Study of the effect of fuel temperature on gas turbine performance

Marin, George; Mendeleev, D. I.; Osipov, Boris; Akhmetshin, Azat

doi:10.1051/e3sconf/202017801033

Cited by 26 publications

(11 citation statements)

References 9 publications

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“…The air cooler ( 7) is designed to cool the process gas to a temperature not exceeding 40 °С at the outlet of the compressor station. The turboexpander ( 8) is designed to reduce the pressure of the fuel gas to the pressure of the fuel mixture in the combustion chamber (2) by operating as a drive for an electric generator (9). The heat exchanger ( 10) is designed for additional cooling of the process gas due to the cold fuel gas flow.…”

Section: Research Resultsmentioning

confidence: 99%

“…The design of the turbo expander is similar to that of a gas turbine. The results of studies of the characteristics of gas turbines [8,9] note a positive effect on the operation of turbines from heating fuel gas.…”

Section: Research Of Existing Solutions To the Problemmentioning

confidence: 99%

“…The paper [9] analyzes the decrease in fuel gas con sumption due to its preheating. It is noted that gas savings from preheating in monetary terms are offset by the cost of creating heat exchangers.…”

Section: Research Of Existing Solutions To the Problemmentioning

confidence: 99%

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Development of the system of energy and resource saving during the operation of the gas pumping unit

Kologrivov

Buzovskyi

2021

TAPR

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The object of research is the fuel gas system of a gas turbine engine. The study of the use of secondary energy resources of the gas-pumping unit at the compressor station of the main pipeline has been carried out. The work of a gas turbine engine, including the work of the fuel gas system, is considered. The main drawback of the fuel gas system is revealed – ineffective use of excess gas pressure. An informational analysis of the options that eliminate the identified drawback is carried out. It is shown that in order to eliminate the disadvantage, it is advisable to use a turbo-expander at the compressor station to utilize the excess pressure of the fuel gas. It is also shown that the operation of a fuel gas turboexpander to drive an additional air compressor as part of a gas turbine engine is impractical. An expander-generator set with the generation of additional electricity at the compressor station is recommended for use. Modeling the operation of the utilization system made it possible to recommend constructive proposals for its improvement. A schematic diagram of a system for the complex utilization of excess pressure of fuel gas and heat of combustion products from the operation of a gas turbine engine is proposed. The system of complex utilization includes parts-generator unit, heat exchanger for cooling process gas and heat exchanger for firing gas. Regenerative heating of fuel gas up to 250 °С reduces energy consumption for heating it up to the ignition temperature. A model of a robot installation of the type GPU 16/56-1.44 (Ukraine) is carried out. It is determined that when a component engine of the J-59 (Ukraine) type with a shaft power of 16 MW operates, it is possible to additionally receive 102 kW of electricity and save 64 m3/h of fuel gas. It is revealed that the subcooling of the process gas does not play a significant role in reducing energy consumption during its transportation. It is recommended to use the process gas to heat the cold fuel gas stream downstream of the turboexpander to positive temperatures. The integrated utilization system is not a simple connection of an expander-generator set and two heat exchangers along the flow of the fuel gas. As a result of its operation, a significant reduction in the consumption of fuel gas and electricity is achieved. The disadvantages that hinder the implementation of a comprehensive disposal system are identified. This is the use of equipment for generating electricity at a compressor station. It is uncharacteristic for the operation of the station and requires additional qualifications in service. It is also required that the characteristics of industrial expander-generator sets correspond to the fuel gas consumption of a gas turbine engine.

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Section: Research Resultsmentioning

confidence: 99%

Section: Research Of Existing Solutions To the Problemmentioning

confidence: 99%

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Development of the system of energy and resource saving during the operation of the gas pumping unit

Kologrivov

Buzovskyi

2021

TAPR

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“…If it considers that the ratio of mass flow of air and natural gas in the combustion mixture is 44.86 [11], then the mass flows of fuel 𝑚 ) and air 𝑚 ) are 12 kg/s and 538.44 kg/s respectively, Table 3. There is a dependence between the inlet air and fuel temperature and the outlet performance and efficiency of the gas turbine [12], [13]. The calculations are performed for the ambient air temperature of 𝑡 20°С.…”

Section: Gas Turbine Cyclementioning

confidence: 99%

Proposed Solution for Adaptation of the Block in TPP Bitola using Gas Turbine Combined Cycle

Dimovski¹,

Stavreva²,

Dimitrieska³

et al. 2022

TEM Journal

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The subject of this paper is to present the possibility of adapting the existing conventional steam power station of TPP Bitola (Republic of North Macedonia) in a plant using gas turbine combined cycle (GTCC). The main emphasis is placed on the energy analysis of the conceptual plant where the required energy parameters of the individual components of the combined cycle are shown. The parameters of the superheated steam delivered by the boiler in the current operating mode are considered and they should be provided by heat recovery steam generator with the heat of the exhaust gases from the gas turbine to achieve a high degree of adjusted upgrade of the thermal power plant. Simplified schemes of the envisaged combined cycle consisting of two gas turbines and one steam turbine are given. A comparative analysis of the efficiency and capacity of the existing and conceptual plant is performed.

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“…In addition, a study has also been carried out regarding the impact of fuel variations on the performance of the GE 6FA model gas turbine, where when using natural gas, the efficiency increases from 35.05 to 35.39%, when using syngas the efficiency increases from 35.44 to 35. 73% and using aviation kerosene, the efficiency increased from 35.36 to 35.41% [4].…”

Section: Introductionmentioning

confidence: 96%

The Impact of Changes in Exhaust Temperature on the Power Output and Heat Rate of a Gas Turbine with a Capacity of 238 MW

Parapa¹

2021

Intek

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The exhaust temperature parameter is one of the parameters that need to be considered in maintaining the performance of the gas turbine. The purpose of this study is to analyze the effect of changes in exhaust temperature on power output and heat rate. The data used is the actual design data of the M701 gas turbine. This data is used in building the model using the GateCycle software. The modeling simulation results are then validated using the actual design data. To see the impact of changes in exhaust temperature, data from the latest gas turbine performance results are used. This study concludes that changes in exhaust temperature parameters of 1OC have an impact on changes in power output of 0.273% and heat rate of 0.047%.

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Study of the effect of fuel temperature on gas turbine performance

Cited by 26 publications

References 9 publications

Development of the system of energy and resource saving during the operation of the gas pumping unit

Development of the system of energy and resource saving during the operation of the gas pumping unit

Proposed Solution for Adaptation of the Block in TPP Bitola using Gas Turbine Combined Cycle

The Impact of Changes in Exhaust Temperature on the Power Output and Heat Rate of a Gas Turbine with a Capacity of 238 MW

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