论文信息 - Second-law analysis and optimisation for combined Brayton and inverse Brayton cycles

Second-law analysis and optimisation for combined Brayton and inverse Brayton cycles

SYNOPSIS A second-law analysis has been carried out for combined Brayton and inverse Brayton cycles. The analytical formulae of exergy balance, exergy and work output, exergy efficiency, optimal exergy efficiency and minimum exergy loss, and optimal expansion pressure of the bottom cycle are derived. The largest exergy loss location is determined. The influences of various parameters on the optimal exergy efficiency, minimum exergy loss and other performances are analysed by numerical examples.

Fengrui Sun | Chih Wu | Lingen Chen | Wanli Zhang

[1] Brian Agnew,et al. A hybrid gas turbine cycle (Brayton/Ericsson): An alternative to conventional combined gas and steam turbine power plant , 1997 .

[2] A. Bejan. Fundamentals of exergy analysis, entropy generation minimization, and the generation of flow architecture , 2002 .

[3] Marc A. Rosen,et al. Second‐law analysis: approaches and implications , 1999 .

[4] I. Dincer,et al. Exergy methods for assessing and comparing thermal storage systems , 2003 .

[5] Michael J. Moran,et al. Availability analysis: A guide to efficient energy use , 1982 .

[6] Brian Agnew,et al. Examination of the performance envelope of combined Rankine, Brayton and two parallel inverse Brayton cycles , 2004 .

[7] Kwang J. Kim,et al. Second law analysis and optimization of a combined triple power cycle , 2002 .

[8] Fengrui Sun,et al. Power, power density and efficiency optimization of an endoreversible Braysson cycle , 2002 .

[9] I Potts,et al. Simulation of combined Brayton and inverse Brayton cycles , 2003 .

[10] Fengrui Sun,et al. Exergy analysis for a Braysson cycle , 2001 .