{"publisher":{"name":"MediaBias News","url":"https://mediabias.news","methodology":"https://mediabias.news/methodology","editorialPrinciples":"https://mediabias.news/editorial-principles","corrections":"https://mediabias.news/corrections"},"scoreGuide":{"trust":"How well corroborated and evidenced the source reporting is. 0-100, higher is better.","critic":"Craft quality of the source journalism: context, balance, fact vs comment. 0-100, higher is better.","hype":"How far the source presentation runs ahead of substance. 0-100, LOWER IS BETTER.","scope":"Scores assess the original reporting this article was written from, not the truth of the underlying event and not the quality of this write-up."},"assessmentGuide":{"type":"coverage-and-source-reporting-analysis","factCheck":{"status":"not-performed","note":"Media Bias News compares coverage and scores the source reporting. It does not currently publish a ClaimReview verdict on whether the underlying event or claim is true."},"sourceFactuality":{"note":"Factuality values describe published ratings of the outlets that covered the story. They are not a factuality verdict on this story or its claims."}},"story":{"id":"https://mediabias.news/tech/scientists-develop-solid-state-cooling-system-using-shape-memory-alloys","slug":"scientists-develop-solid-state-cooling-system-using-shape-memory-alloys","url":"https://mediabias.news/tech/scientists-develop-solid-state-cooling-system-using-shape-memory-alloys","title":"Scientists Develop Solid-State Cooling System Using Shape-Memory Alloys","subtitle":"A new prototype converts heat into mechanical motion for cooling, potentially reducing electricity use in electronics.","excerpt":"Researchers have created a solid-state cooling system that uses shape-memory alloys to convert heat into mechanical motion. The technology, developed by scientists from Japan and Germany, aims to reduce the significant electricity consumption associated with cooling in data centers and other electronic devices.","category":"Science & Tech","area":null,"publishedAt":"2026-09-02T20:46:20.344Z","sourceReportedAt":"2026-09-01T23:03:52.790Z","updatedAt":"2026-09-02T20:46:20.344Z","readTime":"2 min read","scores":{"trust":50,"critic":55,"hype":35,"notes":{"trust":"Two full reports corroborate core claims; digests add breadth but no new facts.","critic":"Quotes and figures present; some digests lack context or sourcing.","hype":"Headlines overstate practical impact; body tempers claims."}},"tags":["#SolidStateCooling","#ShapeMemoryAlloys","#DataCenters","#EnergyEfficiency","#Innovation"],"entities":["University of Tsukuba","Karlsruhe Institute of Technology","TiNi","TiNiFe"],"body":[{"type":"key_takeaways","items":["Scientists from the University of Tsukuba and Karlsruhe Institute of Technology have developed a solid-state cooling system using shape-memory alloys.","The prototype employs two ultra-thin metal films to transform heat into mechanical motion for cooling purposes.","Lab tests showed the system achieved a 12.9K temperature difference on the refrigerant film and a 4K difference between hot and cold parts.","This technology is intended to decrease the electricity required for cooling in data centers and electronics."]},{"type":"paragraph","text":"A new solid-state cooling system has been developed by scientists from the University of Tsukuba in Japan and the Karlsruhe Institute of Technology in Germany. This prototype utilises shape-memory alloys to convert heat into mechanical motion, which then drives the cooling process. The technology aims to address the substantial electricity demands of cooling systems in data centres and other electronic devices."},{"type":"paragraph","text":"The system is built using two ultra-thin metal films, identified as TiNi and TiNiFe. When the TiNi film is heated, it shrinks, converting thermal energy into mechanical force. This force then stretches the TiNiFe refrigerant film, causing a reversible phase change that results in cooling. In laboratory tests, the system demonstrated a 12.9K temperature difference on the refrigerant film and a 4K temperature difference between the hot and cold components."},{"type":"paragraph","text":"Further testing indicated that the prototype reached 84% of its theoretical maximum cooling efficiency. While current iterations cannot yet cool modern processors due to limitations such as response time and system geometry, researchers are exploring ways to increase cooling capacity, including connecting multiple films in parallel. The technology could potentially be powered by waste heat generated by the devices it cools."