ANALISIS KEGAGALAN MATERIAL PIPA SUPPLY GLAND SEAL STEAM TURBINE PLTU UBOH 3 LONTAR UNIT 1
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Institusion
Institut Teknologi Perusahaan Listrik Negara
Author
SENDIKUNCARA, SEBAHARANI
Pramono, Andika W.
Sulistiyo, Eko
Pramono, Andika W.
Sulistiyo, Eko
Subject
Teknik Mesin
Datestamp
2019-10-07 04:26:51
Abstract :
On the steam power plants in PLTU UBOH 3 LONTAR found a component in the unit 1 where there was leakage of supply gland seal steam pipe from the auxiliary steam. This caused control-control valve around the area of the leakage cannot transmits the signals that resulted the Trip Unit or in this case could occur fatal damage to the equipment. In the tube supply gland seal steam which failures in the form of creep that occurs in the area around the elbow that resulted in the tube in the elbow area are not able to restrain the steam pressure and caused the pipe broken and twisted. Given the importance of gland seal steam at the turbine that serves as a steam seal on the turbine, the author tested the material of tube supply gland seal steam with metallography testing, hardness testing (Vickers method), chemical composition analysis (spark oes), SEM, EDAX, and MAPPING where expected from the testing results can reveal the failure process.
On the steam power plants in PLTU UBOH 3 LONTAR found a component in the unit 1 where there was leakage of supply gland seal steam pipe from the auxiliary steam. This caused control-control valve around the area of the leakage cannot transmits the signals that resulted the Trip Unit or in this case could occur fatal damage to the equipment. In the tube supply gland seal steam which failures in the form of creep that occurs in the area around the elbow that resulted in the tube in the elbow area are not able to restrain the steam pressure and caused the pipe broken and twisted. Given the importance of gland seal steam at the turbine that serves as a steam seal on the turbine, the author tested the material of tube supply gland seal steam with metallography testing, hardness testing (Vickers method), chemical composition analysis (spark oes), SEM, EDAX, and MAPPING where expected from the testing results can reveal the failure process.
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