Guest
There are two identical turbines operating in India of 16.5 MW rating since 1977. In one turbine, turbine blades have failed five times while there is no failure in the other. The blade's strenght and other testing were carried out but no abnormality was observed. Normally, one turbine is in service and other turbine is on stand by. This is a back pressure turbine which supplies steam to the process of a chemical industry. There are two extraction lines, one is controlled extraction and other is un controlled extraction. Extraction steam going to the HP and LP heaters. HP and LP heaters and deareator are common for both the machine. What could be the reasons of frequent failure ? Is it is process oriented or manufacuring related ? Kindly reply
(A.K.Sinha)
(A.K.Sinha)