Electrical Design and Operating Experience with the Pinnacles Waste Heat Gas Turbine Plant

1970 ◽  
Vol PAS-89 (6) ◽  
pp. 1271-1276
Author(s):  
Clifford Stine
Keyword(s):  
Gas Turbine ◽  
Waste Heat ◽  
Operating Experience ◽  
Turbine Plant ◽  
Gas Turbine Plant

Strategy for a Cost Optimized Operation of a Flexible Cogeneration Gas Turbine Plant

2000 ◽  
Author(s):  
D. Hein ◽  
K. Kwanka ◽  
M. Nixdorf
Keyword(s):  
Gas Turbine ◽  
Control Strategy ◽  
Operating Experience ◽  
Economic Potential ◽  
Cogeneration Plant ◽  
Turbine Plant ◽  
Mode Of Operation ◽  
Gas Turbine Plant ◽  
Technical Framework

A new gas turbine cogeneration plant based on the Cheng cycle was installed to supply electricity and heat for the Technische Universität München’s campus site at Garching. To utilize fully the Cheng cycle flexibility, an optimizing system was developed which controls the mode of operation continuously and adapts the point of operation without manual interface. Only with such a system it is possible to exploit the full economic potential of the system. The paper presents the technical framework and some aspects of the control strategy used to minimize the costs based on three years of operating experience.

scholarly journals The Effects of Steam Injection in Combustion Air on the Thermal Efficiency and the Specific Work Output of a Stationary Gas Turbine Plant

1989 ◽  
Author(s):  
K. S. Varma ◽  
Asgharali I. Khandwawala ◽  
S. A. Asif
Keyword(s):  
Gas Turbine ◽  
Waste Heat ◽  
Steam Injection ◽  
Specific Work ◽  
Work Output ◽  
Waste Heat Boiler ◽  
Turbine Plant ◽  
Gas Turbine Plant ◽  
Cycle Efficiency ◽  
The Impact

In the present study a stationary open cycle gas turbine plant, including a thermal regenerator has been theoretically analyzed to assess the impact of steam addition in combustion air, on its performance. the effect of varying steam upto 15% air at different pressure ratios and turbine inlet temperatures have been reported. Mixing of steam in air results in higher values of cycle efficiency and increased specific work output, feasibility to generate steam needed for the purpose in a waste heat boiler have also been studied.

Available Systems for the Conversion of Waste Heat to Electricity

2014 ◽  
Author(s):  
N. Tauveron ◽  
S. Colasson ◽  
J.-A. Gruss
Keyword(s):  
Gas Turbine ◽  
Waste Heat ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Combined Cycle ◽  
Maximum Temperature ◽  
Thermodynamic Efficiency ◽  
Turbine Plant ◽  
Wide Range ◽  
Gas Turbine Plant

The conversion of heat into electricity, generally speaking heat-to-power generation, is a wide area of technologies and applications. This paper focuses on available systems, excepted the internal combustion cycles, applied to transform (waste) heat to power. Data of referenced market proved or time-to-market technologies are presented. A database of more than 1100 references has been built. The following categories can be found: Rankine Cycle plant, Organic Rankine Cycle plant, Steam engine, Kalina Cycle plant, Brayton cycle plant, micro gas turbine, closed cycle gas turbine plant, combined cycle gas turbine plant, Stirling engine, Ericsson engine and thermoelectric generator. We intentionally target a range of power from Watts to hundreds of MW, covering the range of temperature [80–1000°C] usually addressed by these systems. The comparison of performances is hereby discussed and compared to thermodynamic principles and theoretical results in the graph Maximum temperature [°C] versus Thermodynamic efficiency. Comparison with Carnot and Chambadal-Novikov-Curzon-Ahlborn efficiencies are performed. A more original contribution is the presentation of the graph Power [W] versus Thermodynamic efficiency. The analysis reveals a monotonous trend inside each technology. Furthermore this general behavior covers a very wide range of power, including technological transitions. Finally, the position of each technology in the map Maximum temperature [°C] versus Power [W] is also analyzed. Explanations based on thermodynamics and techno-economic approaches are proposed.

