Abstract
This study mainly focused on enhancing the water absorption capacity of organic fibres to improve the performance of evaporative cooling pads. The enhancement involved immersing 10 g of Ensete fibre in different volumes of NaOH–water solution (for the cases of 0, 5, 10, and 20% NaOH and the remaining water). Saturation efficiency and predictive mean vote (PMV) were used to quantify performance assessment. The maximum saturation efficiency is 75.66%. The computed PMV for the hourly of 8:00 am through 5:00 pm ranges from –3.17 to –0.70 with much too cool in the early morning at 8:00 am comfortably cool at 9:00 am and 11:00 am and comfortable at 10:00 am, 12:00 am, 1:00 am, 2:00 am, 3:00 pm, 4:00 pm and 5:00 pm. Moreover, from 12:00 pm to 4:00 pm, they remained on the ASHRAE scale of thermal sensations, providing the best alternative to an evaporative cooling pad in the study area and similar air conditions for comfort applications.
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