Ozone For Cooling Tower Systems - An Update And Lessons Learned At The Kennedy Space Center

摘要

Power plants use ammonia (or amines) for pH control of the condensate/feedwater circuits and hydrazine (or organic substitutes) for oxygen scavenging. Organic amines and oxygen scavengers break down into organic acids and carbon dioxide, which increase steam conductivity. This has caused difficulties in attaining cation conductivity limits in steam during startup, and in many cases after start-up. Experience has shown that switching to ammonia and hydrazine during the start-up phase improves the chances of attaining the steam turbine vendor's steam quality limits in a shorter time.