Innovative Product Design

In this course, we were tasked with "redesigning the student experience so that they dont just get by, but thrive." Our project was driven by the recognition of a pressing issue: students' perpetual time constraints compounded by the rapid battery drainage of aging tech products and the scarcity of accessible outlets. Recognizing this challenge, we endeavored to empower students on the move by harnessing the natural energy that the body produces. Our aim was not only to address immediate charging needs but also to cultivate an environment where students could thrive, unencumbered by the limitations of conventional power sources.

To tackle this problem, we explored various avenues, that motion could be converted to electric energy. Mechanical sources included walking and figeting which led us to concepts such as a fidget spinner generator or a shoe attachment. However, our focus ultimately converged on the thermal energy radiating from the body at all times. We began developing a wearable solution in the form of a hat equipped with thermoelectric generators (TEGs). This decision was guided by considerations of comfort, affordability, and feasibility, aligning with our overarching goal of enhancing the student experience.

Combining skills learned in multiple different classes, like mechatronics, thermodynamics, and heat transfer,  was instrumental in optimizing power generation and insulation within the hat to ensure functionality. As we made iterations to our design, we found significant breakthroughs in enhancing the fit of our hat. By ensuring a snug fit, we were able to maintain optimal contact between the thermoelectric generators (TEGs) and the wearer's head. This close contact facilitated better heat transfer, improving the efficiency of power generation.

We crafted a working circuit comprising TEGs, a voltage regulator, a battery, and a battery management integrated circuit (as shown above).  An integral aspect of our design evolution was the incorporation of a battery and battery management circuit. This addition not only facilitated convenient charging while on the move but also ensured a steady and reliable charge current. With the inclusion of these components, users can charge the hat during their daily activities, enabling them to power their devices later in more convenient settings without the need for continuous tethering to the hat. 

As we tested our hat design and continued research into the functionality of TEGs, it became evident that the hat's capacity to harness body heat would be most effective in environments with substantial temperature differentials between the head and surroundings. Drawing from my personal experience as a rower familiar with frigid mornings on the water, we realization its potential suitability for athletes training in wintry conditions. 


This revelation opened up a new realm of possibilities for our project, particularly in the realm of outdoor sports. We envisioned scenarios where our hat could serve as a vital safety tool for trail runners or backcountry skiers. In these pursuits, where the risk of getting lost or encountering emergencies is ever-present, the reliability of a charged phone can be a matter of life and death. By providing a consistent charging source derived from the wearer's own body heat, our hat has the potential to significantly enhance the safety and peace of mind of athletes navigating remote and unpredictable terrains.


For our final presentation, we pitched our product to a panel of "industry experts" consisting of graduated students, Cornell faculty members, and local engineers. 

This project developed my skills in: