Every oxidizer system is subject to stack testing to ascertain destruction efficiency after installation and at regular intervals. Certified stack testing can be expensive, so it is prudent to be prepared for the test.
After determining the required schedule for the test, we recommend that you step back and take a look at your system. If the system is older, it might be prudent to perform an unofficial test to determine the current performance. NESTEC can assist you in this effort.
The advantage is that a complete assessment of the oxidizer system will be performed and any adjustments will be completed. Typically, valves and burner systems are adjusted to maximize performance, but other areas of concern might be leaks in the system or damage to heat exchangers. Correcting these prior to your stack test will help ensure compliance to your air permit.
“After determining the required schedule for the test, we recommend that you step back and take a look at your system.”
Of course, the preliminary test should be completed under conditions as close to possible to the actual test requirements. NESTEC does not complete certified stack tests but can refer you to a number of companies that can facilitate them. To prevent any conflict of interest, we typically recommend three local or regional companies when a customer requests us to do so.
After completing the initial assessment of your system’s performance and selecting your stack testing firm, you should schedule the test. If necessary, you should contact your regulatory agency. Good stack testing companies are in demand, so scheduling should not wait until the last minute.
A preliminary meeting or phone call with the stack testing company is important to ensure the correct people and equipment are available. A review of the process and equipment being tested should be completed, including access and other physical requirements. The facility environmental staff should also be in contact with engineering, production and maintenance personnel to ensure the system will be in operation as expected when the stack test firm is on-site.
During the actual stack test, adequate available space and utilities are critical. To ensure the best possible result with minimal disruption, the appropriate plant personnel must remain involved though both the testing and report generation process. The report generated should be reviewed for completeness and accuracy prior to submittal.