We offer a unique technique that determines the optimal schedule to clean the different heat exchangers of a pre-heating train. The technique :  

• Considers the cost of cleaning
• Takes into account the eventual throughput loss.
• Takes into account the energy surge when an exchanger goes off line.
• Considers the future plant turnarounds.
• Considers likely variations in energy prices. 
• Is suitable for any configuration
• Takes into account the uncertainties in future processing (different crudes) and the corresponding fouling coefficients
• Is capable of handling logistic and process constraints (maximum number of cleaning crews, minimum/maximum  temperature of individual streams, etc).

When applied to crude units, the technique renders 

• A schedule of cleaning that is usually not cyclic (Cyclic schedules are not optimal).
• Alternatives that manage finanacial risk.
• SAVINGS Run in the hundreds of thousand dollars per year.

If you have a history set of data on temperatures and some minimal information on the cleaning costs, we can make a first assessment on the amount of savings you are likely to attain using this advanced scheduling option.