What is a Brazed Plate Heat Exchanger?
A Brazed Plate Heat Exchanger is made by pressing a series of thin corrugated stainless steel together and brazed with copper or nickel. The soldering material is then melted in a vacuum furnace to form a seal between each of the plates. This brazing process seals the plates together making extremely durable and allows the Braised Plate Heat Exchanger to perform under high working pressure and temperatures.
The spaces in between the plates become flow channels with one fluid flowing in odd number channels and the other in the even number channels. Heat exchange occurs through the designed plates over a large surface area making Radian's Brazed Plate Heat Exchangers very efficient. Nearly all of the material is used for heat transfer making it also very compact and cost-effective.
Plate patterns are designed for performance with respect to your application. Special consideration is given when designing the width of chevron angles and height of curvature of the individual plates. Plate patterns cause high turbulence flow which significantly reduces fouling and increases heat transfer performance. After decades of research and development, Radian Thermal Products has optimized plate patterns for specific applications and continues to find innovative ways to increase performance while minimizing pressure drop.
Standard Brazed Plate Heat Exchangers have single pass flow pattern where the working fluid flows in a single direction through the unit. A multi-pass arrangement is where working fluid can change its flow path and is sometimes used for low flow rates or extremely close temperature approaches.
Our modeling software helps us define the best solution to fit your application considering variables for liquid type, number of passes, flow rate, temp differential, pressure, dimensions and much more. Below are examples of some typical applications.