Gas Turbine Commissioning Procedure

1979 ◽  
Vol 101 (1) ◽  
pp. 125-129 ◽  
Author(s):  
R. Oegerli
Keyword(s):  
Gas Turbine ◽  
Measuring Equipment ◽  
Initial Period ◽  
Power Station ◽  
Whole Plant ◽  
Paper Work ◽  
Acceptance Tests ◽  
Insight Into ◽  
Service Engineer

Although new, modern gas turbine power station with its control and supervisory systems are more complex than ten years ago, Brown Boveri still uses the same commissioning procedure, because of the good experience gained throughout the years. The main features are that: One commissioning engineer is responsible for the whole plant and is trained to commission all systems by himself. Specific records are provided for every unit with all settings, characteristics and special instructions in addition to general instructions, settings and characteristics. The paper explains the sequence of the works and gives an insight into: (1) Checks, tests and adjustments before shipping, (2) Commissioning work on site, (3) Commissioning schedule, (4) Commissioning personnel schedule; (5) Instrumentation and measuring equipment on site, (6) Paper work on site, reporting, (7) Acceptance tests/provisional acceptance, (8) Instruction of customer’s personnel, (9) Supervision during initial period of operation, service engineer.

scholarly journals First Insight into Nutraceutical Properties of Local Salento Cichorium intybus Varieties: NMR-Based Metabolomic Approach

2021 ◽  
Vol 18 (8) ◽  
pp. 4057
Author(s):  
Chiara Roberta Girelli ◽  
Francesca Serio ◽  
Rita Accogli ◽  
Federica Angilè ◽  
Antonella De Donno ◽  
...  
Keyword(s):  
1H Nmr ◽  
Cichorium Intybus ◽  
Resonance Spectroscopy ◽  
Metabolic Profiles ◽  
Whole Plant ◽  
Different Content ◽  
Insight Into ◽  
Nutraceutical Properties ◽  
Metabolomic Approach

Background: Plants of genus Cichorium are known for their therapeutic and nutraceutical properties determined by a wealth of phytochemical substances contained in the whole plant. The aim of this paper was to characterize the metabolic profiles of local Salento chicory (Cichorium intybus L.) varieties (“Bianca”, “Galatina”, “Leccese”, and “Otranto”) in order to describe their metabolites composition together with possible bioactivity and health beneficial properties. Methods: The investigation was performed by 1H-NMR spectroscopy and Multivariate Analysis (MVA), by which the metabolic profiles of the samples were easily obtained and compared. Results: The supervised Partial Least Squares Discriminant Analysis (PLS-DA) analysis showed as “Bianca” and “Galatina” samples grouped together separated by “Leccese” and “Otranto” varieties. A different content of free amino acids and organic acids was observed among the varieties. In particular a high content of cichoric and monocaffeoyl tartaric acid was observed for the “Leccese” variety. The presence of secondary metabolites adds significant interest in the investigation of Cichorium inthybus, as this vegetable may benefit human health when incorporated into the diet. Conclusions: The 1H-NMR (Nuclear Magnetic Resonance Spectroscopy) based characterization of Salento chicory varieties allowed us to determine the potential usefulness and nutraceutical properties of the product, also providing a method to guarantee its authenticity on a molecular scale.

CFD ANALYSIS OF FIRST STAGE NOZZLE COOLING OPTIMIZATION IN POWER STATION GAS TURBINE

2015 ◽  
Vol 76 (5) ◽  
Author(s):  
Hasril Hasini ◽  
Siti Sarah Ain Fadhil ◽  
Mohd Nasharuddin Mohd Jaafar ◽  
Norhazwani Abdul Malek ◽  
Mohd. Haffis Ujir
Keyword(s):  
Gas Turbine ◽  
Transfer Problem ◽  
Maximum Yield ◽  
Safety Margin ◽  
Power Station ◽  
Case Scenario ◽  
Preliminary Calculation ◽  
Worst Case ◽  
Cloud Data ◽  
Computational Fluid Dynamics Analysis

