Sonawan, H; Sofia, E and Ramadhan, A (2022) Assessment of direct evaporative cooler performance with a cooling pad made from banana midrib and ramie fiber. Smart and Sustainable Built Environment, 11(3), pp. 469-482. ISSN 2046-6099
Abstract
Purpose: The paper aims to apply Buckingham Pi dimensional analysis method for assessing direct evaporative cooler performance with a cooling pad made of banana midrib and ramie fiber. The saturation efficiency acted as the indicator performance of the evaporative cooler. Design/methodology/approach: The paper describes an experimental study of the direct evaporative cooler with a cooling pad made of banana midrib and rami fiber. There were six parameters in the experiment: absorbed water as a dependent variable was affected by independent parameters such as air velocity and temperature, cooling pad cross-section area and thickness. Based on these variables, we arranged three dimensionless numbers and their correlation. Findings: The paper provides three calculated dimensionless numbers plotted on a curve with a specific correlation. The curve trends for 30 mm and 50 mm pad thickness were almost similar. The range of Reynolds number for 10 mm pad was narrower than other pad thicknesses. The thicker the cooling pad, the more extensive was the calculated Reynolds number range. A new curve exhibited the relationship between the evaporation rate with the μA/t number. The broader cooling pad cross-section, the thinner pad thickness, and the lower pad temperature were factors that increased the evaporation rate, even though the increase was less significant. Originality/value: A new material in cooling pad from banana midrib fiber was tested and compared to ramie fiber and conventional cooling pad.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | and rami fiber; banana midrib; cooling pad; dimensionless number; direct evaporative cooler; evaporation rate |
| Index terms: | thickness, experiment, methodology, dependent variable, Reynolds number, efficiency |
| Subjects: | fluid mechanics, materials science, data collection methods, statistical analysis, performance management, research methods |
| Topics: | Quality Management, Research Practice, Engineering Principles |
| Descriptive scope: | 5 PCTEA |
N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here