Effect of mist cooling technique on exergy and energy analysis of steam injected gas turbine cycle

Elwekeel, Fifi N. M.; Abdala, Antar M. M.

doi:10.1016/j.applthermaleng.2015.12.040

Cited by 24 publications

(12 citation statements)

References 31 publications

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“…Other studies on the simultaneous injection into the combustor and compressor include articles by David Dagget [50]and Balepin [52], both of which are cited in Section 2.2.2. Also, Elwekeel researched the injection in the combustion chamber and turbine, which will be referred to in Section 2.4 [76].…”

Section: Location Of Humidity Addition and Injection In Study Apparatmentioning

confidence: 99%

“…In their performance study, Elwekeel and Abdala studied the effect of the mist cooling technique on exergy and energy analysis in a steam-injected gas turbine cycle [76]. In their considered system, the steam generated by the exhaust gas recirculation was injected into the combustion chamber and simultaneously used for cooling the turbine blades through a closed loop.…”

Section: Approaches: Performance Studymentioning

confidence: 99%

“…Temperature uniformity index [65] Correction factor distance [10] Combustion efficiency [65] Plant efficiency [76] Water evaporation efficiency [65] Temperature correction factor(T T isa -1 ) [10] Loading parameter [108] Modified loading parameter [108] Correction factor distance [10] equivalence ratio [97] Steam fraction (%) [108]…”

Section: Greek Lettersmentioning

confidence: 99%

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Effects of steam addition and/or injection on the combustion characteristics: A review

2021

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Due to increasing global energy demand and the fact that a major source of the required energy is generated from fossil fuels, the combustion process has turned into a topic of interest in converting fossil fuels to energy. An ideal combustion system is one that can combine high engine efficiency with low fuel consumption and low emissions. Increasing humidity is a technique used by researchers for influencing the combustion process. The present study aims to review previously conducted researches in this regard. Based on viewpoints of these researches, the reviewed studies were categorized into four groups: (1) the case studies used; (2) the methodology applied; (3) the design guidelines considered; and (4) the performance parameters studied. It can be concluded from the reviewed articles that nitrogen oxide (NOx) reduction is the most significant advantage of increasing humidity in the combustion process, and has led to the widespread use of this method. The other studied emissions either remained constant or their respective increases were negligible.

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Section: Location Of Humidity Addition and Injection In Study Apparatmentioning

confidence: 99%

Section: Approaches: Performance Studymentioning

confidence: 99%

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Effects of steam addition and/or injection on the combustion characteristics: A review

2021

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“…Furthermore, an experimental and numerical study conducted by Benini et al [8] showed that steam injection led to a reduction in the NO formation in a proprietary turbojet chamber. Applying steam/water-injection schemes in future aircraft and power plants could effectively reduce pollution and operating costs as well as improve performance [6][7][8][9][10][11][12][13]. Zhang et al integrated the partial oxidation gas turbine (POGT) with a steam injected gas turbine cycle (STIG) and investigated the overall performance of this cycle and the influences of key variables [9].…”

Section: Introductionmentioning

confidence: 99%

“…Compared to other simple cycles, the efficiency of this cycle was two percentage points higher, the oxygen concentration decreased, and the cooling flow rate increased. The investigation of steam injected gas turbine cycle with steam conducted by Elwekeel and Abdala [13] showed the total exergy destruction rate decreased with saturated steam coolant temperature and the network and plant efficiency increased at a higher saturated steam coolant temperature.…”

Section: Introductionmentioning

confidence: 99%

Effect of steam addition on gas turbine combustor design and performance

Xue

Sethi

et al. 2016

Applied Thermal Engineering

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Adding steam influences the combustion process inside the combustor, which should be taken into account during combustor design. The design of combustor has long been the most challenging process. This study integrated the gas turbine performance with the combustor design, and formulated a detailed procedure for single annular combustors with steam addition consideration in particular. To accomplish this, a computer code has been developed based on the design procedures. The design model could provide the combustor geometry and the combustor performance. The inlet parameters for combustor design are obtained and validated through the calculation of gas turbine engine performance provided by our own home code. The model predictions are compared with operational and configuration data from two real engines and show reasonably good accuracy. The influence of steam addition on combustor design is investigated and results showed the variation of geometrical size is highest for components where intense combustion takes place while the design is almost kept the same for components where only pure flow exists. After conforming the feasibility of the combustor design code, we investigated the effects of steam addition on combustor performance. It revealed that steam injection is an effective way to reduce the temperature in the burner while other performance like the total pressure loss would be slightly deteriorated.

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Introducing an optimum gas turbine inlet temperature (TIT) based on a 4E analysis: a case study of northeastern Iran

Kazemiani‐Najafabadi

Rad

2020

J Therm Anal Calorim

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Effect of mist cooling technique on exergy and energy analysis of steam injected gas turbine cycle

Cited by 24 publications

References 31 publications

Effects of steam addition and/or injection on the combustion characteristics: A review

Effects of steam addition and/or injection on the combustion characteristics: A review

Effect of steam addition on gas turbine combustor design and performance

Introducing an optimum gas turbine inlet temperature (TIT) based on a 4E analysis: a case study of northeastern Iran

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