Computational Fluid Dynamics analysis on First Stage Nozzle in full scale multi-stage power station gas turbine has been carried out. The main aim is to investigate the turbine thermal performance when cooling rate decreases at certain level. All calculations were executed using commercial CFD code, ANSYS FLUENT which is able to accurately predict the flow and conjugate heat transfer problem as demonstrated in this investigation. The modelling of gas turbine nozzle is assisted by geometric cloud data obtained from 3D scan. Preliminary calculation shows that at the given worst case scenario for, the maximum thermal stress experienced by the component is within the maximum yield strength of the nozzle material. However, the safety margin between the predicted stress and maximum allowable stress is very small. 

scholarly journals Performance of the Integrated Gas and Steam Cycle (IGSC) for Reheat Gas Turbines

1987 ◽  
Author(s):  
Kazuo Takeya ◽  
Hajime Yasui
Keyword(s):  
Gas Turbine ◽  
Gas Turbines ◽  
Ceramic Coating ◽  
Research Association ◽  
Performance Tests ◽  
Gas Temperature ◽  
Power Station ◽  
Engineering Research ◽  
Blade Cooling ◽  
Advanced Technologies

In 1978, the Japanese government started a national project for energy conservation called the Moonlight Project. The Engineering Research Association for Advanced Gas Turbines was selected to research and develop an advanced gas turbine for this project. The development stages were planned as follows: First, the development of a reheat gas turbine for a pilot plant (AGTJ-100A), and second, a prototype plant (AGTJ-100B). The AGTJ-100A has been undergoing performance tests since 1984 at the Sodegaura Power Station of the Tokyo Electric Power Co., Inc. (TEPCO). The inlet gas temperature of the high pressure turbine (HPT) of the AGTJ-100A is 1573K, while that of the AGTJ-100B is 100K higher. Therefore, various advanced technologies have to be applied to the AGTJ-100B HPT. Ceramic coating on the HPT blades is the most desirable of these technologies. In this paper, the present situation of development, as well as future R & D plans for ceramic coating, is taken into consideration. Steam blade cooling is applied for the IGSC.

The 900 MW Combined Cycle Gas Turbine Power Station Project at Killingholme

1993 ◽  
Vol 207 (3) ◽  
pp. 147-155
Author(s):  
T E Chappell
Keyword(s):  
Environmental Impact ◽  
Gas Turbine ◽  
Operating Experience ◽  
Combined Cycle ◽  
Power Station ◽  
Full Load ◽  
Technical Description

PowerGen's 900 MW combined cycle gas turbine (CCGT) power station at Killingholme achieved full load output over two months before the scheduled date for full commercial load and less than 34 months after the turnkey contract was placed. This paper reviews the development of PowerGen's first CCGT power station, discusses the reasons for the choice of this type of plant and examines early operating experience. The contract strategy, a technical description of the plant, the project programme and the environmental impact of the plant relative to a conventional coal-fired power station are also included.

Optimization of an Advanced Combined Cycle and its Application to the Yokohama Thermal Power Station No. 7 and No. 8 Groups

1992 ◽  
Author(s):  
Zengo Aizawa ◽  
William Carberg
Keyword(s):  
Electric Power ◽  
Gas Turbine ◽  
Thermal Power Station ◽  
Gas Turbines ◽  
Thermal Power ◽  
Combined Cycle ◽  
Power Station ◽  
Detailed Design ◽  
Optimization Study ◽  
Improved Performance

Combined cycle technology was successfully applied to the 2000 MW Tokyo Electric Power Co. (TEPCO) Futtsu Station. The fourteen 165 MW single shaft combined cycle Stages were commissioned between 1985 and 1988. Since that time, experience has been accumulated on these 2000 deg F (1100 deg C) class gas turbine based Stages. With the advent of 2300 deg F (1300 deg C) class gas turbines and dry low NOx technologies, an advanced combined cycle with substantially improved performance became possible. TEPCO commissioned General Electric, Toshiba and Hitachi to perform a study to optimize the use of these technologies. The study was completed and the participants are now doing detailed design of a plant consisting of eight 350 MW single shaft combined cycle Stages. The plant will be designated the Yokohama Thermal Power Station No. 7 and No. 8 Groups. This paper discusses experience gained at the Futtsu Station, the results of the optimization study for an advanced combined cycle and the progress of the design for Yokohama Groups No. 7 and No. 8.

