Abstract
In this paper the microchannel setup to study longitudinal conduction phenomenon was developed and tested. Circular microchannels, 18 in number (hydraulic diameter = 400±09μm, Length=40±0.4 mm) were manufactured using EDM process in square piece made of stainless steel material to study forced convection using water and ethanol as coolant. The setup was tested under uniform heat flux conditions for the identification of backward conduction phenomenon. The test rig was also able to reproduce the data. The temporal variations observed in coolant temperatures during transient conditions at various locations provided encouraging results. Rise in the temperature of the coolant at the inlet location for various experimental conditions was observed. Higher degree of axial conduction was observed in ethanol relative to water.
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