Efficiency Analysis of Gas Turbine Plant Cycles with Water Injection by the Aerothermopressor

Konovalov, Dmytro; Kobalava, Halina

doi:10.1007/978-3-030-22365-6_58

Cited by 17 publications

(8 citation statements)

References 8 publications

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“…This will provide an accurate determination of the aerothermopressor effective use as a part of the gas turbine for cooling cyclic air under various operating conditions, as well of the aerothermopressor in the gas turbine cyclic air cooling system is proposed in accordance with the scheme (Fig. 1) [11]. This arrangement between the compressors will reduce the operation of the gas turbine high-pressure compressor due to al temperature of the compression process.…”

Section: Methodsmentioning

confidence: 99%

“…The aerothermopressor allows to compensate the pressure loss and reduce the work of compression in the compressor and to increase the working fluid flow and, accordingly, the gas turbine power output [11]. In addition, the aerothermopressor is compact and structurally and technologically simple to manufacture in comparison with surface air coolers [12,14,15].…”

Section: Literature Reviewmentioning

confidence: 99%

“…For this purpose the jet technologies can be used [7][8][9][10]. To provide efficient evaporative cooling of gas turbine cyclic air without total pressure loss the aerothermopressor are quite useful [11]. Due to evaporative cooling in the aerothermopressor, an effect of thermogasdynamic compression is taken place -gas pressure is increased in the process of instantaneous evaporation of water injected into the gas (air) flow accelerated to a speed close to sound [12,13].…”

Section: Introductionmentioning

confidence: 99%

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Determination of hydraulic resistance of the aerothermopressor for gas turbine cyclic air cooling

et al. 2020

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One of the promising trends to increase the fuel and energy efficiency of gas turbines is contact cooling of cyclic air by using a twophase jet apparatus – an aerothermopressor. The rational parameters of work processes of the aerothermopressor were studied. The experimental setup was designed to simulate the aerothermopressor operation in the cooling air cycle of the gas turbine and to determine pressure losses in the aerothermopressor flow part. Based on the obtained experimental data, an empirical equation was proposed to determine the hydraulic resistance coefficient of the aerothermopressor flow part, depending on the initial pressure and the amount of water injected. The deviation of the calculated hydraulic resistance coefficient from the experimental ones is ± 25 %. The obtained results can be used in the practice of designing the aerothermopressor for gas turbine cyclic air cooling.

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Section: Methodsmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Determination of hydraulic resistance of the aerothermopressor for gas turbine cyclic air cooling

et al. 2020

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“…A lot of publications are devoted to improving the performance of AC systems by enhancing heat transfer processes in evaporators and condensers [1][2][3][4][5][6], applying the energy efficient scheme decisions of refrigeration machines [7][8][9][10] and waste heat recovery refrigeration techniques [11][12][13][14], methods of modeling and controlling, experimental, monitoring and statistical methods [15][16][17].…”

Section: Literature Reviewmentioning

confidence: 99%

An Innovative Air Conditioning System for Changeable Heat Loads

Trushliakov

Radchenko

Bohdal

et al. 2020

Lecture Notes in Mechanical Engineering

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The efficiency of air conditioning (AC) systems depends on the operation of their air coolers at varying heat loads in response to current changeable climatic conditions. In general case, an overall heat load of any AC system comprises the unstable range, corresponding to ambient air processing with heat load fluctuations, and a comparatively stable part for subsequent air subcooling. Following from this approach, a rational design overall heat load is chosen to provide a maximum annular refrigeration capacity generation and divided into a comparatively stable basic part and a remaining part for ambient air precooling at changeable heat loads. The ambient air precooling mode with considerable heat load fluctuation needs load modulation, whereas the comparatively stable heat load range can be covered by operation at about nominal mode. According to modern trend in AC systems the load modulation is performed by varying refrigerant feed to air coolers in Variable Refrigerant Flow (VRF) system. But with this the problem of inefficient operation of air coolers caused by dry-out of inner walls at the final stage of inside tube refrigerant evaporation followed by dropping the intensity of heat transfer remains unsolved. As alternative approach of the heat load modulation in AC systems there is a concept of incomplete refrigerant evaporation with overfilling air coils that leads to excluding a dry-out of inner surface of air coils and is realized through liquid refrigerant recirculation by injector (jet pump).

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“…The aerothermopressor is a jet device, which in size greatly wins compared with other coolers of surficial and contact type. Due to the joint action of turbulization accelerated air flow and instantaneous evaporation there is an effective atomization of injected water [25]. Using of the aerothermopressor in the turbocharging system of the internal combustion engine is a promising direction.…”

Section: Introductionmentioning

confidence: 99%

Research of the Aerothermopressor Cooling System of Charge Air of a Marine Internal Combustion Engine Under Variable Climatic Conditions of Operation

Konovalov

Trushliakov²,

Radchenko³

et al. 2020

Lecture Notes in Mechanical Engineering

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Principle of charge air cooling of the internal combustion engine with an aerothermopressor is proposed. It is implemented on the transport ship regular line. Arising thermogasdynamic compression allows increasing the air pressure. The aerothermopressor application in the charge air cooling systems makes it possible to reduce the power consumed by compressors, Nc by 3-10%, thereby the engine power is increased by 1-3% and the specific fuel consumption is decreased by 2-4%. It is established that in case of increasing the ambient air temperature tamb at the turbocharger input the effect from the aerothermopressor used for cooling of the charge air is increased: the turbocharger power reduction DN C is increased with a corresponding increase in engine power and a decrease in specific fuel consumption. The relative (related to air flow) water mass flow is determined, which has to be injected at completely evaporated in a thermal overpressure: 0.02-0.05 (2-5%).

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Efficiency Analysis of Gas Turbine Plant Cycles with Water Injection by the Aerothermopressor

Cited by 17 publications

References 8 publications

Determination of hydraulic resistance of the aerothermopressor for gas turbine cyclic air cooling

Determination of hydraulic resistance of the aerothermopressor for gas turbine cyclic air cooling

An Innovative Air Conditioning System for Changeable Heat Loads

Research of the Aerothermopressor Cooling System of Charge Air of a Marine Internal Combustion Engine Under Variable Climatic Conditions of Operation

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