Testing the type GT-10S (SGT 700) gas turbine units at the Sochi thermal power station

2006 ◽  
Vol 53 (12) ◽  
pp. 947-955
Author(s):  
S. V. Malakhov ◽  
G. G. Ol’khovskii ◽  
V. A. Golubnichii
Keyword(s):  
Gas Turbine ◽  
Thermal Power Station ◽  
Thermal Power ◽  
Power Station

Advanced Gas Turbine Technology for Sendai Thermal Power Station, Unit No. 4

2011 ◽  
Author(s):  
Sadahiro Ohno ◽  
Hiroyuki Yamazaki ◽  
Naoki Hagi ◽  
Hidehiko Nishimura
Keyword(s):  
Carbon Dioxide ◽  
Natural Gas ◽  
Gas Turbine ◽  
Thermal Power Station ◽  
Thermal Efficiency ◽  
Power Plants ◽  
Thermal Power ◽  
Power Station ◽  
Advanced Technologies ◽  
Station Unit

Worldwide environmental concerns are placing center focus on effective utilization of energy and carbon dioxide emission reductions. The power generation industry has engaged in the replacement of existing aged thermal power plants with state-of-the-art natural gas fired power plants capable of achieving considerable reductions in energy consumption and emissions of green house gases. The replacement of three exiting 175MW heavy oil and coal-firing power plants with a highly effective 446MW gas-firing combined cycle power plant owned and operated by Tohoku Electric Power Company is one example of this effort. The construction of the new Sendai thermal power station, Unit No.4 started in November, 2007 achieving commercial operation in July, 2010. Mitsubishi Heavy Industries most recent 50Hz F class gas turbine upgrade, the M701F4 was adopted for this project. This engine is based on the successful M701F3 gas turbine with a 6% air flow increase and a slight bump of the turbine inlet temperature in order to achieve better thermal efficiency and more power output. The application of these advanced technologies resulted in a plant thermal efficiency of approximately 58% LHV of the new unit from the original 43% of the previous coal-firing units. The application of these advanced technologies and the use of natural gas resulted in a 2/3 carbon-dioxide emissions reduction.

The Use of a Hybrid Computer in the Optimization of Gas Turbine Control Parameters

1973 ◽  
Vol 95 (3) ◽  
pp. 257-264 ◽  
Author(s):  
H. I. H. Saravanamuttoo ◽  
B. D. MacIsaac
Keyword(s):  
Computer Simulation ◽  
Gas Turbine ◽  
Control Parameters ◽  
Turbojet Engine ◽  
Hybrid Computer ◽  
Insight Into ◽  
Hybrid Computer Simulation

This paper discusses the hybrid computer simulation of a single-spool turbojet engine. The problem is approached from the viewpoint of engineering thermodynamics, using the normal compressor and turbine characteristics. This was found to yield an extremely flexible simulation capable of operation over the entire running range. The simulation was used to investigate methods of improving the thrust response and it was found that a detailed insight into the engine dynamics permitted a significant improvement in thrust response.

Axial Compressor Degradation Effects on Heavy Duty Gas Turbines Overall Performances

2013 ◽  
Author(s):  
Pio Astrua ◽  
Stefano Cecchi ◽  
Stefano Piola ◽  
Andrea Silingardi ◽  
Federico Bonzani
Keyword(s):  
Gas Turbine ◽  
Gas Turbines ◽  
Axial Compressor ◽  
Performance Parameters ◽  
Heavy Duty ◽  
Compressor Blades ◽  
Modular Model ◽  
Secondary Air ◽  
The Impact ◽  
Insight Into

The operation of a gas turbine is the result of the aero-thermodynamic matching of several components which necessarily experience aging and degradation over time. An approach to treat degradation phenomena of the axial compressor is provided, with an insight into the impact they have on compressor operation and on overall GT performances. The analysis is focused on the surface fouling of compressor blades and on rotor tip clearances variation. A modular model is used to simulate the gas turbine operation in design and off-design conditions and the aerodynamic impact of fouling and rotor tip clearances increase is assessed by means of dedicated loss and deviation correlations implemented in the 1D mid-streamline code of the compressor modules. The two different degradation sources are individually considered and besides the overall GT performance parameters, the analysis includes an evaluation of the compressor degradation impact on the secondary air system.

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