Modern Steam Hammer Load Analyses Are Not as Safe as You Think – New, Improved Methods Can Help скачать в хорошем качестве

Modern Steam Hammer Load Analyses Are Not as Safe as You Think – New, Improved Methods Can Help

When steam turbines trip the turbine stop valve closes rapidly which generates a steam hammer transient wave. This wave can cause significant transient loads on piping. The de facto method of predicting these loads is the Goodling Method from the 1980s. AFT’s newest software product AFT xStream revealed that the Goodling Method was not always conservative – which means that existing fossil and nuclear power stations are not as safe as believed. Using this information, an improved analytic method has been developed and will be discussed. For more information, visit, www.aft.com 00:00 Introduction 03:55 Acoustic wave behavior 12:21 Causes & Methods 19:55 What Goodling Missed 34:11 Improved Method 46:08 Predicted Forces 47:20 Conclusions