Thermodynamic analysis of a closed-cycle, solar gas-turbine plant

1993 ◽  
Vol 34 (8) ◽  
pp. 657-661 ◽  
Author(s):  
P. Gandhidasan
Keyword(s):  
Gas Turbine ◽  
Thermodynamic Analysis ◽  
Closed Cycle ◽  
Turbine Plant ◽  
Gas Turbine Plant

Internally Fired Semi-Closed Cycle Gas Turbine Plant for Naval Propulsion

1956 ◽  
Author(s):  
S. H. DeWitt ◽  
W. B. Boyum
Keyword(s):  
Gas Turbine ◽  
Closed Cycle ◽  
Load Range ◽  
Turbine Plant ◽  
Consumption Rates ◽  
Equipment Development ◽  
Westinghouse Electric Corporation ◽  
Gas Turbine Plant ◽  
Westinghouse Electric ◽  
Low Sulfur

An Internally fired semi-closed cycle gas turbine for Naval propulsion was designed and built for the U.S. Navy by the Westinghouse Electric Corporation. Due to a revision of the overall Navy propulsion program the plant was not tested at design conditions or mode of operation, but feasibility information for this configuration of gas turbine plant was obtained. Plant tests indicated that this cycle configuration can be expected to attain a significant reduction in shipboard space and weight requirements while matching existing conventional propulsion plant fuel and air consumption rates over a wide load range. The plant further is simply controlled to minimize manning personnel, permit bridge control, and has a brief transient period from cruise power to full load. Plants of this cycle configuration can be expected to produce large powers such as required for main ship propulsion while employing components of the size where considerable industrial experience has been accumulated. Fouling and corrosion of the internally fired, semi-closed cycle gas turbine were evaluated by the tests. Conventional gas turbine components are satisfactory for low sulfur fuel operation, and with additional precooler equipment development it is expected that high sulfur fuel operation will be achieved.

scholarly journals Long-Time Operating Experiences With Oberhausen Closed-Cycle Gas-Turbine Plant

1970 ◽  
Author(s):  
Gerhard Deuster
Keyword(s):  
Heat Exchanger ◽  
Gas Turbine ◽  
Closed Cycle ◽  
Turbine Plant ◽  
Air Heater ◽  
Cold State ◽  
Long Time ◽  
Gas Turbine Plant

Calculations made prior to building the Oberhausen closed-cycle gas-turbine plant have been fully confirmed after nine years of operation. Operating experiences reviewed are (a) with the air heater, including radiation parts, convection part, brickwork, and double-jacket pipe; (b) with the machine set, including LP and HP compressors, turbine, and gearing; (c) with the heat-exchanging units, including heat exchanger, precooler, and intercoolers; (d) deceleration and acceleration of the machine to/from cold state. Breakdowns and failures referred to were of the sort that can be avoided both safely and cheaply by applying the experience we have now accumulated.

scholarly journals HTGR-GT Primary Coolant Transient Resulting From Postulated Turbine Deblading

1981 ◽  
Author(s):  
G. J. Cadwallader ◽  
R. K. Deremer
Keyword(s):  
Gas Turbine ◽  
Expansion Wave ◽  
Closed Cycle ◽  
Primary Coolant ◽  
Turbine Plant ◽  
Fluid Transient ◽  
Gas Turbine Plant ◽  
Flow Resistances ◽  
Coolant System ◽  
Rapid Pressure

The turbomachine is located within the primary coolant system of a nuclear closed cycle gas turbine plant (HTGR-GT). The deblading of the turbine can cause a rapid pressure equilibration transient that generates significant loads on other components in the system. Prediction of and design for this transient are important aspects of assuring the safety of the HTGR-GT. This paper describes the adaptation and use of the RATSAM program to analyze the rapid fluid transient throughout the primary coolant system during a spectrum of turbine deblading events. Included are discussions of (1) specific modifications and improvements to the basic RATSAM program, which is also briefly described; (2) typical results showing the expansion wave moving upstream from the debladed turbine through the primary coolant system; and (3) the effect on the transient results of different plenum volumes, flow resistances, times to deblade, and geometries that can choke the flow.

Transient Analysis of Gas Turbine Power Plants, Using the Huntorf Compressed Air Storage Plant as an Example

1985 ◽  
Author(s):  
T. Schobeiri ◽  
H. Haselbacher
Keyword(s):  
Gas Turbine ◽  
Gas Turbines ◽  
Transient Analysis ◽  
Power Plants ◽  
Transient Behavior ◽  
Compressed Air ◽  
Closed Cycle ◽  
Combustion Chambers ◽  
Turbine Plant ◽  
Gas Turbine Plant

The design of modern gas turbines requires the predetermination of their dynamic behavior during transients of various kinds. This is especially true for air storage and closed cycle gas turbine plants. The present paper is an introduction to a computatational method which permits an accurate simulation of any gas turbine system. Starting with the conservation equations of aero/thermodynamics, the modular computer program COTRAN was developed, which calculates the transient behavior of individual components as well as of entire gas turbine systems. For example, it contains modules for compressors, turbines, combustion chambers, pipes etc. To demonstrate the effectiveness of COTRAN the shut-down tests of the air storage gas turbine plant Huntorf were simulated and results compared with experimental data. The agreement was found to be very good.

Experimental Determination of the Heat Recovery Boiler Effectiveness of a Gas Turbine Plant

2014 ◽  
Vol 659 ◽  
pp. 503-508
Author(s):  
Sorin Gabriel Vernica ◽  
Aneta Hazi ◽  
Gheorghe Hazi
Keyword(s):  
Experimental Data ◽  
Gas Turbine ◽  
Heat Recovery ◽  
Heat Recovery Boiler ◽  
Experimental Point ◽  
Experimental Data Processing ◽  
Turbine Plant ◽  
Transfer Unit ◽  
Gas Turbine Plant ◽  
Recovery Boiler

Increasing the energy efficiency of a gas turbine plant can be achieved by exhaust gas heat recovery in a recovery boiler. Establishing some correlations between the parameters of the boiler and of the turbine is done usually based on mathematical models. In this paper it is determined from experimental point of view, the effectiveness of a heat recovery boiler, which operates together with a gas turbine power plant. Starting from the scheme for framing the measurement devices, we have developed a measurement procedure of the experimental data. For experimental data processing is applied the effectiveness - number of transfer unit method. Based on these experimental data we establish correlations between the recovery boiler effectiveness and the gas turbine plant characteristics. The method can be adapted depending on the type of flow in the recovery boiler.

scholarly journals Simulation of a Steam Injected Gas Turbine Plant Control System

1997 ◽  
Author(s):  
Shusheng Zang ◽  
Jaqiang Pan
Keyword(s):  
Gas Turbine ◽  
Flow Rate ◽  
Controller Design ◽  
Dynamic Performance ◽  
Linear Quadratic Regulator ◽  
Linear Quadratic ◽  
Turbine Plant ◽  
Fuel Flow ◽  
Lqr Controller ◽  
Gas Turbine Plant

The design of a modern Linear Quadratic Regulator (LQR) is described for a test steam injected gas turbine (STIG) unit. The LQR controller is obtained by using the fuel flow rate and the injected steam flow rate as the output parameters. To meet the goal of the shaft speed control, a classical Proportional Differential (PD) controller is compared to the LQR controller design. The control performance of the dynamic response of the STIG plant in the case of rejection of load is evaluated. The results of the computer simulation show a remarkable improvement on the dynamic performance of the STIG unit.

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