The study of heat transfer by flowing two-state (two-phase flows) using air and water as a substance in the water and air mixed with the mixer shape y run through pipe micro-channels are 21 channels. There is a rectangle with a length of 40 mm. In the flow direction each channel has the width and depth of 0.45 0.41, respectively. We can observe by flow patterns through a microscope and capture flow patterns. The micro channel are placed in inclined (Inclined channels) with a angle at 90, -90, 45 and -45 degrees.