scholarly journals Remote operation and monitoring of a micro aero gas turbine

2017 ◽  
Vol 121 (1242) ◽  
pp. 1051-1065
Author(s):  
M. Diakostefanis ◽  
T. Nikolaidis ◽  
S. Sampath ◽  
T. Triantafyllou
Keyword(s):  
Real Time ◽  
Gas Turbine ◽  
Low Cost ◽  
Internet Technology ◽  
Test Facility ◽  
Diagnostic Tools ◽  
Internet Applications ◽  
Performance Simulation ◽  
Micro Gas Turbine ◽  
Remote Operation

ABSTRACTInternet applications have been extended to various aspects of everyday life and offer services of high reliability and security at relatively low cost. This project presents the design of a reliable, safe and secure software system for real-time remote operation and monitoring of an aero gas turbine with utilisation of existing internet technology, whilst the gas turbine is installed in a remote test facilityThis project introduces a capability that allows remote and flexible operation of an aero gas turbine throughout the whole operational envelope, as required by the user at low cost, by exploiting the available Internet technology. Remote operation of the gas turbine can be combined with other remote Internet applications to provide very powerful gas-turbine performance-simulation experimental platforms and real-time performance monitoring tools, whilst keeping the implementation cost at low levels.The gas turbine used in this experiment is an AMT Netherlands Olympus micro gas turbine and a spiral model approach was applied for the software. The whole process was driven by risk mitigation.The outcome is a fully functional software application that enables remote operation of the micro gas turbine whilst constantly monitors the performance of the engine according to basic gas turbine control theory. The application is very flexible, as it runs with no local installation requirements and includes provisions for expansion and collaboration with other online performance simulation and diagnostic tools.

Experimental Study of Combustion on a Micro Gas Turbine Combustor

2008 ◽  
Author(s):  
Feng-Shan Wang ◽  
Wen-Jun Kong ◽  
Bao-Rui Wang
Keyword(s):  
Gas Turbine ◽  
Pressure Loss ◽  
Loss Factor ◽  
Total Pressure ◽  
Combustion Efficiency ◽  
Total Pressure Loss ◽  
Test Facility ◽  
Inlet Temperature ◽  
Micro Gas Turbine ◽  
Oil Fuel

A research program is in development in China as a demonstrator of combined cooling, heating and power system (CCHP). In this program, a micro gas turbine with net electrical output around 100kW is designed and developed. The combustor is designed for natural gas operation and oil fuel operation, respectively. In this paper, a prototype can combustor for the oil fuel was studied by the experiments. In this paper, the combustor was tested using the ambient pressure combustor test facility. The sensors were equipped to measure the combustion performance; the exhaust gas was sampled and analyzed by a gas analyzer device. From the tests and experiments, combustion efficiency, pattern factor at the exit, the surface temperature profile of the outer liner wall, the total pressure loss factor of the combustion chamber with and without burning, and the pollutants emission fraction at the combustor exit were obtained. It is also found that with increasing of the inlet temperature, the combustion efficiency and the total pressure loss factor increased, while the exit pattern factor coefficient reduced. The emissions of CO and unburned hydrogen carbon (UHC) significantly reduced, but the emission of NOx significantly increased.

scholarly journals A Unique Small Gas Turbine Test Facility for Low-Cost Investigations of Ceramic Rotor Materials and Thermal Barrier Coatings

1998 ◽  
Author(s):  
Björn Schenk ◽  
Torsten Eggert ◽  
Helmut Pucher
Keyword(s):  
Combustion Chamber ◽  
Gas Turbine ◽  
Gas Turbines ◽  
Low Cost ◽  
Temperature Gradients ◽  
Test Facility ◽  
Small Scale ◽  
Transient Temperature ◽  
Turbine Inlet ◽  
Turbine Rotors

The paper describes a test facility for small-scale gas turbines, which basically has been designed and assembled at the Institute of Combustion Engines of the Technical University Berlin. The facility exposes ceramic rotor components to the most significant loads that occur during real gas turbine operation in a clearly predefined manner (high circumferential velocities and highest turbine inlet temperatures). The test facility allows the investigation of bladed radial inflow turbine rotors, as well as — in a preceding step — geometrically simplified ceramic or coated metallic rotors. A newly designed, ceramically lined, variable geometry combustion chamber allows turbine inlet temperatures up to 1450°C (2640 F). A fast thermal shock unit (switching time of about 1s), which is integrated into the test facility between the combustion chamber and the turbine scroll, can be used to create, for example, severe transient temperature gradients within the rotor components to simulate gas turbine trip conditions. In order to generate steady state temperature gradients, especially during disk testing, the rotor components can be subjected to an impingement cooling of the rotor back face (uncoated in case of TBC-testing). The test facility is additionally equipped with a non-contact transient temperature measurement system (turbine radiation pyrometry) to determine the test rotor surface temperature distribution during operation. Apart from the possibilities of basic rotor material investigations, the test facility can also be used to automatically generate compressor and turbine performance characteristics maps. The latter might be used to assess the aerodynamic performance of bladed ceramic radial inflow or mixed flow turbine rotors with respect to manufacturing tolerances due to near-net-shape forming processes (e.g., gelcasting or injection molding).

