Comparative Performance Evaluation of Evaporative Cooling Local Pad materials with Commercial Pads

Comparative Performance Evaluation of Evaporative Cooling Local Pad materials with Commercial Pads

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
  
© 2016 by IJETT Journal
Volume-39 Number-4
Year of Publication : 2016
Authors : K.V.Vala, M.T. Kumpavat, Dr. A. Nema
DOI :  10.14445/22315381/IJETT-V39P234

Citation 

K.V.Vala, M.T. Kumpavat, Dr. A. Nema"Comparative Performance Evaluation of Evaporative Cooling Local Pad materials with Commercial Pads", International Journal of Engineering Trends and Technology (IJETT), V39(4),198-203 September 2016. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

Abstract
In this study, a special test setup was designed and fabricated to evaluate the performance of different pad materials. The pads were evaluated for their temperature drop, increase in relative humidity inside the storage chamber. For this purpose, the tests were carried out for four different pad materials; CELdek pad, aspen pad, coconut coir and wood savings. The air velocity, water flow rate and pad thickness was kept 11.6 ms?1, 3lpm and 100 mm for all the pad materials. During the tests outside air conditions were 28°C to 35°C and 33-67% relative humidity. The study was taken to compare the local cheaply available pads with commercially pads. Average drop in temperature was 8°C and 9.75°C was observed with Celdek and wood wool respectively. While coconut coir and wood saving pads showed temperature drop of 3.5°C and 3.25°C respectively. The percentage drop in temperature with CELdek and wood wool was 40% and 43% higher as compared to wood savings and coconut coir respectively. The RH inside the storage chamber was maintained above 80% in all pads.

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Keywords
Evaporative cooling, Saturation Efficiency, Relative Humidity, Wood Savings, Coconut Coir.