Stack Test Specialists

Archive for the ‘Methods’ Category

Hex Chrome in a Hot Stack

Sunday, March 23rd, 2008 Posted in Methods | 2 Comments »

The first few sentences of SW846-0061 states the test should not be conducted in stacks 300F or greater.  I recently completed three good runs in a stack averaging about 330F.  The Teflon components held up to the temperatures, although they ...

Stack Temperature Thermocouple Calibrations

Saturday, March 15th, 2008 Posted in Methods | 4 Comments »

On a recent stack test I witnessed a unique and effective way of calibrating the stack thermocouples. Section 10.3.1 of Method 2 calls for the thermocouple to be calibrated within 10% of absolute average stack temperature. I have typically calibrated ...

Leak Check your Pitots

Tuesday, March 11th, 2008 Posted in Methods | 2 Comments »

Leak checking pitots is an important and often overlooked portion of stack testing.  This is probably because of how maddening it can be getting the pitot lines to hold at least 3.5" H2O pressure without blowing the oil all around ...