{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/117727"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/117727","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"CHEETA aircraft sizing, performance, and sensitivity","abstract":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-04-12 without embargo terms","abstract_html":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-04-12 without embargo terms","abstract_has_math":false,"creators":["Waddington, Elias"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Aerospace Engineering","degree_department":null,"school":null,"contributors":["Merret, Jason M"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2022,"date_issued":"2022-12","date_published":"2022-12","updated_at":"2026-07-22T22:24:56Z","subjects":["Sustainable","Sustainability","Aviation","Aircraft","Design","Aircraft Design","Hydrogen","Fuel Cell","Hydrogen Fuel Cell"],"languages":["en","eng"],"rights":["Copyright 2022 Elias Waddington"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/117727","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Merret, Jason M"]},{"key":"dc:creator","label":"Author","values":["Waddington, Elias"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2022-12","2022-12-05"]},{"key":"dc:type","label":"Dc Type","values":["text","Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Aerospace Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Sustainable","Sustainability","Aviation","Aircraft","Design","Aircraft Design","Hydrogen","Fuel Cell","Hydrogen Fuel Cell"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en","eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2022 Elias Waddington"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/117727"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-04-12 without embargo terms","The student, Elias Waddington, accepted the attached license on 2022-11-29 at 09:39.","The student, Elias Waddington, submitted this Thesis for approval on 2022-11-29 at 10:11.","This Thesis was approved for publication on 2022-12-05 at 17:04.","DSpace SAF Submission Ingestion Package generated from Vireo submission #18500 on 2023-04-12 at 07:23:40","This thesis presents an overview of the Center for High-Efficiency Electrical Technologies for Aircraft (CHEETA) aircraft design process. The goal of the center was to evaluate liquid hydrogen technology on an electric aircraft concept that utilized liquid hydrogen fuel cells to electrify flight with zero greenhouse gas emissions at the vehicle level. Doing so informs the organization what technologies must be developed to accomplish the goal of zero-emission aviation by 2050. To do so, various estimation methods for weight, aerodynamics, fuel cells, propulsors, and performance are documented. These estimation methods are integrated to a combined performance-sizing methodology. This script uses the estimates produced to create a series of carpet plots that demonstrate the impact of fuel cell size, heat exchanger area, and wing aspect ratio and area to the maximum take-off weight and fuel consumption of the CHEETA aircraft. These carpet plots are used to observe the sensitivity of the system as well as make design decisions for solid oxide and proton exchange membrane fuel cells. A ducted heat exchanger concept that utilizes waste heat to produce thrust was also incorporated and its contributions to the aircraft configuration are presented. The impact of fuel cell degradation to the lifetime performance of the aircraft was also studied, and a strategy for mitigating the performance loss is presented. The combination of all these effects is shown on a payload-range diagram, comparing the aircraft performance to a representative contemporary, incumbent, hydrocarbon-fuelled aircraft."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["CHEETA aircraft sizing, performance, and sensitivity"]}]}],"canonical_facts":{"dc:contributor":["Merret, Jason M"],"dc:creator":["Waddington, Elias"],"dc:date":["2022-12","2022-12-05"],"dc:description":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-04-12 without embargo terms","The student, Elias Waddington, accepted the attached license on 2022-11-29 at 09:39.","The student, Elias Waddington, submitted this Thesis for approval on 2022-11-29 at 10:11.","This Thesis was approved for publication on 2022-12-05 at 17:04.","DSpace SAF Submission Ingestion Package generated from Vireo submission #18500 on 2023-04-12 at 07:23:40","This thesis presents an overview of the Center for High-Efficiency Electrical Technologies for Aircraft (CHEETA) aircraft design process. The goal of the center was to evaluate liquid hydrogen technology on an electric aircraft concept that utilized liquid hydrogen fuel cells to electrify flight with zero greenhouse gas emissions at the vehicle level. Doing so informs the organization what technologies must be developed to accomplish the goal of zero-emission aviation by 2050. To do so, various estimation methods for weight, aerodynamics, fuel cells, propulsors, and performance are documented. These estimation methods are integrated to a combined performance-sizing methodology. This script uses the estimates produced to create a series of carpet plots that demonstrate the impact of fuel cell size, heat exchanger area, and wing aspect ratio and area to the maximum take-off weight and fuel consumption of the CHEETA aircraft. These carpet plots are used to observe the sensitivity of the system as well as make design decisions for solid oxide and proton exchange membrane fuel cells. A ducted heat exchanger concept that utilizes waste heat to produce thrust was also incorporated and its contributions to the aircraft configuration are presented. The impact of fuel cell degradation to the lifetime performance of the aircraft was also studied, and a strategy for mitigating the performance loss is presented. The combination of all these effects is shown on a payload-range diagram, comparing the aircraft performance to a representative contemporary, incumbent, hydrocarbon-fuelled aircraft."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/117727"],"dc:language":["en","eng"],"dc:rights":["Copyright 2022 Elias Waddington"],"dc:subject":["Sustainable","Sustainability","Aviation","Aircraft","Design","Aircraft Design","Hydrogen","Fuel Cell","Hydrogen Fuel Cell"],"dc:title":["CHEETA aircraft sizing, performance, and sensitivity"],"dc:type":["text","Thesis"],"thesis:degree_discipline":["Aerospace Engineering"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:24:56Z"}