Study of pressure drop and heat transfer characteristics of mini-channel heat sinks

الملخص EN

Predictions on micro-scale of heat sinks beneath the conditions of heat flux was implemented to study the properties of heat transfer.

A copper plate with dimensions of (50mm* 50mm) and (10 mm) in thickness, was subsequently developed as a square plate heat sinks along with 25 mini-channel.

Each channel has (1 mm) height and (1 mm) width using a machine on wire of electrical evacuation.

Effects of various heat sinks factors, such as the mini-scale of complex sinks and heat flow of heat transfer properties were considered.

An iteration process by excel software was used to obtain the wall and the fluid temperatures, the Reynolds number at the inlet and outlet of the channels, the coefficient of heat transfer, and the pressure drop.

The predictions were implemented for the Reynolds number and pressure drop in the ranges of (1014.

23-3272.56) and (1.90-11.66) mbar, respectively as well as the results for inlet and outlet Nusselt number ranges (4.27-5.75) and (3.92-4.92) respectively.

The studied mechanism of heat transfer for micro-scale of complex geometry showed that the micro-scale arrangement has a substantial effect on the enhancement of heat flow of transmission parameters, so that the results of these investigations are expected to be used in the design of mini-heat exchangers used in electronic devices.

Air data were obtained using suitable heat transfer equations which are very comparable to real lab tests under steady-state conditions.