Print Email Facebook Twitter Smart Personal Protective Equipment: UVGI Title Smart Personal Protective Equipment: UVGI Author Bakker, Roy (TU Delft Electrical Engineering, Mathematics and Computer Science) Brouwers, Marcel (TU Delft Electrical Engineering, Mathematics and Computer Science) Contributor van Zeijl, H.W. (mentor) van Driel, W.D. (graduation committee) Cotofana, S.D. (graduation committee) Degree granting institution Delft University of Technology Programme Electrical Engineering Project SPPE Date 2020-07-02 Abstract The Smart Personal Protective Equipment (SPPE) is proposed as a result of the COVID-19 pandemic, which has led to shortages of standard face masks. This thesis describes one of the three subsystems of the SPPE, namely the Ultraviolet Germicidal Irradiation (UVGI). The UVGI subsystem provides the SPPE with an in situ disinfection system, in order to prolong the period in which the filters of the SPPE can be used to at least 8 hours. The UVGI is implemented by the use of UV LEDs. This implementation is done in two steps. Step one is a simulation which allows for the optimization of the LED placement depending on a multitude of parameters, including: distance between the LEDs and the filter, and the LED tilt angle. The second step is the design of a driver circuit, to allow for the adjustment of the dose applied by the LEDs. The simulation resulted in an LED array which offers the most optimal irradiation of the filter surface. The driver circuit has been designed, simulated to verify its functionality, and implemented in the form of a PCB design. The UVGI subsystem provides the SPPE with an in situ disinfection system by delivering a base dose of 305 mJ/cm2 and a driver circuit which allows for adjusting this dose, should this be desired. The UVGI subsystem should be able to extend the period in which the filters of the SPPE can be used to at least 8 hours. However, due to the restriction of not being allowed to create a prototype this has not yet been verified. Subject UVGIUVCLEDVirus To reference this document use: http://resolver.tudelft.nl/uuid:0aef244b-a657-404e-bac3-fbd7dcac87a7 Part of collection Student theses Document type bachelor thesis Rights © 2020 Roy Bakker, Marcel Brouwers Files PDF uvgi_thesis_roy_bakker_ma ... ouwers.pdf 10.48 MB Close viewer /islandora/object/uuid:0aef244b-a657-404e-bac3-fbd7dcac87a7/datastream/OBJ/view