{"id":25558,"date":"2023-07-05T09:45:00","date_gmt":"2023-07-05T08:45:00","guid":{"rendered":"https:\/\/www.engineernewsnetwork.com\/blog\/?p=25558"},"modified":"2023-07-04T15:47:53","modified_gmt":"2023-07-04T14:47:53","slug":"radar-measurements-can-improve-a-key-technology-for-the-energy-and-process-industries","status":"publish","type":"post","link":"https:\/\/www.engineernewsnetwork.com\/blog\/radar-measurements-can-improve-a-key-technology-for-the-energy-and-process-industries\/","title":{"rendered":"Radar measurements can improve a key technology for the energy and process industries"},"content":{"rendered":"\n<p>Fluidised beds is a technology used in a variety of industries and plays an important role in the transition to green energy and the production of food and drugs. However, the process that occurs inside a fluidised bed is extremely complex and \u2013 due to a lack of effective measurement techniques \u2013 has remained largely unknown. Now, researchers from Chalmers University of Technology in Sweden have developed a high-frequency radar technique that can measure exactly what is happening inside a fluidised bed with unrivalled precision. This breakthrough could lead to completely new and more efficient processes in several industries, including energy conversion.&nbsp;<\/p>\n\n\n\n<p>Fluidised bed combustion is one of the leading technologies used in the world\u2019s thermal power plants. This technology converts solid fuels, such as biomass and waste, into district heating and electricity. Fluidisation technology is also fundamental to many other processes that are expected to play an important role globally in the transition of energy systems, and in circular resource flows \u2013 such as in carbon capture, energy storage and the production of hydrogen and other fossil-free fuels*.&nbsp; &nbsp;<\/p>\n\n\n\n<p>Researchers at Chalmers University of Technology have now developed a radar technique able to provide a detailed characterisation of the flow of solids in fluidised beds, the lack of which has been holding back the development of these processes.<\/p>\n\n\n\n<p>Fluidised beds is already the most effective technology for converting solid biofuels into energy. This technology results in an efficient and consistent rate of combustion because the solid particles assume a liquid-like state which helps to distribute the heat homogeneously in the combustion chamber. In brief, fluidisation technology is based on a gas being blown through a bed of small sand-like particles in a reactor, so that these solid particles, the fuel and the gas become thoroughly mixed.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2023\/07\/bb55a19c51ef9706_org.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"577\" height=\"769\" src=\"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2023\/07\/bb55a19c51ef9706_org.jpg\" alt=\"\" class=\"wp-image-25560\" srcset=\"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2023\/07\/bb55a19c51ef9706_org.jpg 577w, https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2023\/07\/bb55a19c51ef9706_org-225x300.jpg 225w\" sizes=\"auto, (max-width: 577px) 100vw, 577px\" \/><\/a><figcaption class=\"wp-element-caption\">Diana Carolina Gu\u00edo P\u00e9rez, researcher in energy technology at Chalmers<\/figcaption><\/figure>\n<\/div>\n\n\n<p><strong>Like a sandstorm and a wildfire in one<\/strong><\/p>\n\n\n\n<p>In order to achieve even greater efficiencies in this process, you need to be able to understand and control how the solid particles behave in the mixture. But the reactor environment is often hot, dirty and corrosive \u2013 like a sandstorm and a wildfire in one \u2013 effectively preventing any type of measurement and thus limiting our understanding of what is actually happening inside the reactor.&nbsp;<\/p>\n\n\n\n<p>The Chalmers researchers\u2019 new solution to this problem is an extremely high-frequency radar technique that can measure the flows of solid particles in fluidised beds with unrivalled precision. Inspired by the pulse-Doppler radar used to track weather phenomena such as rain or snow, this is the first time the technique has been demonstrated in the context of a fluidised bed. This breakthrough is now expected to pave the way for new and more efficient processes in a number of industries.<\/p>\n\n\n\n<p>\u201cThe use of the high-frequency terahertz radar instrument demonstrated in our study has the potential to revolutionise how fluidised bed technology can be designed and used in many industrial sectors \u2013 from energy conversion to the food industry and drug production. This is one of very few demonstrations of the use of pulse-Doppler radar technique at submillimetre wave frequencies, and it is the first time that it has been used for making measurements in a fluidised bed,\u201d says Diana Carolina Gu\u00edo P\u00e9rez, researcher in energy technology at Chalmers.