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IJSTR >> Volume 6 - Issue 10, October 2017 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Performance Testing Of A Modified Centrifugal Fan With Serrated Blade Impeller

[Full Text]



Zaimar, Mursalim, H. Abbas, Supratomo



Impeller speed, fan performance, fluid characteristic, performance test



Changes of shape, dimension, and component part of impeller might change of characteristic fluid flow so that pressure static in the fan housing changed. Changing some geometric characteristics of the centrifugal fan has more efficiency taking with energy crises into consideration. Several factors that can affect fan performance, namely: design and type, size, rotation speed, air condition or gas through a fan, operating point on the nature of the relationship between a volume of air flow and pressure. The purpose of this research was to test of fan performance of the modified centrifugal fan with the serrated blade impeller. The addition of a percentage of closing the inlet causes the air volumetric rate, the airflow energy, BHP and total efficiency (except for the fan total and static pressure). The experimental test results, there are static pressure data and the resulting total pressure is different or distorted (10-17% of deviation) from calculation data based on the fan laws. This is possible because of changes in the shape of the blade with serrated on the inside of the impeller. Based on the performance curve shows that the selection of impeller speeds of 800 RPM produces a relatively high air volumetric rate is proportional to the total pressure of the fan and the flow energy so that it is more efficient than other impeller speeds.



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