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  1. In this paper we report on the development and testing of hands-on desktop learning modules for transport courses in the Chemical and Mechanical Engineering disciplines. Two modules were developed to demonstrate fluid mechanics-related concepts, while two other modules were created for energy transport in heat exchangers. These devices are small, inexpensive, and made of see-through polycarbonate plastics using injection molding. These desktop learning modules are particularly suitable for use in undergraduate classrooms in conjunction with lectures to illustrate the working mechanism of devices seen in an industrial setting. Experiments are performed to understand the flow behavior and heat transfer performance on these modules. Our results show an excellent agreement for hydraulic head loss, volumetric flow rates, and overall heat transfer coefficients between experimental data and the corresponding theory, justifying the design and use of these devices in the classroom. Furthermore, we have measured student learning gains through pre-and posttests for each module based on in-class implementations at different universities. Assessment of student learning outcomes shows significant improvement in conceptual understanding when these modules are used in the undergraduate class.
    Free, publicly-accessible full text available August 23, 2023