Simulation and analysis of humid air turbine cycle based on aeroderivative three-shaft gas turbine

Abstract

Due to the fact that the turbine outlet temperature of aeroderivative three-shaft gas turbine is low, the conventional combined cycle is not suitable for three-shaft gas turbines. However, the humid air turbine (HAT) cycle provides a new choice for aeroderivative gas turbine because the humidification process does not require high temperature. Existing HAT cycle plants are all based on single-shaft gas turbines due to their simple structures, therefore converting aeroderivative three-shaft gas turbine into HAT cycle still lacks sufficient research. This paper proposes a HAT cycle model on a basis of an aeroderivative three-shaft gas turbine. Detailed HAT cycle modelling of saturator, gas turbine and heat exchanger are carried out based on the modular modeling method. The models are verified by simulations on the aeroderivative three-shaft gas turbine. Simulation results show that the studied gas turbine with original size and characteristics could not reach the original turbine inlet temperature because of the introduction of water. However, the efficiency still increases by 0.16% when the HAT cycle runs at the designed power of the simple cycle. Furthermore, simulations considering turbine modifications show that the efficiency could be significantly improved. The results obtained in the paper can provide reference for design and analysis of HAT cycle based on multi-shaft gas turbine especially the aeroderivative gas turbine.

Keywords

humid air turbine / aeroderivative gas turbine / saturator / simulation

References

[1] RAO A D. Process for producing power: US patent No. 4829763 [P]. 1989.

[2] NakhamkinM, PeliniR, PatelM I, WolkR. Power augmentation of heavy duty and two-shaft small and medium capacity combustion turbines with application of humid air injection and dry air injection technologies [C]. ASME 2004 Power Conference, 2004, Baltimore, ASME: 301306

[3] PoullikkasA. An overview of current and future sustainable gas turbine technologies [J]. Renewable & Sustainable Energy Reviews, 2005, 9(5): 409-443

[4] ParenteJ O S, TraversoA, MassardoA F. Saturator analysis for an evaporative gas turbine cycle [J]. Applied Thermal Engineering, 2003, 23(10): 1275-1293

[5] ConsonniS, LarsonE D. Biomass-gasifier/aeroderivative gas turbine combined cycles. Part A: Technologies and performance modeling [J]. Journal of Engineering for Gas Turbines & Power, 1996, 118(3): 507-515

[6] ConsonniS, LarsonE D. Biomass -gasifier/aeroderivative gas turbine combined cycles. Part B: Performance calculations and economic assessment [J]. Journal of Engineering for Gas Turbines & Power, 1996, 118(3): 516-525

[7] ÅgrenN D, WestermarkM O, BartlettM A, LindquistT. First experiments on an evaporative gas turbine pilot power plant: Water circuit chemistry and humidification evaluation [J]. Journal of Engineering for Gas Turbines and Power-Transactions of the ASME, 2002, 124(1): 96-102

[8] HatamiyaS, ArakiH, HiguchiS. An evaluation of advanced humid air turbine system with water recovery [C]. ASME Turbo Expo 2004: Power for Land, Sea, and Air, 2004, 7: 585-591

[9] KurokiH, HatamiyaS, ShibataT, KoganezawaT, KizukaN, HatamiyaS, MarushimaS. Development of elemental technologies for advanced humid air turbine system [J]. Journal of Engineering for Gas Turbines and Power-Transactions of the ASME, 2008, 130(3): 031701

[10] TakedaT, ArakiH, IwaiY, MorisakiT, SatoK. Test Results of 40MW-class advanced humid air turbine and exhaust gas water recovery system [C]. ASME Turbo Expo 2014: Turbine Technical Conference and Exposition, 2014, Düsseldorf, ASME

[11] De PaepeW, CarreroM M, BramS, ContinoF. T100 micro gas turbine converted to full humid air operation: test rig evaluation [C]. ASME Turbo Expo 2014: Turbine Technical Conference and Exposition, 2014, Düsseldorf, ASME

[12] ZhangS-j, XiaoY-han. Steady-state off-design thermodynamic performance analysis of a humid air turbine based on a micro turbine [C]. ASME Turbo Expo 2006: Power for Land, Sea, and Air, 2006, Barcelona, ASME: 287-296

[13] WanK-f, ZhangS-j, WangJ, XiaoY-han. Performance of humid air turbine with exhaust gas expanded to below ambient pressure based on microturbine [J]. Energy Conversion & Management, 2010, 51(11): 2127-2133

[14] OuyangY-y, ZhangS-j, XuZ, WangB, XiaoY-han. Dynamic modeling and simulation of a micro humid air turbine [J]. Gas Turbine Technology, 2012, 25(3): 21-27

[15] CarreroM M, FerrariM L D, PaepeW, ParenteA, BramS, ContinoF. Transient simulations of a T100 micro gas turbine converted into a micro humid air turbine [C]. ASME Turbo Expo 2015: Turbine Technical Conference and Exposition, 2015, Montreal, ASME

[16] NybergB, ThernM. Thermodynamic studies of a HAT cycle and its components [J]. Applied Energy, 2012, 89(1): 315-321

[17] SIMTECH. IPSEpro Design Suite [EB/OL]. http://www.simtechnology.com/CMS/index.php/ipsepro/syst em-description/ipsepro-design-suite.

[18] WeiC-y, ZangS-sheng. Experimental investigation on the off-design performance of a small-sized humid air turbine cycle [J]. Applied Thermal Engineering, 2013, 51(51): 166-176