Friday, July 19, 2019
The Most Suitable Material for a Backpackers Towel :: Backpacking Towels Essays
The Most Suitable Material for a Backpacker's Towel    Chemistry: Data Analysis for the most suitable material for a  backpackerââ¬â¢s towel.    Method  ======    In groups, we tested three different types of material (named pale  blue, dark blue and brown) to find out which one would be more  suitable as a backpackerââ¬â¢s towel. The criteria that would make a good  backpackerââ¬â¢s towel would be aspects such as a low density, high  absorpancy, rapid drying etc.    We weighed the fabric before wetting it and weighing it again. We then  hung it on some suspended string and let a rotating fan dry them for  fifteen minutes. After this time was up, we weighed the materials  again in order to work out the drying rate, the absorpancy and the  amount of water lost. We then recorded our results in a table  (displayed further on) and analysed these to come to a conclusion.        The formulas I used were as follows:    Absorbency ââ¬â wet towel mass ââ¬â dry towel mass/dry towel mass    Water Lost ââ¬â Wet mass ââ¬â Dry mass    Drying Rate ââ¬â (Water Lost/Time [15]) x 60 to give [g/hr]    Density ââ¬â Mass Dry/Area to give [g/cm squared]    Interpretation  ==============      Part of the criteria that adds to what makes a backpackerââ¬â¢s towel is a  high absorbency. The graph shows that the Pale Blue fabric had the  highest absorbency and no anomalies, indicating accurate results. The  least absorbent fabric is the brown.    The Pale blue fabric absorbency ranges from 2.1 to 4.2. The Dark Blue  fabricââ¬â¢s absorbency ranges from 1.7 to 3.2 with one higher anomaly and  the brown fabricââ¬â¢s absorbency ranges from 1 to 2.9, with one higher  anomaly.    What also makes a good backpackerââ¬â¢s towel is rapid drying, i.e. a high  drying rate. The fabric with the highest drying rate is, again, the pale blue one. The ranges I have devised on both graphs do not include the anomalies, and I will go further into this in my evaluation. The pale blue data for drying rate shows a very high  anomaly and a very low one, with the data taken into consideration  ranging from 14 to 52.5. The Dark Blue fabric ranges from 12.5 to  39.5, with two higher anomalies and the brown fabric ranges from 18.5  to 42.5 with 1 anomaly.    To summarise, the brown fabric had the lowest absorbency, then the  dark blue and then the pale blue. The dark blue fabric had the lowest  drying rate, then the brown fabric and then the pale blue fabric.    To conclude, the pale blue fabric was identified, from interpreting my  graphs, as the best fabric for a backpackerââ¬â¢s towel, so at this point  the pale blue fabric would probably be better that the dark blue and    					    
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