标题: Water wash [打印本页] 作者: 航空 时间: 2011-4-14 10:46:34 标题: Water wash
作者: 航空 时间: 2011-4-14 10:46:57
CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, December 2000 WTT face to face or Export are Prohibited Water wash CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, December 2000 WTT face to face or Export are Prohibited Water wash • Fleet experience Water wash performed on PCA engine showed an EGT margin gain of 12°C Two recent engine water wash on -7B27B engines,showed gain between 15°C and 20°C One other operator report of water washing every 1000 hours – No data of gain but low deterioration rate reported CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, December 2000 WTT face to face or Export are Prohibited Transavia experience CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, December 2000 WTT face to face or Export are Prohibited Water Wash • Water Wash Two Transavia engines (-7B27) washed on Nov 9th 2000, ESN 874-201 pos1 :TSN/CSN 9576 / 3470 ESN 874-204 pos2 : TSN/CSN 9576/ 3470 The two engines were successfully water washed within two hours and half using a procedure with dedicated equipment for direct water ingestion in the primary flowpath. Preliminary results showed significative EGT margin gain ; between 15°C and 22°C Values to be confirmed with more performance datas feed-back. CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, December 2000 WTT face to face or Export are Prohibited Water Wash Transavia experience Two probes were installed on the Fan Frame internal V groove ring 180° CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, December 2000 WTT face to face or Export are Prohibited Water Wash View of remaining Water in the exhaust nozzle just after the water wash. CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, December 2000 WTT face to face or Export are Prohibited Water Wash On going Continue to monitor EGT margin on recently washed engines to confirm results and retention Continue to monitor fleet experience作者: kinran 时间: 2011-6-4 23:28:44
