$\small{\textsf{Thermal\ Systems\ Researcher}}$
📩 thngu[at]dtu.dk 🎓 PhD Mech. Eng. 📍 Based in 🇩🇰 💼 DTU Denmark, [CV](<https://drive.google.com/file/d/1DZZ9XLPdlqHBrVZq-ZTgpu9gVhZaysdg/view?usp=sharing>), ORCID, 𝗶𝗻
I am a mechanical engineer by training, specializing in non-invasive optical imaging for investigating coupled heat and mass transfer phenomena, as well as physics-based computational methods. My work focuses on developing sustainable and energy-efficient technologies.
<aside> <img src="/icons/arrow-turn-right_gray.svg" alt="/icons/arrow-turn-right_gray.svg" width="40px" /> Interests: Heat and Mass Transfer; Energy Conversion and Management; Near-Infrared Spectroscopy; Scientific Machine Learning
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<aside> Research highlights
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Plasma gasification (ArcAMAT project)
Developing and demonstrating a novel waste recycling process using arc plasma with steam as plasma-forming gas in combination with advanced 3D-structured plasma torch electrodes.
Magnetocaloric effect-based refrigeration technology (ERATO project)
Heat transfer dynamics from a magnetocaloric material to the surrounding fluid, based on the temperature dependence of the absorption coefficient of water in the Near-Infrared region.
Numerically analyzed wavy structures to enhance active magnetic refrigeration.
Highlighted paper: T.A. Nguyen, N. Kakuta, K. Uchida, H. Nagano, Near-infrared imaging of heat transfer behavior between gadolinium and fluid during magnetization/demagnetization process of magnetocaloric effect, J. Appl. Phys. 135, 193904 (2024). https://doi.org/10.1063/5.0207290
Highlighted paper: T.A. Nguyen, R. Takata, K. Uchida, H. Nagano, Enhancement of thermodynamic efficiency in active magnetic refrigeration using sinusoidal wavy structures, Int. J. Heat Mass Transf. 240 (2025) 126654. https://doi.org/10.1016/j.ijheatmasstransfer.2024.126654.
Simultaneous visualization and measurement of 3D temperature and flow fields
Concurrent assessment of 3D temperature and Particle Tracking Velocimetry within water is achieved through a transmission method involving back illumination. This method employs a telecentric system oriented in two orthogonal directions and utilizes two Near-Infrared cameras.
Highlighted paper: T.A. Nguyen, K. Kondo, N. Kakuta, Simultaneous near-infrared measurement of temperature and flow fields of a thermal plume arising in water, J. Vis. (2024). https://doi.org/10.1007/s12650-024-00997-9
Utilize inverse Abel transform to reconstruct the 3D information of temperature
Inverse Abel transform for reconstructing 3D non-axisymmetric temperature fields in water formed by mixed convection surrounding a small heating sphere. It is based on the temperature dependence of the absorption coefficient of water at a wavelength of 1150 nm in the near-infrared region.
Highlighted paper: T.A. Nguyen, K. Kondo, N. Kakuta, Near-infrared measurement of temperature fields formed by mixed convection from a small heating sphere in water, Int. J. Therm. Sci. 176 (2022). https://doi.org/10.1016/j.ijthermalsci.2022.107498.