BEGIN:VCALENDAR VERSION:2.0 PRODID:-//wp-events-plugin.com//7.2.3.1//EN TZID:America/New_York X-WR-TIMEZONE:America/New_York BEGIN:VEVENT UID:0-7701@eng.ufl.edu DTSTART;TZID=America/New_York:20250904T125000 DTEND;TZID=America/New_York:20250904T134000 DTSTAMP:20250902T132705Z URL:https://www.eng.ufl.edu/news-events/events/thermal-transport-under-ext reme-conditions/ SUMMARY:Thermal Transport under Extreme Conditions DESCRIPTION:Dear Undergraduate and Graduate Students\, Faculty\, and Staff\ ,\nYou are invited! UF Department of Mechanical and Aerospace Engineering' s Seminar Series\nThis is a perfect opportunity to enjoy some coffee\, coo kies\, and captivating talks! These sessions feature amazing guest speaker s\, from academic trailblazers and industry movers to our very own faculty candidates showing off their expertise and fresh perspectives.\nCome for the treats\, stay for the engaging discussions\, and connect with fellow M AE enthusiasts. Everyone is welcome!\nThermal Transport under Extreme Cond itions\nSeptember 4\, 2025\, at 12:50pm\nLocation: MAE-A 303\nDr. Renkun C hen\nProfessor\nUniversity of California\, San Diego\nDepartment of Mechan ical and Aerospace Engineering and the Program in Materials Science and En gineering\nAbstract\nIn this talk\, I will present three recent examples o f our work addressing these challenges. First\, we have investigated therm al energy conversion and management at high temperatures (above 700 °C)\, a frontier relevant to solar-thermal energy conversion\, thermal energy s torage\, and industrial heating. Our work has focused on thermal character ization\, materials development\, device design—ranging from heat transf er in high-temperature materials for solar thermal applications [1]\, to t hermal insulation [2]\, and selective infrared emitters. Second\, as clima te change drives more frequent extreme heat events\, providing personal th ermal comfort for people working in hot outdoor environments has become in creasingly pressing. We are developing wearable thermoelectric devices tha t offer tunable cooling while addressing the challenge of dissipating heat into hot and humid ambient conditions (>\;40 °C\, >\;50% RH) [3–5] . This requires precise control of heat transfer in flexible textiles and wearable heat sinks. Finally\, we focus on thermal management for next-gen eration electronic devices\, such as AI data center chips\, which experien ce extreme heat fluxes approaching ~1000 W/cm²—nearly one-sixth of the flux from the solar surface. We have demonstrated stable and high-flux eva poration cooling using a porous fiber-membrane platform capable of sustain ing >\;800 W/cm² [6]. I will discuss the fundamental limits of this eva poration process\, as well as engineering opportunities for developing eva poration cooling technologies.\nBiography\nRenkun Chen is a Professor in t he Department of Mechanical and Aerospace Engineering and the Program in M aterials Science and Engineering at the University of California\, San Die go. He received his B.S. in Engineering Thermophysics from Tsinghua Univer sity (2004) and Ph.D. in Mechanical Engineering from the University of Cal ifornia\, Berkeley (2008). After a postdoctoral fellowship at Lawrence Ber keley National Laboratory\, he joined UC San Diego in 2009. His research g roup at UCSD investigates micro- and nanoscale heat transfer and its appli cations in energy\, electronics\, and bio-systems. He has received an R&am p\;D 100 Award and a Hellman Fellowship. He has supervised more than a doz en Ph.D. students\, many of whom have gone on to successful careers in aca demia and industry.\nMAE Faculty Host: Jingjing Shi CATEGORIES:Seminars LOCATION:MAE-A Room 303\, 939 Sweetwater Drive\, Gainesville\, FL\, 32611\, United States GEO:29.643814;-82.34865 X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=939 Sweetwater Drive\, Gain esville\, FL\, 32611\, United States;X-APPLE-RADIUS=100;X-TITLE=MAE-A Room 303:geo:29.643814,-82.34865 END:VEVENT BEGIN:VTIMEZONE TZID:America/New_York X-LIC-LOCATION:America/New_York BEGIN:DAYLIGHT DTSTART:20250309T030000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:EDT END:DAYLIGHT END:VTIMEZONE END:VCALENDAR