The 155-C A/B/C heat exchangers, belonging to an olefins plant, which heat the water used in reboilers of some fractionation columns, have historically presented energy efficiency problems due to fouling by polymerization in the tubes, the side through which the process water passes. This was used as a basis for simulating different mechanical models in Aspen EDR, taking into account the fouling problem in the conceptual design criteria. The book...