{"id":400,"date":"2023-04-29T11:42:09","date_gmt":"2023-04-29T02:42:09","guid":{"rendered":"http:\/\/ec.me.tut.ac.jp\/?page_id=400"},"modified":"2025-05-31T22:13:28","modified_gmt":"2025-05-31T13:13:28","slug":"thermoacoustics","status":"publish","type":"page","link":"https:\/\/ec.me.tut.ac.jp\/en\/research\/thermoacoustics","title":{"rendered":"Thermoacoustics"},"content":{"rendered":"\n<p>Utilization of sound energy and waste heat with thermoacoustics, which is conversion phenomena between sound and heat energies, is focused on. A cascade of flat plates (parallel-plate stack) positioned in a cavity flow can drive the thermoacoustic heat flow and create a heat pump using aerodynamic sound. The effects of the stack position on a thermoacoustic heat pump were investigated using two stack aperture ratios through simulations of the coupled phenomena between fluid\u2013acoustic interactions in the cavity flow and heat conduction in the stack. In a reverse way, by adding heat to a stack in a cavity flow, aeroacoustically generated tone can be increased, which can be used for the acoustic sources for flow control.<\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center has-small-font-size is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"741\" src=\"https:\/\/ec.me.tut.ac.jp\/wp\/wordpress\/wp-content\/uploads\/2023\/05\/cavitytone_heatpump_en-1024x741.png\" alt=\"\" class=\"wp-image-541\" srcset=\"https:\/\/ec.me.tut.ac.jp\/wp\/wordpress\/wp-content\/uploads\/2023\/05\/cavitytone_heatpump_en-1024x741.png 1024w, https:\/\/ec.me.tut.ac.jp\/wp\/wordpress\/wp-content\/uploads\/2023\/05\/cavitytone_heatpump_en-300x217.png 300w, https:\/\/ec.me.tut.ac.jp\/wp\/wordpress\/wp-content\/uploads\/2023\/05\/cavitytone_heatpump_en-768x555.png 768w, https:\/\/ec.me.tut.ac.jp\/wp\/wordpress\/wp-content\/uploads\/2023\/05\/cavitytone_heatpump_en.png 1232w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"487\" src=\"https:\/\/ec.me.tut.ac.jp\/wp\/wordpress\/wp-content\/uploads\/2023\/04\/TAE_en-1024x487.png\" alt=\"\" class=\"wp-image-505\" srcset=\"https:\/\/ec.me.tut.ac.jp\/wp\/wordpress\/wp-content\/uploads\/2023\/04\/TAE_en-1024x487.png 1024w, https:\/\/ec.me.tut.ac.jp\/wp\/wordpress\/wp-content\/uploads\/2023\/04\/TAE_en-300x143.png 300w, https:\/\/ec.me.tut.ac.jp\/wp\/wordpress\/wp-content\/uploads\/2023\/04\/TAE_en-768x366.png 768w, https:\/\/ec.me.tut.ac.jp\/wp\/wordpress\/wp-content\/uploads\/2023\/04\/TAE_en-1536x731.png 1536w, https:\/\/ec.me.tut.ac.jp\/wp\/wordpress\/wp-content\/uploads\/2023\/04\/TAE_en-2048x975.png 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Demonstration of thermoacoustic engine<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-video aligncenter\"><video height=\"1080\" style=\"aspect-ratio: 1920 \/ 1080;\" width=\"1920\" controls src=\"https:\/\/ec.me.tut.ac.jp\/wp\/wordpress\/wp-content\/uploads\/2023\/04\/media2_TAE-Trim-1.mp4\"><\/video><figcaption class=\"wp-element-caption\">Sound generation from thermoacoustic engine (movie with sound)<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">Recent publications<\/mark><\/strong><\/p>\n\n\n<ul class=\"wp-block-latest-posts__list wp-block-latest-posts\"><li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/ec.me.tut.ac.jp\/en\/archives\/797\">Promotion of carbon dioxide adsorption using a zeolite-coated monolith with acoustic excitation, J. Fluid Sci. Tech.<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Utilization of sound energy and waste heat with thermoacoustics, which is conversion phenomena between sound and heat energies, is focused on. A cascade of flat plates (parallel-plate stack) positioned in a cavity flow can drive the thermoacoustic heat flow and create a heat pump using aerodynamic sound. The effects of the stack position on a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":541,"parent":395,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_locale":"en_US","_original_post":"http:\/\/ec.me.tut.ac.jp\/wp\/?page_id=134","vkexunit_cta_each_option":"","footnotes":""},"class_list":["post-400","page","type-page","status-publish","has-post-thumbnail","hentry","en-US"],"_links":{"self":[{"href":"https:\/\/ec.me.tut.ac.jp\/wp-json\/wp\/v2\/pages\/400","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ec.me.tut.ac.jp\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ec.me.tut.ac.jp\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ec.me.tut.ac.jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ec.me.tut.ac.jp\/wp-json\/wp\/v2\/comments?post=400"}],"version-history":[{"count":14,"href":"https:\/\/ec.me.tut.ac.jp\/wp-json\/wp\/v2\/pages\/400\/revisions"}],"predecessor-version":[{"id":1005,"href":"https:\/\/ec.me.tut.ac.jp\/wp-json\/wp\/v2\/pages\/400\/revisions\/1005"}],"up":[{"embeddable":true,"href":"https:\/\/ec.me.tut.ac.jp\/wp-json\/wp\/v2\/pages\/395"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ec.me.tut.ac.jp\/wp-json\/wp\/v2\/media\/541"}],"wp:attachment":[{"href":"https:\/\/ec.me.tut.ac.jp\/wp-json\/wp\/v2\/media?parent=400"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}