\"Flare systems provide a safe, efficient, and reliable way to treat unwanted flammable gases that come from relief devices of various chemical processing equipment to ensure the safety of personnel and equipment. Flare systems are classified according to the assist media type as non-assisted (utility), steam-, air-, and pressure-assisted flares. The assist medium enhances mixing between flare gases and surrounding air and induces more air into the combustion zone. An air-assisted flare system is the preferred flare type in regions where steam is unavailable or is costly to supply or ambient temperatures are too low. The environmental protection agency (EPA) considers flares to be a source of emissions with many harmful gases such as unburned waste gases, carbon monoxide, and soot, among others, if their combustion efficiency falls below 96.5%. Low flowrates of waste gases (purge flow conditions) results in flares with combustion efficiency less than 96.5%. During normal operating conditions, these flares process much lower flows of flare gas than they are optimally designed to process. This cause insufficient mixing energy to efficiently mix the flare gas with ambient air. To enhance mixing at these low flow rate conditions without using auxiliary purge fuel or additional assistant medium, a new flare tip design was developed based on previous work done at the John Zink Company in 2002-2003. The work presented in this dissertation documents this flare tip design, its performance assessment under different flow conditions and concludes with recommendations for future work\"--Abstract, p. iv
","abstract_html":"<p>"Flare systems provide a safe, efficient, and reliable way to treat unwanted flammable gases that come from relief devices of various chemical processing equipment to ensure the safety of personnel and equipment. Flare systems are classified according to the assist media type as non-assisted (utility), steam-, air-, and pressure-assisted flares. The assist medium enhances mixing between flare gases and surrounding air and induces more air into the combustion zone. An air-assisted flare system is the preferred flare type in regions where steam is unavailable or is costly to supply or ambient temperatures are too low. The environmental protection agency (EPA) considers flares to be a source of emissions with many harmful gases such as unburned waste gases, carbon monoxide, and soot, among others, if their combustion efficiency falls below 96.5%. Low flowrates of waste gases (purge flow conditions) results in flares with combustion efficiency less than 96.5%. During normal operating conditions, these flares process much lower flows of flare gas than they are optimally designed to process. This cause insufficient mixing energy to efficiently mix the flare gas with ambient air. To enhance mixing at these low flow rate conditions without using auxiliary purge fuel or additional assistant medium, a new flare tip design was developed based on previous work done at the John Zink Company in 2002-2003. The work presented in this dissertation documents this flare tip design, its performance assessment under different flow conditions and concludes with recommendations for future work"--Abstract, p. iv</p>","abstract_has_math":false,"creators":["Alhameedi, Hayder"],"institution":"Missouri University of Science and Technology","degree_name":"Ph. D. in Chemical Engineering","degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":null,"date_issued":"","date_published":null,"updated_at":"2026-07-24T03:18:18Z","subjects":["air-assisted flare","combustion efficiency","computational fluid dynamcs","destraction removal efficiency","Chemical Engineering","Engineering"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://scholarsmine.mst.edu/doctoral_dissertations/3210","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Alhameedi, Hayder"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:type","label":"Dc Type","values":["Dissertation - Open Access"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph. D. in Chemical Engineering"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Missouri University of Science and Technology"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["air-assisted flare","combustion efficiency","computational fluid dynamcs","destraction removal efficiency","Chemical Engineering","Engineering"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://scholarsmine.mst.edu/doctoral_dissertations/3210"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["\"Flare systems provide a safe, efficient, and reliable way to treat unwanted flammable gases that come from relief devices of various chemical processing equipment to ensure the safety of personnel and equipment. Flare systems are classified according to the assist media type as non-assisted (utility), steam-, air-, and pressure-assisted flares. The assist medium enhances mixing between flare gases and surrounding air and induces more air into the combustion zone. An air-assisted flare system is the preferred flare type in regions where steam is unavailable or is costly to supply or ambient temperatures are too low. The environmental protection agency (EPA) considers flares to be a source of emissions with many harmful gases such as unburned waste gases, carbon monoxide, and soot, among others, if their combustion efficiency falls below 96.5%. Low flowrates of waste gases (purge flow conditions) results in flares with combustion efficiency less than 96.5%. During normal operating conditions, these flares process much lower flows of flare gas than they are optimally designed to process. This cause insufficient mixing energy to efficiently mix the flare gas with ambient air. To enhance mixing at these low flow rate conditions without using auxiliary purge fuel or additional assistant medium, a new flare tip design was developed based on previous work done at the John Zink Company in 2002-2003. The work presented in this dissertation documents this flare tip design, its performance assessment under different flow conditions and concludes with recommendations for future work\"--Abstract, p. iv
"]},{"key":"dc:title","label":"Title","values":["DEVELOPMENT AND TESTING OF A NEW AIR-ASSISTED FLARE SYSTEM FOR LOW FLOW CONDITIONS"]}]}],"canonical_facts":{"dc:creator":["Alhameedi, Hayder"],"dc:description.abstract":["\"Flare systems provide a safe, efficient, and reliable way to treat unwanted flammable gases that come from relief devices of various chemical processing equipment to ensure the safety of personnel and equipment. Flare systems are classified according to the assist media type as non-assisted (utility), steam-, air-, and pressure-assisted flares. The assist medium enhances mixing between flare gases and surrounding air and induces more air into the combustion zone. An air-assisted flare system is the preferred flare type in regions where steam is unavailable or is costly to supply or ambient temperatures are too low. The environmental protection agency (EPA) considers flares to be a source of emissions with many harmful gases such as unburned waste gases, carbon monoxide, and soot, among others, if their combustion efficiency falls below 96.5%. Low flowrates of waste gases (purge flow conditions) results in flares with combustion efficiency less than 96.5%. During normal operating conditions, these flares process much lower flows of flare gas than they are optimally designed to process. This cause insufficient mixing energy to efficiently mix the flare gas with ambient air. To enhance mixing at these low flow rate conditions without using auxiliary purge fuel or additional assistant medium, a new flare tip design was developed based on previous work done at the John Zink Company in 2002-2003. The work presented in this dissertation documents this flare tip design, its performance assessment under different flow conditions and concludes with recommendations for future work\"--Abstract, p. iv
"],"dc:identifier":["https://scholarsmine.mst.edu/doctoral_dissertations/3210"],"dc:subject":["air-assisted flare","combustion efficiency","computational fluid dynamcs","destraction removal efficiency","Chemical Engineering","Engineering"],"dc:title":["DEVELOPMENT AND TESTING OF A NEW AIR-ASSISTED FLARE SYSTEM FOR LOW FLOW CONDITIONS"],"dc:type":["Dissertation - Open Access"],"thesis:degree_name":["Ph. D. in Chemical Engineering"],"thesis:institution_name":["Missouri University of Science and Technology"]},"updated_at":"2026-07-24T03:18:18Z"}