scholarly journals Thermodynamic Study of Coupled Steam-Gas Turbine Plant With Steam Extraction and Injection

1995 ◽  
Author(s):  
Zheng Qun ◽  
Li Shunglong ◽  
Yang Yaogen
Keyword(s):  
Steam Turbine ◽  
Gas Turbine ◽  
Waste Heat ◽  
Heat Recovery Boiler ◽  
Feed Water ◽  
Exhaust Gas ◽  
Water Heater ◽  
Turbine Plant ◽  
Steam Turbine Plant ◽  
Gas Turbine Plant

A type of coupled steam–gas turbine plant is proposed here. It is composed of a regenerative extraction steam turbine and a steam injected gas turbine. Extracted steam of the regenerative extraction steam cycle is not used to heat water through the regenerative feed–water heater as in conventional plant, but injected into a gas turbine to augment the output of the gas turbine, while the exhaust gas of the gas turbine now displaces the extracted steam to heat the feed water of the steam turbine plant. The proposed repowering turbine plant has two merits: the further utilization of extraction steam and the elimination of the complicated waste heat recovery boiler of a conventional steam injected gas turbine plant, in favor of a gas–to–water heat exchanger.

scholarly journals ПРОМІЖНЕ ОХОЛОДЖЕННЯ ЦИКЛОВОГО ПОВІТРЯ В ГАЗОТУРБІННИХ УСТАНОВКАХ АЕРОТЕРМОПРЕСОРАМИ

2018 ◽  
pp. 29-36 ◽  
Author(s):  
Дмитро Вікторович Коновалов ◽  
Галина Олександрівна Кобалава
Keyword(s):  
Gas Turbine ◽  
Waste Heat ◽  
Climatic Conditions ◽  
Energy Resources ◽  
Working Fluid ◽  
Turbine Plant ◽  
Secondary Energy ◽  
Gas Turbine Plant ◽  
Cooling Technology ◽  
Secondary Energy Resources

Existing technologies to improve the fuel and energy efficiency of gas turbine plants due to intercooling of the cycle air are analyzed. One of the promising ways for increasing the efficiency of such technologies is using thermogasdynamic compression in the heat recovery processes of secondary energy resources. A feature of this process is the pressure rate increase due to the instant evaporation of a finely dispersed liquid is injected into the air stream which accelerated to the speed of sound. When the pressure of the boiling liquid is increased, the power consumption for compressing the working fluid (cyclic air) is reduced, the efficiency is increased and the consumption of the fuel and energy resources of the gas turbine plant is reduced.The advantages of cooling technology with an aerothermopressor are outlined in the article. The aerothermopressor is a multifunctional jet apparatus, whose work consists in injecting water into the stream of cyclic air when it is compressed in the gas turbine plant compressor. If this apparatus is used for cooling of cycle air, it will be compensate for aerodynamic losses along the air path and it will reduce compression work in the compressor, increase the consumption of the working fluid and, as a result, increase the gas turbine plant power. The basic schemes of the aerothermopressor installation between the stages of low and high pressure compressors are considered. Theoretical thermodynamic cycles of such gas turbine plants are presented and the advantage of using a contact cooler for intercooling of the cyclic air in comparison with surface air coolers for intercooling is defined in this paper.The proposed cooling technology makes it possible using low-potential heat of secondary energy resources of gas turbine plants (heat of cyclic air), the utilization of which by traditional methods is problematic because the temperature of waste heat sources is low.The tasks are determined, the solution of which will ensure the possibility of rational organization of cooling processes in the aerothermopressor, which in turn will allow achieving optimal parameters for increasing the efficiency of the gas turbine plant and reducing the specific fuel consumption in relation to the variable climatic conditions of operation

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.

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