Waste heat recovery in an intercooled gas turbine system: Exergo-economic analysis, triple objective optimization, and optimum state selection

Musharavati, Farayi; Khanmohammadi, Shoaib; Pakseresht, Amirhossein; Khanmohammadi, Saber

doi:10.1016/j.jclepro.2020.123428

Cited by 47 publications

(8 citation statements)

References 29 publications

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“…These waste heat sources were categorised according to the heat recovery potential and the temperature of the available waste heat, with most of the recoverable heat falling between 100 -200 °C [120]. Other potential forms of waste heat include CHP [121,122], and data centres [123]. The heat source temperature determines the value of the waste heat, with higher temperature sources allowing more scope for matching with potential heat sinks [124].…”

Section: Waste Heat For Stesmentioning

confidence: 99%

A review of thermal energy storage technologies for seasonal loops

Mahon

O’Connor

Friedrich

et al. 2022

Energy

181

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Section: Waste Heat For Stesmentioning

confidence: 99%

A review of thermal energy storage technologies for seasonal loops

Mahon

O’Connor

Friedrich

et al. 2022

Energy

181

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“…As per the conservation of law, energy is conserved and can change its form (Musharavati et al , 2021), waste heat recovery in an IcGT system: exergo-economic analysis, triple objective optimization and optimum state selection, as mentioned in equation (8), …”

Section: Mathematical Modelingmentioning

confidence: 99%

“…With the use of mass and energy balance, compressor work and can be estimated and from exergy balance, exergy destroyed and exergy efficiency can be estimated Musharavati et al (2021), Waste heat recovery in an IcGT system: Exergo-economic analysis, triple objective optimization and optimum state selection, shown in equations (31)–(38), …”

Section: Mathematical Modelingmentioning

confidence: 99%

Energy and exergy analysis of hybridization of solar, intercooled reheated gas turbine trigeneration cycle

Kumar

Aravind

Banchhor

et al. 2022

WJE

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Purpose This paper aims to analyze energy and exergy analysis of solar-based intercooled and reheated gas turbine (GT) trigeneration cycle using parabolic trough solar collectors (PTC) with the use of MATLAB 2018. Design/methodology/approach In the first section of this paper, the solar-based GT is validated with the reference paper. According to the reference paper, the solar field is comprising 30 modules in series and 35 modules in parallel series, where a total of 1,050 modules of PTC are taken into consideration. In the second part of this paper, the hybridization of the solar, GT trigeneration cycle is analyzed and optimized. In the last section of this paper, the hybridization of solar, intercooled and reheated GT trigeneration systems is examined and compared. Findings The results examined the first section, the power produced by the cycle will be 37.34 MW at 0.5270 kg/s mass flow rate of the natural gas consumption and the efficiencies of energy and exergy will be 38.34% and 39.76%, respectively. The results examined in the second section, the power produced by the cycle will be 38.4 MW at 0.5270 kg/s mass flow rate of the natural gas consumption and accordingly the efficiency of energy and exergy is found to be 40.011% and 41.763%. Where in the last section, the power produced by the cycle will be 41.43 MW at 0.5270 kg/s mass flow rate of the natural gas consumption and the energy and exergy efficiencies will be 39.76% and 40.924%, respectively. Originality/value The author confirms that this study is original and has neither been published elsewhere nor it is currently under consideration for publication elsewhere.

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“…One of the ways to improve the operational characteristics of a gas turbine, increase power, and reduce fuel consumption is the transition to a complex cycle. There are the following ways to improve the efficiency of GTP cycles:1) Gas interheating during expansion; 1,2 2) Air intercooling during pressure increase; 5,6 3) Heat regeneration of the GTP exhaust gases; 7 4) Utilization of the exhaust gases heat in the steam-turbine heat recovery circuit; 1,8 5) Utilization of the exhaust gases heat with the organization of GTP’s work on the contact gas–steam turbine cycle. 1,9 …”

Section: Literature Reviewmentioning

confidence: 99%

“…1,2 One of the ways to improve the operational characteristics of a gas turbine, increase power, and reduce fuel consumption is the transition to a complex cycle. There are the following ways to improve the efficiency of GTP cycles: 1) Gas interheating during expansion; 1,2 2) Air intercooling during pressure increase; 5,6 3) Heat regeneration of the GTP exhaust gases; 7 4) Utilization of the exhaust gases heat in the steamturbine heat recovery circuit; 1,8 5) Utilization of the exhaust gases heat with the organization of GTP's work on the contact gas-steam turbine cycle. 1,9 Among the above methods of increasing the gas turbine plant efficiency, one of the most promising is to use air intercooling during the compression process in the compressor, that is, the increase in the efficiency of the compressor by approaching of the air compression process to isothermal (approaching the final compression temperature to the initial one).…”

Section: Literature Reviewmentioning

confidence: 99%

Research of characteristics of the flow part of an aerothermopressor for gas turbine intercooling air

Konovalov

Radchenko

Kobalava

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part A:

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Complex gas turbine schemes with air intercooling are usually used to bring the compression process of working fluid in compressor closer to isothermal one. A promising way to realize it is to use an aerothermopressor. The aerothermopressor is a two-phase jet apparatus, in which the highly dispersed liquid (water) is injected into the superheated gas (air) stream accelerated to the speed closed to the sound speed value (Mach number from 0.8 to 0.9). The air pressure at the aerothermopressor outlet (after diffuser) is higher than at the inlet due to instantaneous evaporation of highly dispersed liquid practically without friction losses in mixing chamber and with an increase in pressure of the mixed homogenous flow. The liquid evaporation is conducted by removing the heat from the air flow. In the course of the experimental research, the operation of the aerothermopressor for gas turbine intercooling air was simulated and its characteristics (hydraulic resistance coefficients, pressure increase, and air temperature) were determined. Within contact cooling of air in the aerothermopressor, the values of the total pressure increase in the aerothermopressor were from 1.02 to 1.04 (2–4%). Thus, the aerothermopressor use to provide contact evaporative cooling of cyclic air between the compressor stages will ensure not only compensation for pressure losses but also provides an increase in total air pressure with simultaneous cooling. Injection of liquid in a larger amount than is necessary for evaporation ensures a decrease in pressure losses in the flow path of the aerothermopressor by 15–20%. When the amount of water flow is more than 10–15%, the pressure loss becomes equal to the loss for the “dry” aerothermopressor, and with a further increase in the amount of injected liquid, they are exceeded. The values of errors in the relative increase of air pressure in the aerothermopressor measurements not exceeded 4%. The results obtained can be used in the practice of designing intercooling systems for gas turbines.

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Waste heat recovery in an intercooled gas turbine system: Exergo-economic analysis, triple objective optimization, and optimum state selection

Cited by 47 publications

References 29 publications

A review of thermal energy storage technologies for seasonal loops

A review of thermal energy storage technologies for seasonal loops

Energy and exergy analysis of hybridization of solar, intercooled reheated gas turbine trigeneration cycle

Research of characteristics of the flow part of an aerothermopressor for gas turbine intercooling air

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