How often should an ammonia system be manually purged of non-condensables?

The appropriate approach to purging an ammonia system of non-condensables is determined by the system's specific operation and the conditions under which it runs. Purging as needed based on monitoring allows operators to assess the levels of non-condensables present in the system at any given time and effectively manage the maintenance of the ammonia system.

Non-condensable gases can accumulate in ammonia systems, impacting efficiencies and increasing the risk of operational issues. By monitoring the system regularly, operators can identify when the concentration of non-condensables reaches a level that necessitates purging. This targeted approach not only helps in maintaining optimum system performance but also minimizes unnecessary purgings that could disrupt operations or lead to increased ammonia release.

Other options, such as daily or monthly purges, do not consider the actual conditions and operational needs of the system, which can result in either excessive purging or insufficient maintenance. Monitoring-based purging ensures that actions are taken judiciously, making it the most effective choice for managing non-condensables in ammonia systems.