Page 93 - tech fest 2025 אשדוד חוברת תקצירים

Development of a Portable Thermoelectric Cooling Vest
ME-B-17
Itay Mor Yossef; itay26000@gmail.com Yarin Siyahu; yarin14450@gmail.com
Advisors: Dr. Amir Zohar1, Mr. Yogev Attias1 1SCE - Shamoon College of Engineering, Ashdod
In hot environments, elevated body temperature poses serious health and performance risks, especially in demanding sectors like construction and agriculture in Israel. To address this issue, this project focuses on developing a portable, lightweight, and user-friendly cooling vest. The vest incorporates thermoelectric cooler (TEC) modules that leverage the Peltier effect to provide active cooling. It is powered by a portable battery designed to offer practical, extended operational duration, reducing thermal stress on the user. This innovation should increase the safety, comfort, and productivity of individuals engaged in activities or working under hot conditions.
Keywords: cooling vest, heat stress, Peltier effect, personal cooling, TEC
Improvement of Thermodynamic Properties of a Diffusion Absorption Cooling System Using Nanoparticles
ME-B-18
Ilan Shabat; edcedc66@gmail.com Tomer Amoyal; tomer13tomer13@gmail.com
Advisor: Dr. Bella Gurevich
SCE - Shamoon College of Engineering, Ashdod
This project investigates the impact of nanoparticle incorporation on the thermodynamic performance of ‘diffusion absorption refrigeration’ (DAR) systems. Specifically, it focuses on the effects of magnesium aluminate spinel nanoparticles on heat transfer, thermal stability, and energy efficiency. Our project involved a comprehensive literature review, supplier research, and laboratory experimentation. Preliminary results suggest that the addition of nanoparticles significantly improves the heat conductivity of the working fluid and enhances the system’s energy efficiency. We also examined the performance of the cooling system at several nanoparticle concentrations. These findings may contribute to more efficient and environmentally-friendly refrigeration technologies.
Keywords: DAR system, energy efficiency, nanoparticles, refrigeration, thermodynamics
Book of Abstracts | 2025
93