Heat Exchange
Heat exchange, also referred to as heat transmission or heat transfer, consists in reducing temperature differences within a single body or between two separate bodies. Heat transfer always occurs from a region of higher temperature to a region of lower temperature. The process continues until thermal equilibrium is achieved.
In fact, heat transmission proceeds in two or three ways simultaneously. Usually, it takes place through conduction and convection. Heat exchange often occurs between two bodies separated by a wall and then it is called heat penetration.
Heat transfer is facilitated by devices called heat exchangers (link to heat exchangers). Generally, their work consists in one medium changing its temperature under the influence of another medium (heating medium or coolant). The two media are separated by a solid wall and the entire system is enclosed within an isolation mantle (the gap between the workspace and the isolation mantle being filled in with mineral wool) in order to minimize any heat loss.
The most popular heat exchangers produced by KATES are:
- tubular heat exchangers
- heating jackets or heating and cooling jackets in tanks, mixers
- systems for heating the medium in a heating jacket by use of heaters, heat exchangers
- systems for cooling the medium in a cooling jacket by use of chilled water, glycol solutions
In selecting a device, very important parameters are the initial temperature of the product and its final temperature we want to achieve, as well as the time in which the process is to be completed. Other important factors include the physiochemical properties of a given product and the technological media available for feeding the heat exchanger.