How can you distinguish between condensate with flash steam and live steam in discharge?

The distinction between condensate with flash steam and live steam in discharge is primarily based on the behavior of the steam as it exits the system. When observing the discharge, an intermittent white cloud indicates that the discharge contains flash steam, which occurs when hot condensate is relieved of pressure and vaporizes quickly, creating bursts of steam that appear as a white cloud. This is due to the rapid conversion of water into steam as it escapes the higher pressure environment.

In contrast, live steam generally shows a more continuous and steady discharge, which may appear less variable than the intermittent bursts associated with flash steam. The other options do not accurately represent the behavior related to flash steam and condensate. For instance, a constant white cloud would suggest continuous live steam, while a clear and steady discharge typically indicates that there is little or no steam present. Lastly, a thick and gray discharge could suggest other issues, such as the presence of oil or other contaminants. Therefore, recognizing the intermittent nature of the discharge is key to identifying the presence of condensate with flash steam.