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This study documents and explores the process of designing a device to decrease the indoor temperature and particulate matter concentration in the air of corrugated steel homes in sub-Saharan Africa. The device, named the Roof Tube, generates power from a solar panel that goes towards powering a motor that rotates

This study documents and explores the process of designing a device to decrease the indoor temperature and particulate matter concentration in the air of corrugated steel homes in sub-Saharan Africa. The device, named the Roof Tube, generates power from a solar panel that goes towards powering a motor that rotates blades to output a desired airflow to draw air out from the inside environment. Excess power generated goes towards charging a battery pack during the day that then powers the motor and a light (to improve indoor living quality) during the night when the solar panel cannot collect any more energy. Calculations were done to estimate the ambient indoor temperature of a model home based on the heat transfer from the sun. From this, a rough airflow was determined to offset the temperature difference between the indoor and outdoor environment. A computational fluid dynamics test was performed to determine the effectiveness of the housing design. Results from all tests displayed a low difference between outdoor and indoor temperatures leading to a low prediction of outlet airflow. The designed device prioritized effectiveness, it displaces air at 2700 cfm and charges a 54000mAh battery pack that, when solar energy generation is cut off, can power the motor and light simultaneously for on average 3.02 hours, the motor alone for 8.88 hours, and the light alone for 4.57 hours.

ContributorsHangalay, Ayman (Author) / Paaijmans, Krijn (Thesis director) / Kwon, Beomjin (Committee member) / Bassin Jobe, Ndey (Committee member) / Barrett, The Honors College (Contributor) / Tech Entrepreneurship & Mgmt (Contributor) / Mechanical and Aerospace Engineering Program (Contributor)
Created2022-05