scholarly journals The Design and Application of the Gas Turbine Heat Recovery Boiler

1967 ◽  
Author(s):  
J. C. Stewart ◽  
H. J. Stretch
Keyword(s):  
Gas Turbine ◽  
Heat Balance ◽  
Heat Recovery ◽  
Heat Recovery Boiler ◽  
Optimum Heat ◽  
Recovery Boiler ◽  
Gas Turbine Exhaust ◽  
And Performance ◽  
Boiler Design ◽  
Operating Points

This paper presents details of a heat-recovery boiler design as applied to gas turbine exhaust for the generation of steam. The factors involved in such applications are reviewed, together with an explanation of the heat-balance calculations and the limits that apply. A description is given of the parameters used in the design of the heat-transfer surface in the boiler. A specific design is described including details of the components in the boiler train. Reference is made to factors to be considered in erection and installation of this equipment. An explanation is included of the computer programs used to determine the optimum heat balance and for boiler selection and performance at “off-design” operating points. The operating performance of an actual installation is included.

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 Computer Techniques for Evaluating Gas Turbine Heat Recovery Applications

1972 ◽  
Author(s):  
J. C. Stewart
Keyword(s):  
Gas Turbine ◽  
Heat Recovery ◽  
Full Range ◽  
Operating Conditions ◽  
Heat Recovery Boiler ◽  
Feed Water ◽  
Steam Temperature ◽  
Pinch Point ◽  
Superheated Steam Temperature ◽  
Boiler Design

The design of gas turbine heat recovery boiler systems is based on several engineering and economic parameters that require lengthy iterative calculations. Computer programs have been developed which reduce the time factor and provide the optimum design for a given set of exhaust conditions and steam requirements. This paper describes programs which provide an installed cost estimate that can be used to evaluate the affect of variations in boiler pinch point, back pressure, stack temperature, superheated steam temperature, feed water approach temperature, and supplementary firing for any gas turbine heat recovery application. Another program provides operating performance of the selected boiler design through a range of exhaust conditions due to ambient or load changes, and also for changes in the steam capacity or pressure requirements. Data from this program is used to plot performance “maps” for the full range of “off-design” operating conditions.

The Te Awamutu Cogeneration Project From Stranded Asset to Base Load

1997 ◽  
Author(s):  
Eamonn Morrissey
Keyword(s):  
Gas Turbine ◽  
Heat Recovery ◽  
Operating Regime ◽  
Heat Recovery Boiler ◽  
Plant Design ◽  
Turbine Generator ◽  
Design Work ◽  
Gas Generators ◽  
Recovery Boiler ◽  
Base Load

This paper reviews the development of the Electricity Corporation of New Zealand’s first gas turbine based cogeneration project, discusses the design work performed, the project implementation and provides lessons learnt for future projects. The Project employs a TP&M FT4 TwinPac Gas Turbine Generator Set which has been relocated to Anchor Product’s dairy factory at Te Awamutu where it provides hot exhaust gas for a Heat Recovery Boiler which generates steam for use in the dairy factory processes and a steam turbine. The gas generators were converted from liquid fuel to natural gas and the free turbines were overhauled. All auxiliaries were relocated and upgraded as required by the new operating regime or changes in legislation, and a new microprocessor based Control and Instrumentation system purchased. Plant design is such that the Heat Recovery Boiler can accept hot gas from only one gas turbine at a time while the second is available for peaking duty as required.

scholarly journals Gas Turbine Heat Recovery Boiler Thermodynamics, Economics and Evaluation

1969 ◽  
Author(s):  
R. W. Foster-Pegg
Keyword(s):  
Gas Turbine ◽  
Gas Turbines ◽  
Heat Recovery ◽  
Heat Recovery Boiler ◽  
Recovery Boiler

A 10,000 kw gas turbine operating open exhaust burning gas worth 30 cents per mcf will reject heat worth $25 per hour. If the gas turbine is operated more than a few hours per year, this heat will be recovered, usually in a heat recovey boiler. It is fair to say that without heat recovery systems, base loaded gas turbines would not be practical in normal industry.

Cogeneration - Interactions of Gas Turbine, Boiler and Steam Turbine

1984 ◽  
Author(s):  
R. W. Foster-Pegg
Keyword(s):  
Steam Turbine ◽  
Gas Turbine ◽  
Heat Recovery ◽  
Cost Effective ◽  
Steam Pressure ◽  
Heat Recovery Boiler ◽  
Steam Output ◽  
Effective System ◽  
Cogeneration System ◽  
Recovery Boiler

A gas turbine cogeneration plant produces power and process steam. Under the PURPA law, surplus electric power can be sold to the local utility. Since process steam generally cannot be exported, it is better to have an excess of power than an excess of steam. Because of low rates offered for surplus power, or for other possible reasons, an owner may not wish to sell power, so it may be necessary to operate at a power-to-steam ratio that does not match the outputs of a gas turbine with a simple heat recovery boiler. If more steam is needed, supplementary firing may be included in the heat recovery boiler. If the need is for more power, a back pressure steam turbine can be included. This reduces the steam output by requiring higher steam pressure. Further power increase and steam reduction can be obtained with a condensing steam turbine. If neither the full steam output nor additional power is required, capital cost can be reduced by inclusion of a smaller, less-efficient heat recovery boiler. This paper compares these means of adjusting the power and steam outputs of a gas turbine cogeneration system to obtain the most cost effective system.

scholarly journals A Computer Program to Analyze Cogeneration Plant Heat Balances and Equipment Design

1987 ◽  
Author(s):  
J. C. Stewart ◽  
C. F. Hsun
Keyword(s):  
Computer Program ◽  
Steam Turbine ◽  
Gas Turbine ◽  
Heat Balance ◽  
Heat Recovery ◽  
Heat Recovery Boiler ◽  
Process Conditions ◽  
Cogeneration Plant ◽  
Ambient Conditions ◽  
Turbine Performance

This paper describes a computer program designed to calculate and analyze cogeneration plant heat balances and equipment and to plot heat balance diagrams. For normal design point conditions, the program calculates gas turbine performance, designs a heat recovery boiler to suit the process requirements, calculates a steam turbine performance and deaerator balance to complete the cycle. In addition, the program will calculate off-design performance for a supplementary firing option or for changes in ambient conditions, gas turbine part load or process conditions.

Grid Connected Electrical-Thermal (Cogeneration) Energy System for University of California, Davis, California

1978 ◽  
Author(s):  
C. Martineau ◽  
J. L. Boyen
Keyword(s):  
Gas Turbine ◽  
Heat Recovery ◽  
Electrical Power ◽  
Energy System ◽  
Heat Recovery Boiler ◽  
Utility System ◽  
Fuel Rate ◽  
Gas Turbine Exhaust ◽  
Continuous Blowdown ◽  
Cooling Air

The energy system described represents the latest technology in on-site grid-connected systems for the power range used. The electrical portion of the system consists of a liquid fuel fired gas turbine driving a 3-MW alternator which is connected into the utility system. The gas turbine is supercharged to 12 in. w.c. It is planned to operate the turbine-generator at full load continuously, thereby securing operation at the optimum fuel rate. Heat is recovered from the gas turbine exhaust by a novel heat recovery boiler utilizing a controlled economizer. Steam is generated at 150 psig and is fed into the campus steam system for heating, air conditioning, and other uses. Steam rate is 20,300 lb/hr to a final stack temperature of 308 F. Additional heat is recovered from the turbine oil cooler, the alternator cooling air, and the boiler’s continuous blowdown. The combination of electrical power generation and heat recovery from the above sources produces an overall plant efficiency of 83 percent.

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