{"id":{"repo_id":"uwo","oai_identifier":"oai:uwo.scholaris.ca:20.500.14721/39596"},"canonical_url":"https://search.dev.ndltd.org/etd/uwo/oai:uwo.scholaris.ca:20.500.14721/39596","repository":{"repo_id":"uwo","name":"Western University","base_url":"https://uwo.scholaris.ca/server/oai/request"},"display":{"title":"Development of Measurement Methods for Monitoring the Effects of Shed Fouling in a Fluid Coker Stripper","abstract":"Fouling of the stripper sheds in fluid and flexi-cokers restricts solids recirculation, leading to flooding and a unit shutdown. This thesis develops non-intrusive methods to detect fouling growth and provide advanced warning before critical operating limits are reached. Experiments were performed in a geometrically scaled fluid coker using physical obstructions to mimic shed fouling. Differential pressure, radiation transmission, and heat transfer measurements were performed above the sheds to assess the effects of fouling. Each measurement technique can detect the changes in hydrodynamics from adding an obstruction to clean stripper sheds. When fouling obstructed 83% of the sheds’ open area, the required solids recirculation rate could not be maintained. Using various signal analysis techniques and wavelet filtering, pressure and radiation measurements can provide advanced warning that fouling is approaching critical conditions, as early as 89% and 86% of the critical fouling level, respectively.","abstract_html":"Fouling of the stripper sheds in fluid and flexi-cokers restricts solids recirculation, leading to flooding and a unit shutdown. This thesis develops non-intrusive methods to detect fouling growth and provide advanced warning before critical operating limits are reached. Experiments were performed in a geometrically scaled fluid coker using physical obstructions to mimic shed fouling. Differential pressure, radiation transmission, and heat transfer measurements were performed above the sheds to assess the effects of fouling. Each measurement technique can detect the changes in hydrodynamics from adding an obstruction to clean stripper sheds. When fouling obstructed 83% of the sheds’ open area, the required solids recirculation rate could not be maintained. Using various signal analysis techniques and wavelet filtering, pressure and radiation measurements can provide advanced warning that fouling is approaching critical conditions, as early as 89% and 86% of the critical fouling level, respectively.","abstract_has_math":false,"creators":["McIllwraith, William"],"institution":"The University of Western Ontario","degree_name":"M Eng Sci","degree_level":null,"degree_discipline":"Chemical and Biochemical Engineering","degree_department":null,"school":null,"contributors":[],"advisors":["Briens, Cedric","Pjontek, Dominic"],"committee_chairs":[],"committee_members":[],"year":2026,"date_issued":"2026-03-12","date_published":"2026-03-12","updated_at":"2026-07-27T21:56:01Z","subjects":["Recirculating Fluidized Bed","Fluid Coker","Stripper","Sheds","Fouling"],"languages":["en"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/20.500.14721/39596","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Briens, Cedric","Pjontek, Dominic"]},{"key":"dc:creator","label":"Author","values":["McIllwraith, William"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2026-04-29T16:08:23Z"]},{"key":"dc:date.issued","label":"Date","values":["2026-03-12"]},{"key":"dc:publisher","label":"Institution","values":["The University of Western Ontario"]},{"key":"dc:type","label":"Dc Type","values":["thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Chemical and Biochemical Engineering"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M Eng Sci"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["The University of Western Ontario"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Recirculating Fluidized Bed","Fluid Coker","Stripper","Sheds","Fouling"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/20.500.14721/39596"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["This thesis is under embargo until April 25, 2028."]},{"key":"dc:description.abstract","label":"Abstract","values":["Fouling of the stripper sheds in fluid and flexi-cokers restricts solids recirculation, leading to flooding and a unit shutdown. This thesis develops non-intrusive methods to detect fouling growth and provide advanced warning before critical operating limits are reached. Experiments were performed in a geometrically scaled fluid coker using physical obstructions to mimic shed fouling. Differential pressure, radiation transmission, and heat transfer measurements were performed above the sheds to assess the effects of fouling. Each measurement technique can detect the changes in hydrodynamics from adding an obstruction to clean stripper sheds. When fouling obstructed 83% of the sheds’ open area, the required solids recirculation rate could not be maintained. Using various signal analysis techniques and wavelet filtering, pressure and radiation measurements can provide advanced warning that fouling is approaching critical conditions, as early as 89% and 86% of the critical fouling level, respectively."]},{"key":"dc:title","label":"Title","values":["Development of Measurement Methods for Monitoring the Effects of Shed Fouling in a Fluid Coker Stripper"]}]}],"canonical_facts":{"dc:contributor.advisor":["Briens, Cedric","Pjontek, Dominic"],"dc:creator":["McIllwraith, William"],"dc:date.accessioned":["2026-04-29T16:08:23Z"],"dc:date.issued":["2026-03-12"],"dc:description":["This thesis is under embargo until April 25, 2028."],"dc:description.abstract":["Fouling of the stripper sheds in fluid and flexi-cokers restricts solids recirculation, leading to flooding and a unit shutdown. This thesis develops non-intrusive methods to detect fouling growth and provide advanced warning before critical operating limits are reached. Experiments were performed in a geometrically scaled fluid coker using physical obstructions to mimic shed fouling. Differential pressure, radiation transmission, and heat transfer measurements were performed above the sheds to assess the effects of fouling. Each measurement technique can detect the changes in hydrodynamics from adding an obstruction to clean stripper sheds. When fouling obstructed 83% of the sheds’ open area, the required solids recirculation rate could not be maintained. Using various signal analysis techniques and wavelet filtering, pressure and radiation measurements can provide advanced warning that fouling is approaching critical conditions, as early as 89% and 86% of the critical fouling level, respectively."],"dc:identifier.uri":["https://hdl.handle.net/20.500.14721/39596"],"dc:language.iso":["en"],"dc:publisher":["The University of Western Ontario"],"dc:subject":["Recirculating Fluidized Bed","Fluid Coker","Stripper","Sheds","Fouling"],"dc:title":["Development of Measurement Methods for Monitoring the Effects of Shed Fouling in a Fluid Coker Stripper"],"dc:type":["thesis"],"thesis:degree_discipline":["Chemical and Biochemical Engineering"],"thesis:degree_name":["M Eng Sci"],"thesis:institution_name":["The University of Western Ontario"]},"updated_at":"2026-07-27T21:56:01Z"}