{"id":1735,"date":"2014-12-07T12:59:34","date_gmt":"2014-12-07T12:59:34","guid":{"rendered":"http:\/\/www.jpyro.com\/wp\/?p=1735"},"modified":"2014-12-08T07:50:22","modified_gmt":"2014-12-08T07:50:22","slug":"quantification-of-visible-aerosols-from-pyrotechnics-the-effect-of-relative-humidity","status":"publish","type":"post","link":"http:\/\/www.jpyro.co.uk\/?p=1735","title":{"rendered":"Quantification of Visible Aerosols from Pyrotechnics: The Effect of Relative Humidity"},"content":{"rendered":"<p><strong>Rene Yo Abe, Yoshiaki Akutsu, Akihiro Shimada and Takehiro Matsunaga\u00a0<\/strong><\/p>\n<p><strong>Abstract:<\/strong> Light transmission and particle size distribution measurements of aerosol (smoke) emissions from pyrotechnic compositions have been performed in a combustion chamber at atmospheric pressure over a wide range of relative humidity. Maximum light extinction over time is proportional to weight of incinerated sample and shows a characteristic curve over relative humidity for each pyrolant. When critical relative humidity is exceeded, a distinct increase in light extinction is observed, which can mostly be attributed to enhancement of the light-scattering efficiencies of submicrometer particles by hygroscopic growth thereof. The proposed measurement method allows humidity characteristics of pyrotechnic smoke emissions to be compared.<\/p>\n<hr \/>\n<p><strong>Ref:<\/strong>\u00a0JPyro, Issue 33, 2014, pp65-72-72 (J33-65)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Rene Yo Abe, Yoshiaki Akutsu, Akihiro Shimada and Takehiro Matsunaga\u00a0 Abstract: Light transmission and particle size distribution measurements of aerosol (smoke) emissions from pyrotechnic compositions have been performed in a combustion chamber at atmospheric pressure over a wide range of relative humidity. Maximum light extinction over time is proportional to weight of incinerated sample and &hellip;<br \/><a href=\"http:\/\/www.jpyro.co.uk\/?p=1735\" class=\"more-link pen_button pen_element_default pen_icon_arrow_double\">Continue reading <span class=\"screen-reader-text\">Quantification of Visible Aerosols from Pyrotechnics: The Effect of Relative Humidity<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[2,29],"tags":[],"_links":{"self":[{"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/1735"}],"collection":[{"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1735"}],"version-history":[{"count":1,"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/1735\/revisions"}],"predecessor-version":[{"id":1736,"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/1735\/revisions\/1736"}],"wp:attachment":[{"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1735"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1735"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1735"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}