Corrosion in Heat Exchangers

Heat exchangers are commonly used to transfer heat from steam, water, or gases, to gases, or liquids. Some of the criteria for selecting materials used for heat exchangers are corrosion resistance, strength, heat conduction, and cost. Corrosion resistance is frequently a difficult criterion to meet. Damage to heat exchangers is frequently difficult to avoid.                   There are many variables related to specifying heat exchangers -- for example, temperatures, flow rates, pressure drop and heat transfer -- …

…end plate. In the case of a multiple-pass design, connections also are found on the movable end. The plate heat exchanger is well known as one of the most efficient heat exchanger designs. Its basic concept - using corrugated plates for heat transfer - was introduced in the early 1930s for the food and dairy industry. Since then, plates have gone through tremendous development and now are used as standard equipment in many chemical processes.