Burner Testing – Miscellaneous Tests
If the heater design includes air preheat, some of these tests should be carried out with and without preheated air. The same goes for forced draft.
If pilot burners are a part of the design (usually not), all tests should be carried out with the pilot operating. Check periodically to see that it is still lit. If at any time the pilot blows out, it should be rejected and a larger one installed.
Liquid naphtha capacity curves should be nearly linear with fuel header pressure. In addition to the above tests, check whether steam atomization is needed at all by reducing the steam pressure and observing the flame. Test the operation of the safety interlock and fuel change-over system.
Various combinations of gas-liquid fuel can be explored in tests similar to those above.