential degradation of fuel oil that has been stored for several years, its impact on gas turbine operation, its rehabilitation, and a program for continued maintenance to insure reliable operation and compliance with equipment vendor specifications and operating permit emission requirements.

Repowering: An Option for Refurbishment of Old Thermal Power Plants in Latin-American Countries

2010 ◽  
Author(s):  
Washington Orlando Irrazabal Bohorquez ◽  
Joa˜o Roberto Barbosa ◽  
Luiz Augusto Horta Nogueira ◽  
Electo E. Silva Lora
Keyword(s):  
Power Plant ◽  
Natural Gas ◽  
Steam Turbine ◽  
Gas Turbine ◽  
Power Plants ◽  
Thermal Power ◽  
Rankine Cycle ◽  
Combined Cycle ◽  
Fuel Oil ◽  
Thermal Power Plants

The operational rules for the electricity markets in Latin America are changing at the same time that the electricity power plants are being subjected to stronger environmental restrictions, fierce competition and free market rules. This is forcing the conventional power plants owners to evaluate the operation of their power plants. Those thermal power plants were built between the 1960’s and the 1990’s. They are old and inefficient, therefore generating expensive electricity and polluting the environment. This study presents the repowering of thermal power plants based on the analysis of three basic concepts: the thermal configuration of the different technological solutions, the costs of the generated electricity and the environmental impact produced by the decrease of the pollutants generated during the electricity production. The case study for the present paper is an Ecuadorian 73 MWe power output steam power plant erected at the end of the 1970’s and has been operating continuously for over 30 years. Six repowering options are studied, focusing the increase of the installed capacity and thermal efficiency on the baseline case. Numerical simulations the seven thermal power plants are evaluated as follows: A. Modified Rankine cycle (73 MWe) with superheating and regeneration, one conventional boiler burning fuel oil and one old steam turbine. B. Fully-fired combined cycle (240 MWe) with two gas turbines burning natural gas, one recuperative boiler and one old steam turbine. C. Fully-fired combined cycle (235 MWe) with one gas turbine burning natural gas, one recuperative boiler and one old steam turbine. D. Fully-fired combined cycle (242 MWe) with one gas turbine burning natural gas, one recuperative boiler and one old steam turbine. The gas turbine has water injection in the combustion chamber. E. Fully-fired combined cycle (242 MWe) with one gas turbine burning natural gas, one recuperative boiler with supplementary burners and one old steam turbine. The gas turbine has steam injection in the combustion chamber. F. Hybrid combined cycle (235 MWe) with one gas turbine burning natural gas, one recuperative boiler with supplementary burners, one old steam boiler burning natural gas and one old steam turbine. G. Hybrid combined cycle (235 MWe) with one gas turbine burning diesel fuel, one recuperative boiler with supplementary burners, one old steam boiler burning fuel oil and one old steam turbine. All the repowering models show higher efficiency when compared with the Rankine cycle [2, 5]. The thermal cycle efficiency is improved from 28% to 50%. The generated electricity costs are reduced to about 50% when the old power plant is converted to a combined cycle one. When a Rankine cycle power plant burning fuel oil is modified to combined cycle burning natural gas, the CO2 specific emissions by kWh are reduced by about 40%. It is concluded that upgrading older thermal power plants is often a cost-effective method for increasing the power output, improving efficiency and reducing emissions [2, 7].

Theoretical and Experimental Analysis of Heavy Duty Gas Turbine Performance Depending on Ambient Conditions

2003 ◽  
Author(s):  
S. Brusca ◽  
R. Lanzafame
Keyword(s):  
Mathematical Model ◽  
Gas Turbine ◽  
Thermodynamic Analysis ◽  
Engine Performance ◽  
Fuel Oil ◽  
Engine Control ◽  
Heavy Duty ◽  
Ambient Conditions ◽  
Control Logic ◽  
Heavy Duty Gas Turbine

A mathematical model of a heavy duty gas turbine has been implemented using GateCycle™ code. This model is able to simulate the engine behavior running on syngas and fuel oil. Also engine control logic is implemented using Microsoft Excel™ VBA language. The model implemented has been finely tuned and tested with measured data. Test results show that it is able to simulate engine running in on-design and off-design conditions. Using this model, an extensive thermodynamic analysis of light fuel oil and syngas fed engine performance has been carried out in respect of ambient conditions. As it is possible to see in the results of the thermodynamic analysis, at high air temperatures performance reduction occur. Relative humidity have a slightly effect on engine performance when the latter is running on syngas. Instead it doesn’t have a relevant effect on the performance of the engine running on light liquid fuel oil in all the range of ambient temperature investigated. Results of this analysis also show the correct replication of the engine control system. In conclusion, the developed mathematical model is able to simulate gas turbine operations with low errors. So that, it could be used in order to optimise engine performance at the ambient conditions that occur for the site of the IGCC Complex in which gas turbine has integrated as topper.

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