Page 27 - Book of Abstracts 2023

Small scale cooling methods Me-4-2
By: Or Or Kakun Orkakun15@gmail com Aviya Aviya Kadosh Dayan Aviyak10025@gmail com com 1
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Advisor: Dr Efraim Zemach1 2 2 Shamoon College of Engineering Beer-Sheva
2SNRC
In our project high temperature heat heat dissipation meets the the significant challenge of the the increasing demand for heat heat dissipation in in in in in various systems especially in in in in in electronic components components Microchannels are attractive for cooling electronic components components due to to their their small small size however their their small small diameters significantly limit limit flow to to the the the laminar regime characterized by limited heat dissipation This study investigates the cooling of electronic components in in in in in in microchannels with vortex rings rings in in in in in in in in in gas flow Vortex rings rings disrupt the the laminar boundary layer increasing the the heat dissipation rate by a a a a a a a a a a a a a a factor of five Numerical simulations and experiments were conducted to to examine flow fields in in microchannels Keywords: air flow heat transfer Laminar regime microchannels Reynolds number vortex rings An internal combustion engine that runs on on on hydrogen generation
Me-4-3
By: Yarin Yarin Abutbul Abutbul Yarin Yarin Abutbul Abutbul w@gmail com 3 Advisors: Prof Vitaly Gitis Dr Efraim Zemach Mrs Mor Lagziel
1Shamoon College of of Engineering Beer-Sheva
2SNRC
3Ben-Gurion University of the Negev Beer-Sheva
A modern lifestyle demands frequent energy use and and hydrogen is is is a a a a a a a a a promising alternative fuel source that may be produced from water by hydrolysis However the the the challenges include the the the extraction and storage of hydrogen as as well as as the the the need for efficient catalysts A batch test system using a a a a a a a a a a a a a a a a a a a round flask and and an an an alumina catalyst catalyst catalyst coated with cobalt was used to study the effects of catalyst catalyst surface area and and material amount on on on hydrogen production NPJ technology was employed to 3D print a a a a a a a a a a uniform alumina-based catalyst for for a a a a a a a a a a continuous flow system Our reaction chamber design ensures efficient mixing and separation of hydrogen gas from water vapor Keywords: catalysts continuous flow system hydrogen hydrogen production NPJ technology 1
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Book of Abstracts | 2023
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