The rod-baffle condenser is a new type of shell-and-tube heat exchanger. In the present paper

a method for calculating heat transfer coefficient of the shell-side condensation of vapor mixture is proposed according to the structural characteristics of the rod-baffle condenser and experimental verification is given. The rod-baffle condenser can be classified into circular and rectangular types. The circular one consists of 9 rod-baffle rounds and 37 tubes φ19×2 mm in size. The rectangular one consists of 10 rod-baffle rounds and 14 tubes φ25×2.5mm in size. In the front of the shell there are 5 glass windows for observing flow pattern during condensation. The working media in the experiment are ethanol-water

gasoline and gasoline-nitrogen systems. In the gravity-controlled region and transition region

the differences between calculated values and theoretical values are less than 32%.