公开(公告)号：US20190331336A1

公开(公告)日：2019-10-31

申请号：US16358426

申请日：2019-03-19

Applicant: Suncor Energy Inc.

Inventor： Fei QI ,  Mathew WALKER

IPC: F22B37/56 ,  F28F27/00 ,  F22B35/18

Abstract: The following provides a system and method to predict an indicator of tube fouling in a fired apparatus such as a boiler. Historical data can be collected when the tubing is still considered to be clean, and used to build a first model between an indicator of fouling, such as tube skin temperature, and boiler load. The actual measurement of that indicator of fouling can then be compared against the model output, such that the error between the model and measurement is considered an indication of the tube fouling. Moreover, the rate of change of the model error can be used to measure the fouling rate. Next, historical data on the fluid feed quality can be collected and together with the historical error rate change data can be combined to develop a second model. This second model reflects how fluid feed quality variables may affect the fouling rate over time.