{ "150369-21909103": { "datetime_modified":"20261012T103829", "datetime_start":"20261015T153000", "datetime_end":"20261015T163000", "has_end_time":1, "date_start":"2026-10-15", "date_end":"2026-10-15", "time_start":"15:30:00", "time_end":"16:30:00", "time_zone":"America\/Detroit", "event_title":"IES Energy Seminar Series - Elucidating phase-change heat transfer mechanisms and their role in developing next generation energy systems", "occurrence_title":"", "combined_title":"IES Energy Seminar Series - Elucidating phase-change heat transfer mechanisms and their role in developing next generation energy systems: Matt Hughes, U-M Mechanical Engineering", "event_subtitle":"Matt Hughes, U-M Mechanical Engineering", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Abstract: \nLiquid\u2013vapor phase change is one of the most effective ways to absorb and reject thermal energy, yet many of the mechanisms governing phase-change heat transfer remain poorly understood. In this talk, I will discuss our recent advances in optical diagnostics that have enabled us to directly probe the physics of boiling heat transfer. We find that bubbles substantially enhance single-phase liquid heat transfer by increasing turbulence within the liquid, enabling a simple model that predicts the boiling curve from optical measurements alone - without machine learning. I will also discuss our measurements of microlayer evaporation, where a new spatial-temporal analysis technique enables accurate determination of microlayer thickness and accommodation coefficient, and motivates a boundary-layer-based scaling law for the initial microlayer thickness. Together, these studies demonstrate how advanced optical measurements can reveal previously inaccessible heat-transfer mechanisms and translate them into predictive models that provide a foundation for designing next generation thermal energy systems.\n\nBiography:\nMatt Hughes is an Assistant Professor in the Department of Mechanical Engineering at University of Michigan and currently an editor of the journals Applied Thermal Engineering and AI Thermal Fluids. He was previously a Research Scientist in the Department of Nuclear Science and Engineering at Massachusetts Institute of Technology. His research focuses on the fundamentals of multi-phase flow and heat transfer, autonomous operation of thermal hydraulic systems and experiments, and advanced thermal system design.\n\nFor the most up to date information on the location, please check the related link the week of this event", "occurrence_notes":null, "guid":"150369-21909103@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/150369", "building_id":"1000395", "building_name":"Francois-Xavier Bagnoud Building", "campus_maps_id":"17", "room":"FXB1012", "location_name":"Francois-Xavier Bagnoud Building", "has_livestream":0, "cost":"", "tags":["Civil and Environmental Engineering","CAEN","Sustainability","Social Sciences","seminar","Science","Research","Nuclear Engineering and Radiological Sciences","North Campus","Naval Architecture and Marine Engineering","Michigan Engineering","Materials Science","Law","Interdisciplinary","Industrial and Operations Engineering","Free","Environment","Engineering","Energy","Electrical Engineering and Computer Science","Mechanical Engineering"], "website":"https:\/\/ies.engin.umich.edu\/energy-seminar-series-title-tbd-october-15-2026\/", "sponsors":[ { "group_name":"Institute for Energy Solutions", "group_id":"5361", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/08\/event_150369_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_thumb\/media\/attachments\/2026\/08\/event_150369_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/08\/event_150369_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_2x\/media\/attachments\/2026\/08\/event_150369_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/08\/event_150369_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb\/media\/attachments\/2026\/08\/event_150369_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb_square\/media\/attachments\/2026\/08\/event_150369_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large\/media\/attachments\/2026\/08\/event_150369_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large_lightbox\/media\/attachments\/2026\/08\/event_150369_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_crop\/media\/attachments\/2026\/08\/event_150369_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_list\/media\/attachments\/2026\/08\/event_150369_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/08\/event_150369_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/08\/event_150369_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_grid_2x\/media\/attachments\/2026\/08\/event_150369_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_large\/media\/attachments\/2026\/08\/event_150369_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/08\/event_150369_original-1.jpg" }, "occurrence_count":1, "first_occurrence":21909103 } , "153708-21916206": { "datetime_modified":"20261014T141253", "datetime_start":"20261015T153000", "datetime_end":"20261015T163000", "has_end_time":1, "date_start":"2026-10-15", "date_end":"2026-10-15", "time_start":"15:30:00", "time_end":"16:30:00", "time_zone":"America\/Detroit", "event_title":"Surveying the Early Universe in 4D: From Black Holes and Galaxies to the Cosmic Web", "occurrence_title":"", "combined_title":"Surveying the Early Universe in 4D: From Black Holes and Galaxies to the Cosmic Web: Dr. Feige Wang", "event_subtitle":"Dr. Feige Wang", "event_type":"Conference \/ Symposium", "event_type_id":"5", "description":"A few hundred million years after the Big Bang, the first generations of stars, galaxies, and active galactic nuclei began to ionize and reheat the cold, dark, and neutral Universe. This special cosmic epoch, known as the Epoch of Reionization (EoR), holds crucial clues to how the first luminous sources evolved and how the earliest cosmic structures assembled. JWST, particularly through its wide-field slit-less spectroscopy (WFSS) capabilities, offers an unprecedented opportunity to connect individual galaxies and black holes to their dark matter halos and the surrounding cosmic web. By obtaining spectra of nearly every source within a field of view, WFSS enables efficient spectroscopic mapping of the three-dimensional early Universe.\n\nIn this talk, I will highlight recent discoveries from several treasury JWST\/NIRCam WFSS surveys, focusing on three interconnected science themes: the growth of early supermassive black holes and their connection to dark matter halos, including the newly discovered population of little red dots; the emergence and assembly of the cosmic web; and the connection between AGNs, galaxies, and cosmic re-ionization. These observations are transforming our understanding of the early Universe, moving beyond individual galaxy discoveries toward statistical spectroscopic samples, three-dimensional maps of the early structures, and measurements linking\ngalaxies to the ionization state of the intergalactic medium.\n\nFinally, I will briefly discuss how the Nancy Grace Roman Space Telescope will build on these JWST discoveries. By extending spectroscopic surveys to cosmological volumes, Roman will enable a new generation of statistical studies of black hole growth, galaxy evolution, large-scale structure, and re-ionization. Together, JWST and Roman are launching an exciting new era of four-dimensional exploration of the early Universe: mapping its three-dimensional structure and evolution across cosmic time.", "occurrence_notes":null, "guid":"153708-21916206@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/153708", "building_id":"1000167", "building_name":"West Hall", "campus_maps_id":"163", "room":"411", "location_name":"West Hall", "has_livestream":0, "cost":"", "tags":["Colloquium Series","Physics","Talk","AEM Featured","Astronomy","astrophysics","Colloquium"], "website":"", "sponsors":[ { "group_name":"Astronomy Colloquia", "group_id":"3797", "website":"" }, { "group_name":"Department of Physics", "group_id":"1965", "website":"" }, { "group_name":"Physics Workshops & Conferences", "group_id":"3813", "website":"" } ], "image_url":"", "styled_images":{ "event_thumb":"", "event_large":"", "event_large_2x":"", "event_large_lightbox":"", "group_thumb":"", "group_thumb_square":"", "group_large":"", "group_large_lightbox":"", "event_large_crop":"", "event_list":"", "event_list_2x":"", "event_grid":"", "event_grid_2x":"", "event_feature_large":"", "event_feature_thumb":"" }, "occurrence_count":1, "first_occurrence":21916206 } }