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Development of Convection Experiment Apparatus and its Applications
New Physics: Sae Mulli
Published online November 8, 2017;  
© 2017 New Physics: Sae Mulli.

Taekyu Kim*
Received September 26, 2017; Revised November 6, 2017; Accepted November 8, 2017.
Abstract
Convectional experiment apparatus had been developed so that convective experiments can be performed normally in the science class. The apparatus is composed of the convection box, the light source box, the object and the smoke box of the incense stick. The reproducibility of convective experiments was ensured by carrying out with the control of variables and quantification of measured values. The inclinations of the smoke flows of the incense stick were dependent on the size of convection box, the spacing of objects and the height, the height, position and depth of the ember of the incense stick. Also the inclinations of the smoke flows of the incense stick were affected by the flow speed of rising smoke and the differences between the surface temperature of objects and the temperature inside the convection box increase. The process in which the inclination of the smoke flow of the incense stick was changed and the direction of the smoke flow was reversed was continuously measured in accordance with changing the surface temperature of objects. The convection experimental device developed in this study can be utilized in experiments related to convection.


December 2017, 67 (12)
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