Study on the Mechanism of Wet-clogging Issue in Gas Turbine Inlet Air System and Correction Schemes

doi:10.11930/j.issn.1004-9649.201809095

Abstract

Abstract: When gas turbines are operated under high humidity environments, the air intake filtration systems may experience rapid increase of resistance, which can seriously affect the security and economy of gas turbine operations, i.e. "wet-clogging". Based on the studies on the real case, the internal mechanisms of wet-clogging have been analyzed thoroughly in the paper. Furthermore, a passive preventive scheme by improving the water mist endurance and an active preventive scheme by adjusting the relative humidity and temperature of the inlet air were put forward respectively. According to the results from water mist endurance testing and compressor inlet bleeds heating (IBH), both approaches mentioned above are capable of resolving the issue of wet-clogging effectively.

Key words: air intake filtration systems, wet-clogging, water mist endurance, air intake heating

CLC Number:

TK01
TK47

ZHANG Tao, LIU Zhitan, FU Zhongguang, HAO Hongliang, ZHU Hongfei, YAN Zhiyuan. Study on the Mechanism of Wet-clogging Issue in Gas Turbine Inlet Air System and Correction Schemes[J]. Electric Power, 2018, 51(12): 29-35.

Add to citation manager EndNote|Ris|BibTeX

URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.201809095

https://www.electricpower.com.cn/EN/Y2018/V51/I12/29

References 15

[1]	MUND F C, PILIDIS P. Gas turbine compressor washing:Historical developments, trends and main design parameters for online systems[J]. Journal of Engineering for Gas Turbines and Power, 2006, 128(2):344-353.
[2]	KURZ R, BRUN K. Degradation in gas turbine systems[J]. Journal of Engineering for Gas Turbines and Power, 2000, 123(1):70-77.
[3]	WILCOX M, KURZ R, BRUN K. Successful selection and operation of gas turbine inlet filtration systems[C]//Proceedings of the 40th Turbomachinery Symposium. Texas A&M University. Turbomachinery Laboratories, 2011.
[4]	WILCOX M, BALDWIN R, GARCIA-HERNANDEZ A, et al. Guideline for gas turbine inlet air filtration systems[M]. Gas Machinery Research Council, Dallas, TX, 2010.
[5]	BREKKE O, BAKKEN L E. Performance deterioration of intake air filters for gas turbines in offshore installations[C]//ASME Turbo Expo 2010:Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2010:685-694.
[6]	杨顺虎. 燃气-蒸汽联合循环发电机组设计中几个节能问题探讨[J]. 中国电力, 2002, 35(4):62-65. YANG Shunhu. Investigation on some energy-saving problems in the design of gas-steam combined cycle generation unit[J]. Electric Power, 2002, 35(4):62-65.
[7]	富兆龙, 刘志勇, 张琨鹏, 等. PG9171E型燃气轮机温度控制分析[J]. 中国电力, 2015, 48(2):31-37. FU Zhaolong, LIU Zhiyong, ZHANG Kunpeng, et al. Analysis on temperature control for PG9171E gas turbines[J]. Electric Power, 2015, 48(2):31-37.
[8]	刘闯, 刘勇, 金仁瀚, 等. 大气温度和压力对9E型联合循环机组性能的影响[J]. 重庆理工大学学报(自然科学), 2016, 30(11):84-90. LIU Chuang, LIU Yong, JIN Renhan, et al. The Influence of atmospheric temperature and pressure on 9E combined cycle unit performance[J]. Journal of Chongqing University of Technology(Natural Science), 2016, 30(11):84-90.
[9]	李俊, 龙涛. 燃气轮机高效空气过滤器在极端天气下的应用对策[J]. 燃气轮机技术, 2015, 28(2):68-72. LI Jun, LONG Tao. Countermeasures of gas turbine high efficiency air filters in extreme weather conditions[J]. Gas Turbine Technology, 2015, 28(2):68-72.
[10]	刘志坦, 李玉刚, 王凯. 中国燃气电厂烟气排放现状及政策趋势[J]. 中国电力, 2018, 51(1):147-153. LIU Zhitan, LI Yugang, WANG Kai. The environmental protection status of China's Gas power plants and the trending in policies[J]. Electric Power, 2018, 51(1):147-153.
[11]	曾彪, 张旭, 鲍谦. 湿空气绝热节流系数计算及讨论[J]. 暖通空调, 2011, 41(9):115-117. ZENG Biao, ZHANG Xu, BAO Qian. Calculation and discussion of adiabatic throttling coefficient for moist air[J]. Heating Ventilating& Air Conditioning, 2011, 41(9):115-117.
[12]	刘鹏. 折褶滤芯过滤阻力的数值模拟及分析[J]. 过滤与分离, 2017, 27(2):14-16. LIU Peng. Numerical simulation and analysis of filtration resistance of folding filter element[J]. Journal of Filtration and Separation, 2017, 27(2):14-16.
[13]	DELGADO-GARIBAY H, RANSOM D, WILCOX M. Filter failure during high humidity conditions[C]//ASME Turbo Expo 2010:Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2010:185-193.
[14]	SAMUEL O, FIDELISI A, OLAYINKAS O. Performance modeling of industrial gas turbines with inlet air filtration system[J]. Case Studies in Thermal Engineering, 2015(5):160-167.
[15]	STIAN M, LARS E. B. Gas turbine operation offshore:increased operating interval and higher engine performance through optimized intake air filter system[C]//Proceedings of ASME Turbo Expo. 2016:Turbomachinery Technical Conference and Exposition. 2016.