| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 492839 | Procedia Technology | 2014 | 8 Pages |
In the present work, a thorough experimental investigation was carried out to analyze the combined effect of coating and header combination on the pressure drop characteristics of microchannels, by using deionized water as the coolant for mass flow rate range of 50 – 120 kg/hr and a Reynolds number range of 200 - 600 in an Aluminium microchannel rectangular heat sink with 25 number of parallel rectangular microchannels. The microchannel, made of aluminium, was copper coated by using electro co-deposition technique. Pressure drop experiments were carried out on both the bare microchannel and copper coated microchannel for three different header combinations. The various cross sectional shapes used in this micro channel are triangular shaped header, trapezoidal shaped header and rectangular shaped header. It was found that the coating increases the pressure drop. Among various header combinations considered in the present experimental work, increase in pressure drop penality is less in trapezoidal header combination than other two header combinations viz. rectangular and triangular header combinations.
