What does the term priming refer to in steam systems?

Priming in steam systems involves the carrying of water particles into the steam piping. This phenomenon occurs when the water in the steam boiler is agitated to a point where it creates steam bubbles that can entrain water. If the boiler water level is too high or the steam generation rate is too rapid, these water particles can be carried along with the steam, leading to wet steam. Wet steam can significantly impact the efficiency and safety of the steam system, as it can result in water hammer or damage to steam equipment.

Understanding priming is crucial for operators to ensure that the steam produced is as dry as possible to maintain system efficiency and prevent potential mechanical issues. Proper management of water levels and steam production rates is essential in preventing priming.