{"id":9311,"date":"2022-01-28T09:13:53","date_gmt":"2022-01-28T12:13:53","guid":{"rendered":"https:\/\/www.fie.undef.edu.ar\/ceptm\/?p=9311"},"modified":"2022-01-28T09:13:53","modified_gmt":"2022-01-28T12:13:53","slug":"efecto-de-aditivos-en-un-ramjet-hibrido-marino-de-empleo-subacuatico","status":"publish","type":"post","link":"https:\/\/www.fie.undef.edu.ar\/ceptm\/?p=9311","title":{"rendered":"Efecto de aditivos en un Ramjet H\u00edbrido marino de empleo subacu\u00e1tico"},"content":{"rendered":"<p><span lang=\"ES\">Una alternativa para propulsar veh\u00edculos submarinos a altas velocidades (del orden de los 200 nudos es decir aprox. 100 m\/s) es la utilizaci\u00f3n de ramjets. La investigaci\u00f3n del documento adjunto se centra en la evaluaci\u00f3n te\u00f3rica y experimental del rendimiento de un propulsante h\u00edbrido metalizado en un ramjet subacu\u00e1tico. Las part\u00edculas de aluminio y \/ o magnesio agregadas a un grano de combustible polim\u00e9rico (poli\u00e9ster) son hidrorreactivas, utilizando el agua circundante como oxidante, adem\u00e1s de una fuente de gas. Te\u00f3ricamente, los aditivos met\u00e1licos aumentan significativamente el impulso espec\u00edfico del motor, y a medida que aumenta el porcentaje del ingrediente hidrorreactivo, el rendimiento te\u00f3rico tambi\u00e9n aumenta. Adem\u00e1s, el aluminio es m\u00e1s energ\u00e9tico que el magnesio. Sin embargo, se descubri\u00f3 experimentalmente que la adici\u00f3n de aluminio m\u00e1s all\u00e1 del 20% result\u00f3 en una formaci\u00f3n de escoria y no aument\u00f3 el impulso espec\u00edfico. La adici\u00f3n del 30% de magnesio fue relativamente favorable al aluminio debido a su mejor reactividad, lo que permiti\u00f3 el logro de un impulso espec\u00edfico real de hasta 485 s en condiciones est\u00e1ndar, aproximadamente el doble del rendimiento de los cohetes s\u00f3lidos comunes.<\/span><\/p>\n<hr \/>\n<p>This research focuses on theoretically and experimentally evaluating the performance of a metallized hybrid-propellant, water-breathing ramjet. The aluminum and\/or magnesium particles added to a polymeric (polyester) fuel grain are hydro-reactive, using the surrounding water as an oxidizer, in addition to a source of gas. Theoretically, the metal additives significantly increase the specific impulse of the motor, and as the percentage of the hydro-reactive ingredient increases, the theoretical performance increases as well. Additionally, aluminum is more energetic than magnesium. However, it was experimentally discovered that the addition of aluminum beyond 20% resulted in a slag formation and did not increase the specific impulse. Adding 30% of magnesium was relatively favorable to aluminum due to its better reactivity, enabling the achievement of an actual specific impulse of up to 485 s at standard conditions, approximately double the performance of common solid rockets.<\/p>\n<p><a href=\"https:\/\/www.mdpi.com\/2077-1312\/10\/2\/134\/pdf\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" class=\"aligncenter wp-image-5168\" src=\"https:\/\/www.fie.undef.edu.ar\/ceptm\/wp-content\/uploads\/2020\/02\/icono-PDF-1.png\" alt=\"Descargar archivo pdf\" width=\"75\" height=\"93\" srcset=\"https:\/\/www.fie.undef.edu.ar\/ceptm\/wp-content\/uploads\/2020\/02\/icono-PDF-1.png 310w, https:\/\/www.fie.undef.edu.ar\/ceptm\/wp-content\/uploads\/2020\/02\/icono-PDF-1-243x300.png 243w\" sizes=\"(max-width: 75px) 100vw, 75px\" \/><\/a><\/p>\n<p><strong>Fuente:<\/strong> <a href=\"https:\/\/www.mdpi.com\/2077-1312\/10\/2\/134\" target=\"_blank\" rel=\"noopener\"><em>https:\/\/www.mdpi.com<\/em><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Una alternativa para propulsar veh\u00edculos submarinos a altas velocidades (del orden de los 200 nudos es decir aprox. 100 m\/s) es la utilizaci\u00f3n de ramjets.&hellip; <\/p>\n","protected":false},"author":1,"featured_media":9312,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[24],"tags":[],"_links":{"self":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts\/9311"}],"collection":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9311"}],"version-history":[{"count":1,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts\/9311\/revisions"}],"predecessor-version":[{"id":9313,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts\/9311\/revisions\/9313"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/media\/9312"}],"wp:attachment":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9311"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9311"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9311"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}