A Real Time Dynamic Model of a Micro-Gas Turbine CHP System With Regeneration

2007 ◽  
Author(s):  
Agostino Gambarotta ◽  
Iacopo Vaja
Keyword(s):  
Heat Exchanger ◽  
Real Time ◽  
Gas Turbine ◽  
Power Output ◽  
State Variables ◽  
Counter Flow ◽  
Exhaust Gases ◽  
Micro Gas Turbine ◽  
Flow Surface ◽  
Net Power Output

A model of a Micro Gas Turbine system for cogeneration is presented. The analyzed plant is based on an aero derivative Gas Turbine with a single staged centrifugal Compressor and an axial Turbine with two stages. The net power output is 260 kWe in simple cycle mode. Exhaust gases can be sent to a counter flow surface compact heat exchanger for thermal regeneration, which turns to be thermodynamically favourable in this range of power output. If a thermal load is required the system operates in CHP configuration and part, or the whole, of turbine exhaust gases are sent to a Heat Recovery Boiler for water heating. The HRB is, in analogy to the Regenerator, a counter flow surface heat exchanger. The mass of hot gases directed to each heat exchanger can be controlled by a regulation valve that allows, for a given fuel mass flow rate, to enhance the net power output or to privilege the thermal generation at the HRB. This degree of freedom allows the system to operate at different cogeneration degrees, thus covering many power-to-heat demand ratios. The whole system is modeled in the Simulink® environment, a powerful tool for dynamic system analysis. All components are studied and a mathematical representation for each of them is described. Equations are then implemented in Simulink® allowing to create customized blocks of different components which are then properly coupled, respecting the physical causality of the real system, by connections that may represent either mechanical or fluid dynamic links. Models are classified depending on whether state variables for the considered component can be defined or not. Compressor and turbine are represented as “Black Box” components without state, while the combustion chamber is modelled as a “white box” applying energy and mass conservation equations with three state variables. Heat exchangers are considered as “White Box” without state, and the physics of the heat exchange process is studied according to the Effectiveness-NTU method. A further dynamic equation is the shaft dynamic balance equation. Model results are reported in the paper in several transient conditions: in all cases the computational time proved to be lower than real time.

Real-Time Test Techniques for Sea-Salt Aerosol-Separator Evaluation

1977 ◽  
Vol 99 (4) ◽  
pp. 580-586 ◽  
Author(s):  
E. W. Mihalek ◽  
C. N. Shen
Keyword(s):  
Real Time ◽  
Gas Turbine ◽  
Marine Environment ◽  
Power Plants ◽  
Development Program ◽  
Sea Salt ◽  
Test Facility ◽  
Inlet System ◽  
Sea Salt Aerosol ◽  
Time Test

Gas turbine power plants are increasingly finding use as prime movers in Naval and commercial vessels, at-sea drilling platforms, and land-based power generating stations. With this rise in usage, the life of the machine becomes a consideration when operation in a marine environment is necessary. Limited data are available on the subject of marine aerosols and even less information can be found on the necessary requirements for effective separators for the ship-encountered marine environment. In order to specify the inlet system performance required by the new classes of gas turbine powered U.S. Navy ships, the Naval Ship Engineering Center (NAVSEC) has funded a gas turbine engine inlet separator test program to be performed at the Naval Air Propulsion Test Center (NAPTC) as one phase of a total inlet development program. This paper discusses the NAPTC sea-salt aerosol test facility and the real-time test techniques and instrumentation utilized.

Thermodynamic Analysis of Innovative Micro Gas Turbine Cycles

2014 ◽  
Author(s):  
Homam Nikpey ◽  
Mohammad Mansouri Majoumerd ◽  
Mohsen Assadi ◽  
Peter Breuhaus
Keyword(s):  
Gas Turbine ◽  
System Performance ◽  
Energy Demand ◽  
Test Facility ◽  
Base Case ◽  
Micro Gas Turbine ◽  
Improvement Potential ◽  
Full Load Operation ◽  
Additional Demand ◽  
Gas Recirculation

