{"id":{"repo_id":"mit","oai_identifier":"oai:dspace.mit.edu:1721.1/151898"},"canonical_url":"https://search.dev.ndltd.org/etd/mit/oai:dspace.mit.edu:1721.1/151898","repository":{"repo_id":"mit","name":"MIT","base_url":"https://dspace.mit.edu/oai/request"},"display":{"title":"Laser-Induced Particle Impact Testing in High-Pressure Oxygen Environments","abstract":"Particle impact ignition is an important source of metal fires in the high-pressure oxygen environments found in the turbines of oxygen-rich turbopumps. Understanding of particle impact ignition has been hindered by experimental challenges in reproducing this phenomenon under controlled laboratory conditions. This study addresses these challenges through the development of a specialized particle impact rig that integrates laser-induced particle impact testing (LIPIT) into an oxygen-compatible pressure vessel, thus enabling precise control over environmental conditions (target temperature, oxygen pressure) as well as impact variables (particle size/shape, impact velocity). This thesis describes the design of the oxygen-compatible pressure vessel, emphasizing considerations such as stress analysis, materials selection, oxygen-compatibility, and integration with the LIPIT system. The thesis concludes with pathfinding experiments successfully demonstrating particle ignition in a prototype rig, providing in situ images of single particle ignition events using application-relevant materials and particle sizes. Future work will use this rig to characterize the effects of operating conditions and material choices on susceptibility to particle impact ignition with a view toward developing more durable oxygen-compatible hardware for next-generation staged combustion rocket engines.","abstract_html":"Particle impact ignition is an important source of metal fires in the high-pressure oxygen environments found in the turbines of oxygen-rich turbopumps. Understanding of particle impact ignition has been hindered by experimental challenges in reproducing this phenomenon under controlled laboratory conditions. This study addresses these challenges through the development of a specialized particle impact rig that integrates laser-induced particle impact testing (LIPIT) into an oxygen-compatible pressure vessel, thus enabling precise control over environmental conditions (target temperature, oxygen pressure) as well as impact variables (particle size/shape, impact velocity). This thesis describes the design of the oxygen-compatible pressure vessel, emphasizing considerations such as stress analysis, materials selection, oxygen-compatibility, and integration with the LIPIT system. The thesis concludes with pathfinding experiments successfully demonstrating particle ignition in a prototype rig, providing in situ images of single particle ignition events using application-relevant materials and particle sizes. Future work will use this rig to characterize the effects of operating conditions and material choices on susceptibility to particle impact ignition with a view toward developing more durable oxygen-compatible hardware for next-generation staged combustion rocket engines.","abstract_has_math":false,"creators":["Alyassini, Samair"],"institution":"Massachusetts Institute of Technology","degree_name":"Master","degree_level":null,"degree_discipline":null,"degree_department":"Massachusetts Institute of Technology. Department of Mechanical Engineering","school":null,"contributors":[],"advisors":["Cordero, Zachary"],"committee_chairs":[],"committee_members":[],"year":2023,"date_issued":"2023-06","date_published":"2023-06","updated_at":"2026-07-22T22:20:44Z","subjects":[],"languages":[],"rights":["In Copyright - Educational Use Permitted","Copyright retained by author(s)"],"rights_urls":["https://rightsstatements.org/page/InC-EDU/1.0/"],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/1721.1/151898","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Cordero, Zachary"]},{"key":"dc:contributor.department","label":"Department","values":["Massachusetts Institute of Technology. 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Understanding of particle impact ignition has been hindered by experimental challenges in reproducing this phenomenon under controlled laboratory conditions. This study addresses these challenges through the development of a specialized particle impact rig that integrates laser-induced particle impact testing (LIPIT) into an oxygen-compatible pressure vessel, thus enabling precise control over environmental conditions (target temperature, oxygen pressure) as well as impact variables (particle size/shape, impact velocity). This thesis describes the design of the oxygen-compatible pressure vessel, emphasizing considerations such as stress analysis, materials selection, oxygen-compatibility, and integration with the LIPIT system. The thesis concludes with pathfinding experiments successfully demonstrating particle ignition in a prototype rig, providing in situ images of single particle ignition events using application-relevant materials and particle sizes. Future work will use this rig to characterize the effects of operating conditions and material choices on susceptibility to particle impact ignition with a view toward developing more durable oxygen-compatible hardware for next-generation staged combustion rocket engines."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["S.M."]},{"key":"dc:title","label":"Title","values":["Laser-Induced Particle Impact Testing in High-Pressure Oxygen Environments"]}]}],"canonical_facts":{"dc:contributor.advisor":["Cordero, Zachary"],"dc:contributor.department":["Massachusetts Institute of Technology. Department of Mechanical Engineering"],"dc:creator":["Alyassini, Samair"],"dc:date.accessioned":["2023-08-23T16:17:31Z"],"dc:date.available":["2023-08-23T16:17:31Z"],"dc:date.issued":["2023-06"],"dc:description.abstract":["Particle impact ignition is an important source of metal fires in the high-pressure oxygen environments found in the turbines of oxygen-rich turbopumps. Understanding of particle impact ignition has been hindered by experimental challenges in reproducing this phenomenon under controlled laboratory conditions. This study addresses these challenges through the development of a specialized particle impact rig that integrates laser-induced particle impact testing (LIPIT) into an oxygen-compatible pressure vessel, thus enabling precise control over environmental conditions (target temperature, oxygen pressure) as well as impact variables (particle size/shape, impact velocity). This thesis describes the design of the oxygen-compatible pressure vessel, emphasizing considerations such as stress analysis, materials selection, oxygen-compatibility, and integration with the LIPIT system. The thesis concludes with pathfinding experiments successfully demonstrating particle ignition in a prototype rig, providing in situ images of single particle ignition events using application-relevant materials and particle sizes. Future work will use this rig to characterize the effects of operating conditions and material choices on susceptibility to particle impact ignition with a view toward developing more durable oxygen-compatible hardware for next-generation staged combustion rocket engines."],"dc:description.degree":["S.M."],"dc:identifier.uri":["https://hdl.handle.net/1721.1/151898"],"dc:publisher":["Massachusetts Institute of Technology"],"dc:rights":["In Copyright - Educational Use Permitted","Copyright retained by author(s)"],"dc:rights.uri":["https://rightsstatements.org/page/InC-EDU/1.0/"],"dc:title":["Laser-Induced Particle Impact Testing in High-Pressure Oxygen Environments"],"dc:type":["Thesis"],"thesis:degree_name":["Master","Master of Science in Mechanical Engineering"]},"updated_at":"2026-07-22T22:20:44Z"}