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2023\/07\/aeb5f1716d572098_org.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"577\" height=\"769\" src=\"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2023\/07\/aeb5f1716d572098_org.jpg\" alt=\"\" class=\"wp-image-25561\" srcset=\"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2023\/07\/aeb5f1716d572098_org.jpg 577w, https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2023\/07\/aeb5f1716d572098_org-225x300.jpg 225w\" sizes=\"auto, (max-width: 577px) 100vw, 577px\" \/><\/a><figcaption class=\"wp-element-caption\">Marlene Bonmann, post-doc at the Terahertz and Millimetre Wave Laboratory, Department of Microtechnology and Nanoscience, Chalmers University of Technology<\/figcaption><\/figure>\n<\/div>\n\n\n<p><strong>Measurement accuracy<\/strong><\/p>\n\n\n\n<p>While the measurement techniques used in fluidised beds are normally low-resolution, produce results that are difficult to interpret, or cause disturbances in the flow, the Chalmers researchers\u2019 high-frequency terahertz radar technique can penetrate the reactor from the outside and measure the behaviour of the particles inside it without disturbing the flow. The radar technique can also measure the velocity and concentration of the solid particles simultaneously with great precision and high resolution in time and space. This means that even minimal changes in the flow can be detected in real-time, which is important when monitoring and controlling industrial processes.&nbsp;<\/p>\n\n\n\n<p>In the researchers\u2019 study, the technique was demonstrated in practice, for the first time, in a three-metre high circulating fluidised bed boiler. Their findings showed a measurement quality that exceeded the quality achieved by the methods previously used in the field by a big margin.<\/p>\n\n\n\n<p>\u201cWe have been able to show that pulse-Doppler radar technique at frequencies up to 340 GHz can measure both the distribution of particles and their velocity inside a process reactor at a much higher resolution than other technologies can. This is information that has long been lacking in the field and will make it possible to improve and scale-up process reactors and \u2013 in the case of energy conversion \u2013 reduce emissions of unwanted residual products,\u201d says Marlene Bonmann, post-doc at the Terahertz and Millimetre Wave Laboratory at Chalmers University of Technology.\u00a0<\/p>\n\n\n\n<p>\u201cThe knowledge that can be acquired with our high-frequency terahertz radar technique has the potential to break new ground in our understanding of solids flows in fluidised bed reactors and other solids handling units. For example, it can lead to improved operation and design of the reactors needed in existing and completely new fluidised bed-based conversion processes, such as carbon capture and storage, energy storage and thermal cycling,\u201d says Diana Carolina Gu\u00edo P\u00e9rez.<\/p>\n\n\n\n<p>The scientific journal article Radar-based measurements of the solids flow in a circulating fluidised bed in ScienceDirect was written by Diana Carolina Gu\u00edo-P\u00e9rez, Marlene Bonmann, Tomas Bryllert, Martin Seemann, Jan Stake, Filip Johnsson and David Pallar\u00e8s. These researchers are active at the Department of Space, Earth and Environment and the Department of Microtechnology and Nanoscience at Chalmers University of Technology, Sweden.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Fluidised beds is a technology used in a variety of industries and plays an important role in the transition to green energy and the production of food and drugs. However, the process that occurs inside a fluidised bed is extremely complex and \u2013 due to a lack of effective measurement techniques \u2013 has remained largely &hellip;<\/p>\n","protected":false},"author":1,"featured_media":25559,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[105,199],"tags":[11790,1772],"class_list":["post-25558","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-design","category-news-views-and-opinion","tag-chalmers-university-of-technology","tag-radar"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Radar measurements can improve a key technology for the energy and process industries - Engineer News Network<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.engineernewsnetwork.com\/blog\/radar-measurements-can-improve-a-key-technology-for-the-energy-and-process-industries\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Radar measurements can improve a key technology for the energy and process industries - Engineer News Network\" \/>\n<meta property=\"og:description\" content=\"Fluidised beds is a technology used in a variety of industries and plays an important role in the transition to green energy and the production of food and drugs. 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