},{"type":"heading","text":"Coverage comparison"},{"type":"heading","text":"What the coverage left out"},{"type":"paragraph","text":"None of the centre-rated reports mentioned the specific temperature differences achieved in lab tests, such as the 12.9K on the refrigerant film or the 4K between hot and cold parts. The efficiency figure of 84% of theoretical maximum cooling efficiency was also not included in these reports."}],"basedOn":[{"sourceName":"Reuters","url":"https://reuters.com/business/energy/not-just-nvidia-these-power-cooling-firms-are-riding-trillion-dollar-data-centre-2026-09-01","headline":"Not just Nvidia: these power and cooling firms are riding the trillion-dollar data centre boom","angle":"","publishedAt":"2026-09-01T23:03:52.790Z"},{"sourceName":"CyberNews","url":"https://cybernews.com/ai-news/solid-state-cooler-data-centers-no-electricity","headline":"Data center cooling could run on its own waste heat","angle":"","publishedAt":"2026-09-01T12:33:00.000Z"},{"sourceName":"Heti Világgazdaság","url":"https://hvg.hu/tudomany/20260901_mechanikai-hutes-hulladekho-kornyezetbarat-hutes","headline":"The New Refrigerator Has Been Built, Powered by Waste Heat","angle":"","publishedAt":"2026-09-01T09:03:00.000Z"},{"sourceName":"Unknown","url":"https://techno.nv.ua/ukr/innovations/tverdotilne-oholodzhennya-bez-elektrodviguna-vcheni-predstavili-novu-sistemu-50637399.html","headline":"Solar Energy. Scientists Have Created a Cooling System that Converts Heat to Cold without Electricity","angle":"","publishedAt":"2026-09-01T08:34:00.000Z"},{"sourceName":"Aroged","url":"https://aroged.com/2026/09/01/chips-will-be-able-to-use-their-own-heat-to-cool-themselves-scientists-create-unusual-solid-state-refrigerator","headline":"Chips will be able to use their own heat to cool themselves - scientists create unusual solid-state refrigerator","angle":"","publishedAt":"2026-09-01T08:21:14.000Z"},{"sourceName":"Thanh Niên","url":"https://thanhnien.vn/dot-pha-cong-nghe-lam-mat-moi-khong-can-su-dung-dien-185260901132142468.htm","headline":"A Breakthrough in New Cooling Technology that Doesn't Require Electricity.","angle":"","publishedAt":"2026-09-01T07:56:00.000Z"},{"sourceName":"onlinemarketingscoops.com","url":"https://onlinemarketingscoops.com/2026/08/31/scientists-create-motor-free-cooling-system-powered-entirely-by-heat","headline":"Scientists Create Motor Free Cooling System Powered Entirely By Heat","angle":"","publishedAt":"2026-08-31T19:45:24.000Z"},{"sourceName":"op-online.de","url":"https://op-online.de/welt/karlsruher-forscher-machen-aus-abwaerme-kaelte-und-wollen-damit-strom-fuers-kuehlen-sparen-zr-94467162.html","headline":"Karlsruhe Researchers Turn Waste Heat Into Cold – and Thus Want to Save Electricity for Cooling","angle":"","publishedAt":"2026-08-31T18:47:21.431Z"},{"sourceName":"mannheim24.de","url":"https://mannheim24.de/welt/karlsruher-forscher-machen-aus-abwaerme-kaelte-und-wollen-damit-strom-fuers-kuehlen-sparen-zr-94467162.html","headline":"Karlsruhe Researchers Turn Waste Heat Into Cold – and Thus Want to Save Electricity for Cooling","angle":"","publishedAt":"2026-08-31T18:39:26.695Z"},{"sourceName":"Kreiszeitung","url":"https://kreiszeitung.de/wissen/karlsruher-forscher-machen-aus-abwaerme-kaelte-und-wollen-damit-strom-fuers-kuehlen-sparen-zr-94467162.html","headline":"Karlsruhe Researchers Turn Waste Heat Into Cold – and Thus Want to Save Electricity for Cooling","angle":"","publishedAt":"2026-08-31T18:32:00.921Z"},{"sourceName":"merkur.de","url":"https://merkur.de/wissen/karlsruher-forscher-machen-aus-abwaerme-kaelte-und-wollen-damit-strom-fuers-kuehlen-sparen-zr-94467162.html","headline":"Karlsruhe Researchers Turn Waste Heat Into Cold – and Thus Want to Save Electricity for Cooling","angle":"","publishedAt":"2026-08-31T18:29:51.149Z"},{"sourceName":"tz.de","url":"https://tz.de/wissen/karlsruher-forscher-machen-aus-abwaerme-kaelte-und-wollen-damit-strom-fuers-kuehlen-sparen-zr-94467162.html","headline":"Karlsruhe Researchers Turn Waste Heat Into Cold – and Thus Want to Save Electricity for Cooling","angle":"","publishedAt":"2026-08-31T18:19:54.951Z"},{"sourceName":"hna.de","url":"https://hna.de/wissen/karlsruher-forscher-machen-aus-abwaerme-kaelte-und-wollen-damit-strom-fuers-kuehlen-sparen-zr-94467162.html","headline":"Karlsruhe Researchers Turn Waste Heat Into Cold – and Thus Want to Save Electricity for Cooling","angle":"","publishedAt":"2026-08-31T18:09:42.159Z"},{"sourceName":"Tom's Hardware","url":"https://tomshardware.com/tech-industry/manufacturing/motorless-solid-state-cooler-uses-heat-to-cool-itself-could-recycle-processor-heat-into-cooling-shape-memory-alloy-films-could-turn-data-center-exhaust-into-refrigeration","headline":"Motorless solid-state cooler uses heat to cool itself; 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