Better Manage Excess Air

摘要

WHAT I'M about to discuss here has been covered in other CP articles, e.g., "Improve Sustainability on a Shoestring," http://goo.gl/iUE1Yo. Nevertheless, I still feel it's important enough to talk about based on some first-hand practical experiences my colleague, Subodh Chaudhari, and I have had over the past two years doing BoilerMACT energy assessments. We assessed more than 100 process heaters and steam generation equipment along with their historical operating data (hourly averages for one year). These units varied significantly in design, heat duty and operational characteristics, but still had commonalities when it came to excess air control, heat recovery and operating efficiencies.