Khaled Alsamri, Jessica De la Cruz, Melody Emmanouilidi, Jacqueline Huynh, Jack Brouwer
{"title":"Methodology for Assessing Retrofitted Hydrogen Combustion and Fuel Cell Aircraft Environmental Impacts","authors":"Khaled Alsamri, Jessica De la Cruz, Melody Emmanouilidi, Jacqueline Huynh, Jack Brouwer","doi":"10.2514/1.b39405","DOIUrl":"https://doi.org/10.2514/1.b39405","url":null,"abstract":"<p>Hydrogen (<span><math altimg=\"eq-00001.gif\" display=\"inline\" overflow=\"scroll\"><mrow><msub><mi mathvariant=\"normal\">H</mi><mn>2</mn></msub></mrow></math></span><span></span>) combustion and solid oxide fuel cells (SOFCs) can potentially reduce aviation-produced greenhouse gas emissions compared to kerosene propulsion. This paper outlines a methodology for evaluating performance and emission tradeoffs when retrofitting conventional kerosene-powered aircraft with lower-emission <span><math altimg=\"eq-00002.gif\" display=\"inline\" overflow=\"scroll\"><mrow><msub><mi mathvariant=\"normal\">H</mi><mn>2</mn></msub></mrow></math></span><span></span> combustion and SOFC hybrid alternatives. The proposed framework presents a constant-range approach for designing liquid hydrogen fuel tanks, considering insulation, sizing, center of gravity, and power constraints. A lifecycle assessment evaluates greenhouse gas emissions and contrail formation effects for carbon footprint mitigation, while a cost analysis examines retrofit implementation consequences. A Cessna Citation 560XLS+ case study shows a 5% mass decrease for <span><math altimg=\"eq-00003.gif\" display=\"inline\" overflow=\"scroll\"><mrow><msub><mi mathvariant=\"normal\">H</mi><mn>2</mn></msub></mrow></math></span><span></span> combustion and a 0.4% mass decrease for the SOFC hybrid, at the tradeoff of removing three passengers. The lifecycle analysis of green hydrogen in aviation reveals a significant reduction in <span><math altimg=\"eq-00004.gif\" display=\"inline\" overflow=\"scroll\"><mrow><msub><mi>CO</mi><mn>2</mn></msub></mrow></math></span><span></span> emissions for <span><math altimg=\"eq-00005.gif\" display=\"inline\" overflow=\"scroll\"><mrow><msub><mi mathvariant=\"normal\">H</mi><mn>2</mn></msub></mrow></math></span><span></span> combustion and SOFC systems, except for natural-gas-produced <span><math altimg=\"eq-00006.gif\" display=\"inline\" overflow=\"scroll\"><mrow><msub><mi mathvariant=\"normal\">H</mi><mn>2</mn></msub></mrow></math></span><span></span> combustion, when compared to Jet-A fuel. However, this environmental benefit is contrasted by an increase in fuel cost per passenger-km for green <span><math altimg=\"eq-00007.gif\" display=\"inline\" overflow=\"scroll\"><mrow><msub><mi mathvariant=\"normal\">H</mi><mn>2</mn></msub></mrow></math></span><span></span> combustion and a rise for natural-gas-produced <span><math altimg=\"eq-00008.gif\" display=\"inline\" overflow=\"scroll\"><mrow><msub><mi mathvariant=\"normal\">H</mi><mn>2</mn></msub></mrow></math></span><span></span> SOFC compared to kerosene. The results suggest that retrofitting aircraft with alternative fuels could lower carbon emissions, noting the economic and passenger capacity tradeoffs.</p>","PeriodicalId":16903,"journal":{"name":"Journal of Propulsion and Power","volume":"49 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140567833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Soma Tauchi, Chihiro Inoue, Zhenying Wang, Yu Daimon, Go Fujii
{"title":"Optimal Liquid Engine Architecture by Performance-Cooling Tradeoff Analysis","authors":"Soma Tauchi, Chihiro Inoue, Zhenying Wang, Yu Daimon, Go Fujii","doi":"10.2514/1.b39409","DOIUrl":"https://doi.org/10.2514/1.b39409","url":null,"abstract":"Journal of Propulsion and Power, Ahead of Print. <br/>","PeriodicalId":16903,"journal":{"name":"Journal of Propulsion and Power","volume":"9 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140204762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Guillaume Pelletier, Marc Ferrier, Axel Vincent-Randonnier, Dominique Scherrer, Arnaud Mura
{"title":"Delayed Detached-Eddy Simulations of Rough-Wall Turbulent Reactive Flows in a Supersonic Combustor","authors":"Guillaume Pelletier, Marc Ferrier, Axel Vincent-Randonnier, Dominique Scherrer, Arnaud Mura","doi":"10.2514/1.b39316","DOIUrl":"https://doi.org/10.2514/1.b39316","url":null,"abstract":"Journal of Propulsion and Power, Ahead of Print. <br/>","PeriodicalId":16903,"journal":{"name":"Journal of Propulsion and Power","volume":"51 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140166619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Inlet Guide Vane Stagger Effects on Multistage Compressor Performance and Stall Inception","authors":"Amanda N. Beach, Joseph C. Brown, Nicole L. Key","doi":"10.2514/1.b39247","DOIUrl":"https://doi.org/10.2514/1.b39247","url":null,"abstract":"Journal of Propulsion and Power, Ahead of Print. <br/>","PeriodicalId":16903,"journal":{"name":"Journal of Propulsion and Power","volume":"18 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140106964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jie Shi, Li Zhou, Jianyu Xu, Jingwei Shi, Zhanxue Wang
