Enhancement of combined cycle performance using transpiration cooling of gas turbine blades with steam

被引：9

作者：

Kumar, Sanjay ^{[1
]}

Singh, Onkar ^{[1
]}

机构：

[1] Harcourt Butler Technol Inst, Dept Mech Engn, Kanpur 208002, Uttar Pradesh, India

来源：

JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY | 2014年 / 28卷 / 06期

关键词：

Air /steam cooling medium; Combined cycle; Combined cycle performance; Transpiration cooling of gas turbine blades; TEMPERATURES; EFFICIENCY;

D O I：

10.1007/s12206-014-0536-1

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Gas/steam combined cycle is synergetic combination of Brayton cycle based topping cycle and Rankine cycle based bottoming cycle, which have capability of operating independently too. Combined cycle performance depends on the constituent cycles and it can be reasonably improved by enhancing gas cycle performance using gas turbine blade cooling. Amongst different cooling techniques the transpiration cooling offers effective utilization of coolant as compared to film cooling because of better shrouding of blade surface as the coolant is discharged from entire blade surface. The present work deals with evaluation of performance enhancement of combined cycle by using steam transpiration cooling of gas turbine blades. The combined cycle performance parameters e.g. overall efficiency and specific power output etc. have been compared for air transpiration cooling and steam transpiration cooling. The results revealed that for the specified conditions the steam is superior coolant in comparison to air and the combined cycle performance can be enhanced by applying transpiration cooling in gas turbine blades with steam as coolant. With a turbine inlet temperature of 1800 K and compressor pressure ratio of 23, the combined cycle efficiency with steam transpiration cooling of gas turbine blades is higher by 1.94 percent approximately as compared to the efficiency of combined cycle with air transpiration cooling of gas turbine blades.

引用

页码：2429 / 2437

页数：9

共 50 条

[21] Effect of steam injection in gas turbine combustion chamber on the performance of a natural gas fired combined cycle power generation unit [J].

Alaefour, Ibrahim ;

Reddy, B. V. .

MECHANICAL AND AEROSPACE ENGINEERING, PTS 1-7, 2012, 110-116 :4574-+

[22] Performance Analysis of Gas-Steam Combined Cycle with Coke Oven Gas [J].

Zhao, Hongbin ;

Liu, Chang .

2011 ASIA-PACIFIC POWER AND ENERGY ENGINEERING CONFERENCE (APPEEC), 2011,

[23] Exergetic evaluation of gas-turbine based combined cycle system with vapor absorption inlet cooling [J].

Mohapatra, Alok K. ;

Sanjay .

APPLIED THERMAL ENGINEERING, 2018, 136 :431-443

[24] Performance Analysis of Combined Cycle with Air Breathing Derivative Gas Turbine, Heat Recovery Steam Generator, and Steam Turbine as LNG Tanker Main Engine Propulsion System [J].

Nirbito, Wahyu ;

Budiyanto, Muhammad Arif ;

Muliadi, Robby .

JOURNAL OF MARINE SCIENCE AND ENGINEERING, 2020, 8 (09)

[25] Part-load performance analysis of a combined cycle with intermediate recuperated gas turbine [J].

Li, Yongyi ;

Zhang, Guoqiang ;

Wang, Ligang ;

Yang, Yongping .

ENERGY CONVERSION AND MANAGEMENT, 2020, 205

[26] Optimum Performance Improvements of the Combined Cycle Based on an Intercooler-Reheated Gas Turbine [J].

Ibrahim, Thamir K. ;

Rahman, M. M. .

JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME, 2015, 137 (06)

[27] Performance enhancement of regenerative gas turbine: air bottoming combined cycle using bypass valve and heat exchanger—energy and exergy analysis [J].

M. N. Khan ;

Tawfeeq Abdullah Alkanhal ;

Jihen Majdoubi ;

Iskander Tlili .

Journal of Thermal Analysis and Calorimetry, 2021, 144 :821-834

[28] Influence of different means of turbine blade cooling on the thermodynamic performance of combined cycle [J].

Sanjay ;

Singh, Onkar ;

Prasad, B. N. .

APPLIED THERMAL ENGINEERING, 2008, 28 (17-18) :2315-2326

[29] Gas turbine steam injection and combined power cycles using fog inlet cooling and biomass fuel: A thermodynamic assessment [J].

Athari, Hassan ;

Soltani, Saeed ;

Rosen, Marc A. ;

Mahmoudi, Seyed Mohammad Seyed ;

Morosuk, Tatiana .

RENEWABLE ENERGY, 2016, 92 :95-103

[30] Exergoeconomic study of gas turbine steam injection and combined power cycles using fog inlet cooling and biomass fuel [J].

Athari, Hassan ;

Soltani, Saeed ;

Rosen, Marc A. ;

Gavifekr, Masood Kordoghli ;

Morosuk, Tatiana .

RENEWABLE ENERGY, 2016, 96 :715-726

← 1 2 3 4 5 →