On the electronics side, we noticed that the voltage varies when using a battery since it does not have a voltage regulator. We tried to use the voltage regulator from the boost converter but found it problematic, so we used a voltage regulator from a powerbank instead. We found that…Read More

We did some acoustic testing for three blades and found that the blades we labelled as “best” and “not best” are relatively quiet, while “long boi”, the asymmetric fan, turned out to be pretty noisy, with a high percentage of low frequencies. From a video we referenced, an asymetric blade…Read More

After a tiring week of FOP, we’re back in business. We continued to find ways to optimise the fan blades and make them quieter. Taking inspiration from a zipline blade used to deliver medical supplies in Rwanda, Jedidiah designed three asymmetric blades with varying angles between blades, and found that…Read More

Remember how we mentioned that the air at the outlet deflects to the left? Well, we took inspiration from garden leaf blowers and shifted our air outlet away from the center to accomodate for this. Our air velocity at outlet has now doubled to about 5 m/s!   

The past week was pretty good, too. This entry is a long one, so grab some popcorn. We gave up on using a pump to deliver water to the evaporative cooling system, after some final failed attempts, and ordered the piezoelectric ultrasonic fogger. We also printed a silica cage to…Read More