Anonymous
Dear Espana,
Others variables like flow (constant),inlet pressure (raising with delta P), delta P (raising with COT), COT (constant), fuel gas (raising with skin) , burner behavior (ok). We did online spalling for this pass, but not successful;
This pass some time gives 4 month run length & some time 25 days. We doubted feed quality, but other pass & heaters are normal. Any other reasons???? like Na deposits only in this passs?? is it possible?///