{"id":16236,"date":"2024-04-12T13:03:41","date_gmt":"2024-04-12T13:03:41","guid":{"rendered":"https:\/\/aerospacerepository.org\/?p=16236"},"modified":"2024-04-12T13:03:41","modified_gmt":"2024-04-12T13:03:41","slug":"spectroscopic-characterization-of-solid-rocket-motor-plume-radiation","status":"publish","type":"post","link":"https:\/\/aerospacerepository.org\/index.php\/2024\/04\/12\/spectroscopic-characterization-of-solid-rocket-motor-plume-radiation\/","title":{"rendered":"Spectroscopic Characterization of Solid Rocket Motor Plume Radiation"},"content":{"rendered":"\n<p><strong>Lars Steffens, Ali G\u00fclhan<\/strong><\/p>\n\n\n\n<p><strong>DOI Number XXX-YYY-ZZZ<\/strong><\/p>\n\n\n\n<p><strong>Conference Number HiSST-2022-318<\/strong><\/p>\n\n\n\n<p>To gather information about both particle and gas phase temperatures inside a scaled solid rocket<br>motor plume UV-VIS emission spectroscopy (UVVIS) and infrared emission spectroscopy (FTIR) have<br>been used. Additionally, a position resolving two-color pyrometer technique in the visible spectrum<br>range (Alumina Emission Measurements, AEM) has been developed to obtain a particle temperature<br>distribution of the whole plume. These three methods have been applied during the ESA-EMAP project<br>tests inside DLR\u2019s VMK facility of scaled solid rocket motor plumes [1]. This project pursued activities<br>regarding the experimental modeling of alumina particulates in solid boosters (EMAP).<br>The UVVIS emission spectroscopy can be used to monitor the grey body radiation of the particle phase.<br>This allows determining the particle phase temperature. FTIR spectroscopy allows the identification of<br>gaseous species inside the plume such as CO2, CO, HCL and H2O. The emission lines of HCl can be used<br>to determine the gas phase temperature of the plume. Both methods thus monitor the radiation<br>intensity and the temperature over time at a certain position downstream the nozzle exit during the<br>propellant combustion process. The AEM consists of two optical cameras which have been equipped<br>with 10nm width optical bandpass filters to obtain intensity maps at two distinct wavelengths. The ratio<br>of these intensity maps can be evaluated into a temperature distribution of the plume.<\/p>\n\n\n\n<p><a href=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2023\/10\/HiSST-2022-318.pdf\" data-type=\"link\" data-id=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2023\/10\/HiSST-2022-318.pdf\">Read the full paper > <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Lars Steffens, Ali G\u00fclhan<\/b><\/p>\n<p>DOI Number XXX-YYY-ZZZ<\/p>\n<p>Conference Number HiSST-2022-318<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[993,1006,1014],"tags":[1202,1203,1201],"class_list":["post-16236","post","type-post","status-publish","format-standard","hentry","category-events","category-hisst-2022","category-testing-and-evaluation-hisst-2022","tag-emission-spectroscopy","tag-particles","tag-solid-rocket-motor-plume","category-993","category-1006","category-1014","description-off"],"_links":{"self":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/16236","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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/comments?post=16236"}],"version-history":[{"count":1,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/16236\/revisions"}],"predecessor-version":[{"id":16237,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/16236\/revisions\/16237"}],"wp:attachment":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/media?parent=16236"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/categories?post=16236"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/tags?post=16236"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}