{"id":1652,"date":"2015-07-23T21:59:37","date_gmt":"2015-07-23T21:59:37","guid":{"rendered":"http:\/\/hydrogen.wsu.edu\/?page_id=1652"},"modified":"2016-11-02T17:05:29","modified_gmt":"2016-11-03T00:05:29","slug":"the-original-design","status":"publish","type":"page","link":"https:\/\/hub.wsu.edu\/ise\/the-original-design\/","title":{"rendered":"The System"},"content":{"rendered":"<section id=\"builder-section-1478125626114\" class=\"row single h1-header gutter pad-top\">\n<div style=\"\" class=\"column one expand\">\n<h2>Technical Information<\/h2>\n<\/p><\/div>\n<\/section>\n<section id=\"builder-section-1437688541693\" class=\"row single gutter pad-top expanded\">\n<div style=\"\" class=\"column one \">\n<p>&nbsp;<\/p>\n<h1>Key Components<\/h1>\n<p>The description above (see The Basics) goes over a simplified process for the liquefaction of hydrogen. The image to the left displays the original design&#8217;s flow diagram, with the process labeled in order from start (<strong>H1<\/strong>)\u00a0to finish\u00a0(<strong>H19<\/strong>). Ultra high purity hydrogen is supplied by either an hydrogen generator\u00a0or steam methane reformer at an operating pressure of 1400 psi (<strong>H1<\/strong>). This hydrogen enters a catalyst bed heat exchanger (<strong>H3<\/strong>), then enters the liquid nitrogen bath (<strong>H4<\/strong>)\u00a0where it is cooled to a temperature of ~77\u00ba K. When the cooled hydrogen exits the bath it enters our\u00a0patent pending vortex tube\u00a0(<strong>H5<\/strong>) where the &#8220;hot&#8221; hydrogen exits one end of the vortex tube (<strong>H16<\/strong>)\u00a0and cold hydrogen exits the other end (<strong>H6<\/strong>). Cold hydrogen enters a second catalyst bed heat exchanger where it exits\u00a0close to the liquefaction temperature (<strong>H7<\/strong>) and is expanded via J-T\u00a0valve (<strong>H8<\/strong>) in order to fully liquefy. The initial liquid\u00a0hydrogen is then temporarily stored in the\u00a0first tank before being pumped into the high pressure storage tank (<strong>H9<\/strong>) used for dispensing.<\/p>\n<p>Boil off from the first tank is used to pre-cool hydrogen exiting the &#8220;cold&#8221; end of the vortex tube (<strong>H14<\/strong>). This boil off is then mixed with the hydrogen gas exiting the &#8220;hot&#8221; end of the vortex tube where it is used to pre-cool hydrogen in the first catalyst bed heat exchanger (<strong>H17<\/strong>) before entering the compressor (<strong>H18<\/strong>). The boiling of liquid hydrogen\u00a0is used in our patent pending cryogenic thermal compression system\u00a0to pressurize the fill tank to the necessary dispensing pressure of ~10000 psi before fueling.<\/p>\n<p>Once the fuel has been dispensed (<strong>H19<\/strong>) excess pressure in the tank is vented into an actuator valve (<strong>H10<\/strong>) then\u00a0regulator (<strong>H10L<\/strong>) where it is reintroduced into the system at the necessary 1400 psi (<strong>H12<\/strong>). When the pressure released from the fill tank drops below 1400 psi the actuator valve will flip (<strong>H10R<\/strong>), gas will flow through a pressure regulator (<strong>H11<\/strong>) into the compressor\u00a0where the hydrogen will be returned to 1400 psi (<strong>H13<\/strong>).<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-1554\" src=\"https:\/\/hydrogen.wsu.edu\/wp-content\/uploads\/sites\/44\/2015\/06\/Original-Design.jpeg\" alt=\"Original Design\" width=\"628\" height=\"482\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<\/p><\/div>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<h2>Technical Information<\/h2>\n<p>&nbsp;<\/p>\n<p>Key Components<\/p>\n<p>The description above (see The Basics) goes over a simplified process for the liquefaction of hydrogen. The image to the left displays the original design&#8217;s &#8230; <a href=\"https:\/\/hub.wsu.edu\/ise\/the-original-design\/\" class=\"more-link\"><span class=\"more-default\">&raquo; More &#8230;<\/span><\/a><\/p>\n","protected":false},"author":323,"featured_media":0,"parent":0,"menu_order":10,"comment_status":"closed","ping_status":"closed","template":"template-builder.php","meta":[],"wsuwp_university_location":[],"wsuwp_university_org":[],"_links":{"self":[{"href":"https:\/\/hub.wsu.edu\/ise\/wp-json\/wp\/v2\/pages\/1652"}],"collection":[{"href":"https:\/\/hub.wsu.edu\/ise\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/hub.wsu.edu\/ise\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/hub.wsu.edu\/ise\/wp-json\/wp\/v2\/users\/323"}],"replies":[{"embeddable":true,"href":"https:\/\/hub.wsu.edu\/ise\/wp-json\/wp\/v2\/comments?post=1652"}],"version-history":[{"count":12,"href":"https:\/\/hub.wsu.edu\/ise\/wp-json\/wp\/v2\/pages\/1652\/revisions"}],"predecessor-version":[{"id":4984,"href":"https:\/\/hub.wsu.edu\/ise\/wp-json\/wp\/v2\/pages\/1652\/revisions\/4984"}],"wp:attachment":[{"href":"https:\/\/hub.wsu.edu\/ise\/wp-json\/wp\/v2\/media?parent=1652"}],"wp:term":[{"taxonomy":"wsuwp_university_location","embeddable":true,"href":"https:\/\/hub.wsu.edu\/ise\/wp-json\/wp\/v2\/wsuwp_university_location?post=1652"},{"taxonomy":"wsuwp_university_org","embeddable":true,"href":"https:\/\/hub.wsu.edu\/ise\/wp-json\/wp\/v2\/wsuwp_university_org?post=1652"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}