Fan blade daigram

Model of the ceiling fan

Tackling the problem

Sudipto collapsed ideas and put Shaun, Vidur and me into the same group. We all had similar ideas, to do with modifying the blades of the fan. To maintain the shape of the fan we decided to use a canvas glove on all the blades. This would retain water and remain damp for long. Now we needed to find a way of transporting water onto the blades. Shaun had an idea about using centrifugal force. If we put a container of water onto the rotating shaft, that is connected to the shaft and has small holes leading to the blades, it will force water out onto the blades when the fan is in motion. To facilitate that movement, we also decided to drill holes in the fan blade itself. 

The problem with the sponge idea

Later, I realized that the fan becomes slower with the sponge on it. It doesn't throw out as much air as it should. So it was cooling, but a very small area and over a long period of time. I tried to tackle this problem by making the sponge thinner. It was still taking very long to cool. Sudipto suggested that instead of trying to attach things to the fan, I should make blades from water absorbing material. This way the shape of the blades will be maintained.