Evaluation of CFCC liners with EBC after field testing in a gas turbine
Evaluation of CFCC liners with EBC after field testing in a gas turbine
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DOI：
10.1016/s0955-2219(02)00142-5
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发表时间：
2002
影响因子：
5.7
通讯作者：
J. Kimmel;Narendernath Miriyala;J. Price;K. More;P. Tortorelli;H. Eaton;G. Linsey;E. Sun
中科院分区：
文献类型：
--
作者：
J. Kimmel;Narendernath Miriyala;J. Price;K. More;P. Tortorelli;H. Eaton;G. Linsey;E. Sun
在美国能源部（DOE）赞助的陶瓷固定燃气涡轮机（CSGT）计划下，由Solar Turbines Incorporated领导的团队成功设计了发动机，采用碳化硅/碳化硅（SiC/SiC）连续纤维增强陶瓷复合材料（CFCC）燃烧室衬里。它们的低NOx和CO排放潜力在8次现场发动机试验中得到了证明，总持续时间超过35，000小时。在前四次现场试验中，衬套的耐久性主要受到SiC在燃气涡轮机燃烧室高蒸汽环境中的长期稳定性的限制。因此，人们认识到需要一种环境屏障涂层（EBC）来满足30，000小时的使用寿命目标。在美国国家航空航天局高速民用运输机推进材料计划下开发的EBC在CSGT计划下进行了改进和优化，并由联合技术研究中心（UTRC）从第五场试验开始应用于SiC/SiC衬层。本文介绍了在美国加利福尼亚州贝克斯菲尔德德士古公司进行的第五次现场试验13，937小时后对SiC/SiC药型罩的EBC的评价。
Under the Ceramic Stationary Gas Turbine (CSGT) Program sponsored by the U.S. Department of Energy (DOE), a team led by Solar Turbines Incorporated has successfully designed engines, utilizing silicon carbide/silicon carbide (SiC/SiC) continuous fiber-reinforced ceramic composite (CFCC) combustor liners. Their potential for low NOxand CO emissions was demonstrated in eight field-engine tests for a total duration of more than 35,000 h. In the first four field tests, the durability of the liners was limited primarily by the long-term stability of SiC in the high steam environment of the gas turbine combustor. Consequently, the need for an environmental barrier coating (EBC) to meet the 30,000-h life goal was recognized. An EBC developed under the National Aeronautics and Space Administration high speed civil transport, enabling propulsion materials program was improved and optimized under the CSGT program and applied on the SiC/SiC liners by United Technologies Research Center (UTRC) from the fifth field test onwards. The evaluation of the EBC on SiC/SiC liners after the fifth field test with 13,937-h at Texaco, Bakersfield, CA, USA is presented in this paper.