{"title":"Experimental Study on Infrared Radiation Characteristics and Matching Performance of Low-Observable Nozzles","authors":"Jie Shi, Li Zhou, Jianyu Xu, Jingwei Shi, Zhanxue Wang","doi":"10.2514/1.b38879","DOIUrl":"https://doi.org/10.2514/1.b38879","url":null,"abstract":"Journal of Propulsion and Power, Ahead of Print. <br/>","PeriodicalId":16903,"journal":{"name":"Journal of Propulsion and Power","volume":"115 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140106962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Harrison Autry, Bradley Gobin, Ryan Marks, Gregory Young, Afrida Anis, Prithwish Biswas, Keren Shi, Yujie Wang, Michael R. Zachariah
{"title":"Impact of Ammonium Perchlorate Content on Electrically Controlled Gel Polymer Electrolyte Monopropellants","authors":"Harrison Autry, Bradley Gobin, Ryan Marks, Gregory Young, Afrida Anis, Prithwish Biswas, Keren Shi, Yujie Wang, Michael R. Zachariah","doi":"10.2514/1.b39250","DOIUrl":"https://doi.org/10.2514/1.b39250","url":null,"abstract":"Journal of Propulsion and Power, Ahead of Print. <br/>","PeriodicalId":16903,"journal":{"name":"Journal of Propulsion and Power","volume":"174 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140032874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ethan J. Schlussel, Dominic F. Gallegos, Gregory Young
{"title":"Supersonic Combustion of Solid Fuels","authors":"Ethan J. Schlussel, Dominic F. Gallegos, Gregory Young","doi":"10.2514/1.b39325","DOIUrl":"https://doi.org/10.2514/1.b39325","url":null,"abstract":"Journal of Propulsion and Power, Ahead of Print. <br/>","PeriodicalId":16903,"journal":{"name":"Journal of Propulsion and Power","volume":"40 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140032998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Fundamental Experiment and Numerical Simulation of Ne/Xe Plasma Magnetohydrodynamic Electrical Power Generation","authors":"Kimsor Ork, Ryu Masuda, Yoshihiro Okuno","doi":"10.2514/1.b39352","DOIUrl":"https://doi.org/10.2514/1.b39352","url":null,"abstract":"Journal of Propulsion and Power, Ahead of Print. <br/>","PeriodicalId":16903,"journal":{"name":"Journal of Propulsion and Power","volume":"39 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140032880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Endoscopic Endonasal Resection of a Cavernous Malformation of the Third Ventricle: Case Report and Literature Review.","authors":"Sarah Bin Abdulqader, Gmaan Alzhrani","doi":"10.1055/s-0041-1741070","DOIUrl":"10.1055/s-0041-1741070","url":null,"abstract":"<p><strong>Background: </strong> Suprasellar and third ventricle cavernous malformations (CMs) are uncommon. Conventional approaches such as interhemispheric and translamina terminalis approaches are often used to resect these lesions. Here we demonstrate the use of the endoscopic endonasal approach for a third ventricle CM.</p><p><strong>Case description: </strong> A 31-year-old man presented with progressive symptoms of headache and visual disturbance as well as short-term memory deficit over a 6-month period. Neurologic examination revealed bitemporal hemianopsia. Radiologic images showed a suprasellar lesion extending into the third ventricle as well as obstructive hydrocephalus. The patient was operated on using an endoscopic endonasal approach and histopathology revealed a diagnosis of CM. Transient diabetes insipidus and adrenal insufficiency were reported postoperatively.</p><p><strong>Conclusion: </strong> This report demonstrates safe resection of a third ventricle CM via the endonasal route.</p>","PeriodicalId":16903,"journal":{"name":"Journal of Propulsion and Power","volume":"9 1","pages":"221-226"},"PeriodicalIF":1.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90975903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Liquid Atomization in Rotary Slinger Injectors: Role of Liquid Delivery Manifold","authors":"Arnab Chakraborty, Anuj Kumar, Srikrishna Sahu, Dalton Maurya","doi":"10.2514/1.b39217","DOIUrl":"https://doi.org/10.2514/1.b39217","url":null,"abstract":"Journal of Propulsion and Power, Ahead of Print. <br/>","PeriodicalId":16903,"journal":{"name":"Journal of Propulsion and Power","volume":"250 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140008230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}