Presenter(s)

    Clayton Douglas Rosso, Quinn T. Whisler

    Comments

    Presentation: 10:45-12:00, Kennedy Union Ballroom

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    Description

    The Solar Thermal Absorption Refrigerator (STAR) uses no electricity to cool refrigerated items including vaccines and perishable food to be used in remote areas with unreliable electricity. This process exploits adsorptive refrigeration using ethanol and activated carbon. Evaporative cooling of ethanol under vacuum takes heat away from the refrigerated objects turning the liquid ethanol into vapor. The ethanol gas absorbs onto activated carbon. During the desorption process, heating the activated carbon evaporates the ethanol which condenses to start the cycle over again. The system runs adsorption and desorption to create a refrigeration cycle. After sitting dormant for multiple years, the STAR apparatus was repaired and tested to determine whether or not the working pair of ethanol and activated carbon is viable. The first part of the cycle, adsorption, was evaluated for the amount of ethanol evaporated and the lowest working temperature. Tests running desorption were conducted to determine the amount of ethanol returned. The group tested multiple treatment procedures to remove possible contaminants on the activated carbon. SEM imaging and SDT testing were performed on the activated carbon to determine the concentrations of contaminants and how they affect heating and cooling of the carbon.

    Publication Date

    4-17-2024

    Project Designation

    Course Project - EGR 398 01

    Primary Advisor

    Li Cao, Amy R. Ciric, Jinchen Han, Scott J. Schneider

    Primary Advisor's Department

    Chemical and Materials Engineering

    Keywords

    Stander Symposium, School of Engineering

    Institutional Learning Goals

    Practical Wisdom; Scholarship

    Solar Thermal Adsorption Refrigerator

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