Page History

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INTRODUCTION

The Spring 2010 ANC team continued the design from is continuing research with lime feeders where the Fall 2009 team , based on the same idea left off. The original idea is that by settling placing a slanting slanted tube on top of a vertical column, the apparatus would function as an inverted traffic cone which has a high velocity at the bottom to fluidize big particles and a lower velocity at the top to capture small particlesone and running water upwards through the reactor, one can maintain a fluidized bed of lime particles in the lower segment but prevent solid lime from leaving with the effluent.(see 2009 design). However, in order to overcome the difficulties faced in the previous design, the new team improved the design by changing slanting tube's diameter from 1 inch to 2 inches, and setting up another vertical tube with a wye connection. (see new This semester the team modified the reactor design in order to improve its performance and provide an easy way to feed lime while the reactor is running. (see new lime feeder design) 

In the following experimental set-up with both new apparatus(A2) and old one(A1), the team tried to design a series of experiments in order to determine all the possible parameters which may influence the lime feeder's performance, all those parameters were based on Spring 2010 team's hypothesis (see hypothesis). In addition, from previous ANC team's proposal, it's very important to set comparison experiment to test each parameter separately, so the new team did all the experiments with a single comparable parameter as the principle in experimental set-up.

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