The growing global energy demand has been faced with increasing concerns about climate change over recent decades. In order to cover the additional demand and to mitigate CO2 emissions, one option is to utilize renewable energies such as solar and wind power. These energy sources are, however, intermittent by nature. Therefore, it is inevitable that a quick balancing and back-up power should be available to maintain grid stability at a certain level. Gas turbine (GT) technology could certainly be one alternative for back-up/balancing power and could be utilized to complement renewable energy in the energy market. However, the GT industry needs to consider innovative cycle configurations to attain higher system performance and lower emissions and to cope with renewable powers. In this regard, the humid air turbine (HAT) cycle and the exhaust gas recirculation (EGR) cycle are amongst the promising GT cycles. In the current study a micro gas turbine (MGT), a Turbec T100, has been selected as the base case for further investigation. A thermodynamic model for the base case has been developed in IPSEpro software and validated using experimental data obtained from an existing test facility in Stavanger, Norway. Based on this validated model, system performance calculations for other alternative cycles, i.e. EGR and HAT cycles, have been carried out. Results confirm that the performance improvement potential is significant for the HAT cycle with only minor modifications to the baseline MGT cycle. The EGR cycle, with a maximum attainable recirculation ratio of 50%, shows a slightly lower level of performance compared to the base case. However, its potential for future CO2 capture is greater compared to the base case and the HAT cycle. The overall cycle efficiencies for the base case, the HAT, and the EGR cycles at full load operation, i.e. 100kW power, are 31.1%, 32.8%, and 30.4%, respectively.

A Real-Time Spatial SOFC Model for Hardware-Based Simulation of Hybrid Systems

2011 ◽  
Author(s):  
Dimitri Hughes ◽  
William J. Wepfer ◽  
Kevin Davies ◽  
J. Christopher Ford ◽  
Comas Haynes ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Real Time ◽  
Gas Turbine ◽  
Hybrid Systems ◽  
Power Plants ◽  
Large Scale ◽  
Test Facility ◽  
Heating And Cooling ◽  
Dynamic Hybrid ◽  
The One

Solid oxide fuel cell (SOFC)/ gas turbine (GT) hybrid systems possess the capability to nearly double the efficiency of standard coal-fired power plants which are currently being used for large scale power production. For the purposes of investigating and developing this technology, a SOFC/GT hybrid test facility was developed at the U.S. DOE National Energy Technology Laboratory (NETL) in Morgantown, WV as part of the Hybrid Performance (HyPer) project. The HyPer facility utilizes hardware-in-the-loop technology to simulate coupled SOFC operation with gas turbine hardware in a hybrid arrangement. This paper describes and demonstrates the capabilities of the one-dimensional, real-time operating SOFC model that has been developed and successfully integrated into the HyPer facility. The model presented is designed to characterize SOFC operation over a broad and extensive operating range including inert heating and cooling, standard “on-design” conditions and extreme off-design conditions. The model receives dynamic, system-dependent modeling inputs from facility hardware and calculates a comprehensive set of SOFC operational responses, thus simulating SOFC operation while coupled with a gas turbine. In addition to characterizing SOFC operation, the model also drives the only heat source in the facility to represent fuel cell subsystem release of thermal effluent to the turbine subsystem. Operating parameters such as solid and oxidant stream temperatures, fuel stream compositions, current density, Nernst potential and polarization losses are produced by the model in spatiotemporal manner. The capability of the model to characterize SOFC operation, within dynamic hybrid system feedback, through inert heat up and a step change in load is presented and analyzed.

Performance and Emissions of a Micro-Gas Turbine Fueled with LPG/Producer Gas in a Dual Fuel Mode

2014 ◽  
Vol 695 ◽  
pp. 482-486
Author(s):  
Hussain Sadig ◽  
Shaharin Anwar Sulaiman ◽  
Mior A. Said ◽  
Suzana Yusup
Keyword(s):  
Gas Turbine ◽  
Low Cost ◽  
Dual Fuel ◽  
Emission Characteristics ◽  
Producer Gas ◽  
Liquefied Petroleum Gas ◽  
Micro Gas Turbine ◽  
Performance And Emissions ◽  
Temperature Efficiency

In this paper, a tubular combustor along with a single shaft micro-gas turbine system was experimentally tested with a producer gas fuels. In order to carry out the experiments, a low cost single shaft micro-gas turbine was developed. The system was characterized first with liquefied petroleum gas (LPG) and then tested with two producer gas fuels in a dual fuel mode. The tests were examined in terms of LPG fuel replacement, turbine entrance temperature, efficiency and emission characteristics at different LPG fuel replacement ratios. The study showed a maximum LPG replacement of 42% and 56% on energy basis for producer gas1 and producer gas2, respectively.

scholarly journals Preliminary study of Low-Cost Micro Gas Turbine

2016 ◽  
Vol 160 ◽  
pp. 012036
Author(s):  
M. Fikri ◽  
M. Ridzuan ◽  
Hamidon Salleh
Keyword(s):  
Gas Turbine ◽  
Low Cost ◽  
Micro Gas Turbine ◽  
Preliminary Study
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