INSTITUTIONAL SEMINAR
Exploration of heat transfer coefficients in fully developed flows applied to synchrotron radiation absorbers
Last Friday, April 11th, the 1918 Reforma Hall of the Faculty of Engineering (UNNE) in Resistencia, Chaco Province, hosted the Institutional Seminar "Exploration of Heat Transfer Coefficients in Fully Developed Flows Applied to Synchrotron Radiation Absorbers." The meeting, which began at 10:00 a.m., brought together researchers and professionals interested in the challenges of particle accelerator engineering.
The presentation focused on the crucial importance of cooling channel design for critical components such as mirrors and absorbers in accelerators. It was highlighted how the mechanical stability of these elements, fundamental to the quality of the light source, directly depends on the control of temperature changes generated by the impact of the radiation beam. Cooling, mostly achieved through water heat exchanger systems, requires the precise use of heat transfer coefficients.
Gustavo Raush, an expert in the field, explained how the heat transfer coefficients traditionally used in the design of these systems have been shown to generate oversizing. His study detailed numerical-experimental comparisons of these factors in laminar, turbulent, and transition regimes, analyzing various geometries of infrared and X-ray mirrors. In all cases, an overestimation of the coefficients used to date was evident.
This research takes on particular relevance in the context of new developments in electron and proton beam storage machines, where substantial improvements in the energy efficiency of these large facilities are a priority.
Gustavo Raush:
Electrical Engineer (UNNE) and PhD in Thermal Engineering (UPC). With previous experience in Automation and Robotics (UPC-CSIC), his career combines academia, research, and technology in areas such as heat transfer, energy efficiency, and flow measurement techniques. He is currently an Associate Professor and Deputy Director at the UPC, and his research interests include energy efficiency in mobile hydraulic machinery. He has received teaching and research awards and is a reviewer for various scientific publications.
His distinguished career combines experience in academia, research, and technology, covering areas such as instrumentation and data acquisition in remote systems, heat and mass transfer, power transmission through fluids, and energy efficiency.
Eng. Raush has extensive knowledge in the measurement of aerodynamic variables in wind tunnels and advanced flow measurement techniques (hot-wire anemometry and image velocimetry). He has participated in relevant European projects, such as the experimental validation of the FANWING propulsion concept using laser flow visualization (PIV&PTV). He has also collaborated with prestigious institutions such as the Technical University of Munich and the von Karman Institute, and worked at the Center for Heat and Mass Transfer (CTTC-UPC) on the study of supercritical reciprocating compressors and refrigeration systems with natural refrigerants such as CO2 (the subject of his doctoral thesis).
Since 2014, he has served as an Associate Professor in the Department of Fluid Mechanics at the UPC, teaching undergraduate, master's, and doctoral programs in industrial and aerospace engineering, where he currently holds the position of Deputy Director.
Relevant organizations or companies:
https://catmech.upc.edu/
https://mf.upc.edu/ca
https://eseiaat.upc.edu
https://www.cells.es/en
Links to their publications or previous work:
https://accelconf.web.cern.ch/ipac2022/doi/JACoW-IPAC2022-THPOTK050.html
https://accelconf.web.cern.ch/ipac2024/doi/jacow-ipac2024-tupr76/
https://medsi2023.vrws.de/papers/thppp016.pdf
https://doi.org/10.3390/en17174479
https://doi.org/10.3390/machines12120878
https://doi.org/10.3390/act14010035
https://doi.org/10.3390/en14092707
https://doi.org/10.3390/en15134558