Performance optimisation of open cycle intercooled gas turbine power plant with pressure drop irreversibilities

Wang, W. H.; Chen, L. G.; Sun, Fengrui; Chen, Wu

doi:10.1179/174602208x269373

Cited by 22 publications

(16 citation statements)

References 6 publications

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“…These resistances control the air flow rate m and the net power output W [26][27][28][29][30][31][32][33][34][35][36][37][38][39][43][44][45][46]. For example, the pressure drop at the compressor inlet of the top cycle is given by:…”

Section: Cycle Analysismentioning

confidence: 99%

“…It was found that the regenerative Brayton cycle can attain higher thermal efficiency than that of the simple Brayton cycle but with smaller power output. Wang et al [34] optimized the power and the efficiency of an open-cycle intercooled Brayton cycle. The numerical examples showed that the increase in the effectiveness of intercooler increases both the maximum cycle thermodynamic first-law efficiency and the maximum net power output.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Thermodynamic Modeling for Open Combined Regenerative Brayton and Inverse Brayton Cycles with Regeneration before the Inverse Cycle

Chen

Zhang

Sun

2012

Entropy

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A thermodynamic model of an open combined regenerative Brayton and inverse Brayton cycles with regeneration before the inverse cycle is established in this paper by using thermodynamic optimization theory. The flow processes of the working fluid with the pressure drops and the size constraint of the real power plant are modeled. There are 13 flow resistances encountered by the working fluid stream for the cycle model. Four of these, the friction through the blades and vanes of the compressors and the turbines, are related to the isentropic efficiencies. The remaining nine flow resistances are always present because of the changes in flow cross-section at the compressor inlet of the top cycle, regenerator inlet and outlet, combustion chamber inlet and outlet, turbine outlet of the top cycle, turbine outlet of the bottom cycle, heat exchanger inlet, and compressor inlet of the bottom cycle. These resistances associated with the flow through various cross-sectional areas are derived as functions of the compressor inlet relative pressure drop of the top cycle, and control the air flow rate, the net power output and the thermal efficiency. The analytical formulae about the power output, efficiency and other coefficients are derived with 13 pressure drop losses. It is found that the combined cycle with regenerator can reach higher thermal efficiency but smaller power output than those of the base combined cycle at small compressor inlet relative pressure drop of the top cycle.

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Section: Cycle Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermodynamic Modeling for Open Combined Regenerative Brayton and Inverse Brayton Cycles with Regeneration before the Inverse Cycle

Chen

Zhang

Sun

2012

Entropy

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show abstract

“…With consideration of irreversibilities in flow, mass and heat transfer, the results obtained by using FTT are closer to those of the real devices. FTT can also be well used in the performance analysis of direct and reverse Brayton cycles [24,[26][27][28][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44].…”

Section: Introductionmentioning

confidence: 99%

“…The similar studies for various open direct and reverse Brayton cycles were performed in Refs [30][31][32][33][34][35][36][37][38][39][40][41][42]…”

mentioning

confidence: 99%

Thermodynamic analysis and optimization of an air Brayton cycle for recovering waste heat of blast furnace slag

Zhang

Chen

Yang

et al. 2015

Applied Thermal Engineering

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“…Other optimizations of Brayton-like cycles can be found in the following reviews (Durmayas et al 1997;Hoffman et al 2003). Recent optimizations of Brayton-like models were made in (Herrera et al, 2006;Lewins, 2005;Ust, 2006;Wang et al, 2008). For the isentropic Brayton cycle (1-2s-3-4s-1) its efficiency is given by (Fig.…”

Section: The Optimal Allocation Of the Heat Exchangers For A Brayton-mentioning

confidence: 99%

On the Optimal Allocation of the Heat Exchangers of Irreversible Power Cycles

Aragón-González¹,

León-Galicia²,

Morales-Gómez³

2011

Heat Analysis and Thermodynamic Effects

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Performance optimisation of open cycle intercooled gas turbine power plant with pressure drop irreversibilities

Cited by 22 publications

References 6 publications

Thermodynamic Modeling for Open Combined Regenerative Brayton and Inverse Brayton Cycles with Regeneration before the Inverse Cycle

Thermodynamic Modeling for Open Combined Regenerative Brayton and Inverse Brayton Cycles with Regeneration before the Inverse Cycle

Thermodynamic analysis and optimization of an air Brayton cycle for recovering waste heat of blast furnace slag

On the Optimal Allocation of the Heat Exchangers of Irreversible Power Cycles

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