{"id":16871,"date":"2024-05-16T12:30:26","date_gmt":"2024-05-16T12:30:26","guid":{"rendered":"https:\/\/aerospacerepository.org\/?p=16871"},"modified":"2025-09-15T13:43:26","modified_gmt":"2025-09-15T13:43:26","slug":"a-contribution-to-mitigate-nox-and-h2o-emissions-for-a-hydrogen-powered-hypersonic-vehicle","status":"publish","type":"post","link":"https:\/\/aerospacerepository.org\/index.php\/2024\/05\/16\/a-contribution-to-mitigate-nox-and-h2o-emissions-for-a-hydrogen-powered-hypersonic-vehicle\/","title":{"rendered":"A Contribution to Mitigate NOx and H2O Emissions for a Hydrogen-powered Hypersonic Vehicle"},"content":{"rendered":"\n<p><strong>Daniel BODMER, Jacob J\u00c4SCHKE, Florian LINKE, Volker GOLLNICK<\/strong><\/p>\n\n\n\n<p><strong>DOI Number: N\/A<\/strong><\/p>\n\n\n\n<p><strong>Conference number: HiSST-2024-116<\/strong><\/p>\n\n\n\n<p>In atmospheric physics, the impact of gaseous engine emissions on climate is quantified using complex 3D simulations, which are computationally intensive and consequently require a long simulation time. Since climate impact depends on the time and locus of an emission, especially with respect to the non-CO2 effects such as NOx emissions, climate-optimized flight trajectories might be higher (or lower) than emission-optimized flight trajectories. This paper aims to present a methodology for deriving the minimum nitrogen oxide (NOx) or water vapor (H2O) trajectory of hydrogen-powered hypersonic aircraft taking into account realistic operational constraints such as tolerable passenger loads as well as the sonic-boom carpet propagation. The methodology is demonstrated using the civil Mach 8 waverider reference configuration STRATOFLY-MR3, which yields significant mitigation potential for both NOx and H2O emissions along the aircraft&#8217;s 4D-trajectory by varying the cruise flight altitude. The obtained results can be used as a simplified metric for climate impact predictions at stratospheric altitudes and are expressed as relative changes with respect to the aircraft&#8217;s design criteria defined in the H2020 project STRATOFLY. Results are presented for a global fleet of 200 MR3 aircraft operating 360 days per year on the design route from Brussels to Sydney. As a scientific contribution, emission inventories for the optimized mission scenario will be produced and made publicly available.<\/p>\n\n\n\n<p><a href=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2024\/05\/HiSST-2024-116.pdf\">Read the full paper here<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Daniel BODMER, Jacob J\u00c4SCHKE, Florian LINKE, Volker GOLLNICK<\/b><\/p>\n<p>DOI Number: N\/A<\/p>\n<p>Conference number: HiSST-2024-116<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[993,1407,1413],"tags":[1598,1600,1597,1599],"class_list":["post-16871","post","type-post","status-publish","format-standard","hentry","category-events","category-11-hisst-2024","category-operations-and-environment-11-hisst-2024","tag-4d-trajectories","tag-emission-inventories","tag-emission-mitigation-potential","tag-hypersonic-transport","category-993","category-1407","category-1413","description-off"],"_links":{"self":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/16871","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/comments?post=16871"}],"version-history":[{"count":2,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/16871\/revisions"}],"predecessor-version":[{"id":20930,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/16871\/revisions\/20930"}],"wp:attachment":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/media?parent=16871"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/categories?post=16871"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/tags?post=16871"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}