Variasi Tulisan Cerpen Yang Ditulis PengarangVariasi Tulisan Cerpen Yang Ditulis Pengarang - Variations Writing Short Story Written Author - One disadvantage of tubular heat exchangers and plate-type heat transfer coefficient is relatively low, which is only able to reach a maximum of 60%. This is because the comparative figures heat transfer surface area per unit volume is low, less than 700 m2 / m3.
So one way to improve the efficiency of heat transfer is by increasing the surface area of heat transfer, namely by using fins. The basic principle is, (1) the presence of these fins, the contact surface of the heat transfer wider thereby increasing the heat transfer efficiency; (2) on the fluid flow, with their fins.
This then fluid flow will be slightly delayed so we get the time to transfer heat longer and effective. Here are two kinds of design heat exchanger with fins: With Fin Heat Exchanger Plate. Heat exchangers of this type is a modification of the plate-type heat exchangers are given extra fins. The principle of the design is the use of fin-shaped triangle or box to be placed in between two parallel plates.
One application of the plate fin heat exchanger we can see in the picture above, which is a heat exchanger that serves to change the refrigerant gas to be returned to the liquid phase cooling medium air. At present there are two forms of the condenser fins, the first small-sized and mounted parallel to the longitudinal length of the plate.
The side of the refrigerant fluid into the flow path. The fins are both larger triangular shaped and mounted between two plates that drain the refrigerant. Air as the cooling fluid flowing through the fins of the triangle and create a flow that is perpendicular (cross-flow) with the refrigerant flow.