Handwash Station Upgrade

Originally developed as a rapid response to the pandemic, the initial unit underwent further refinement and development post-launch. This phase encompassed an extensive backlog of processes, including the creation of a Bill of Materials (BOM), Standard Operating Procedures (SOP), Engineering drawings, and rigorous testing. These measures were imperative for fortifying the product's presence in the market.

Seizing the opportunity to enhance cost-efficiency and elevate product quality, the primary focus was on redesigning the unit for streamlined manufacturing. Prior to this, the company had relied on the prototype and feedback from initial field trials. Leveraging insights gained from these trials, I seamlessly incorporated necessary adjustments into the design, spanning various sections and technologies.

Prior to the CFD study, basic hand calculations were performed using known fan flow rates and cross-sectional areas to predict velocity disparities and stagnation points. These calculations guided the creation of a mesh for the CFD study, optimized for computational efficiency while accurately representing airflow dynamics. The results validated the initial hypothesis, indicating that the airflow was directly impacting the system's performance.

Screen:

The upgraded unit features an improved and programable screen providing clear instructions on proper handwashing techniques and the ability to display advertisements linked to the tap. I spearheaded the specification, sourcing screen, and design of brackets, wiring, and trunking to seamlessly integrate this screen into the unit. Collaboration with the electrical engineer ensured the printed circuit board (PCB) and control system harmoniously meshed with the unit, with a detailed specification of the hardware to ensure optimal functionality.

Tap:

In the initial prototypes, the tap was a standard component lacking embedded technology, relying on a separate infrared (IR) board. This setup had its challenges, triggering unintentional responses if someone walked by in high-visibility clothing. This issue by reorienting the sensor and specifying a tap with embedded technology. Further details on this aspect can be found in a separate section [linked here].

Soap Dispenser:

Responding to customer feedback regarding the suboptimal performance of the original soap dispenser, I sought a more efficient solution. Leveraging technology from the development of a sanitiser gel dispensing station, I incorporated it into a redesigned soap dispenser, functioning as both a wall-mounted unit and a sanitiser dispenser. For detailed specifications on this aspect, please refer to [linked here].