Heat transfer, more commonly just called heat, is an exchange of thermal energy between two bodies at different temperatures, in order to obtain molecular evolution and thermal equilibrium between them. It corresponds to a chaotic microscopic energy transfer. The three fundamental heat transfer methods are conduction, convection and radiation.

A fundamental concept of thermodynamics, heat transfer refers to a thermal exchange between two bodies, whether liquids, solids or gases, in order to obtain a thermal equilibrium between them through their molecular evolution.
It is therefore a process of internal energy exchange.

 

Heat transfers are carried out by conduction, convection or radiation and allow the heating or cooling of a product mixture in a tank. The level of heat exchange depends on different parameters such as the stirring speed or the structure of the mobiles used for the agitator equipment.
Heat transfer can only take place from the hot source to the cold source and is irreversible.

 

Thermal conduction is adapted to fluids and solids, the transfer of the kinetic energy of the molecules being done without matter exchange, contrary to convection where the exchange of matter is carried out between leaks, liquids and gases by a movement of the particles.

 

In the industrial fields of agitation, thermal exchanges are mainly used for dissolutions and homogenizations, or to create a chemical reaction and/or a specific physico-chemical transformation.

 

The chemical, pharmaceutical, food or cosmetics industries produce, use or transform complex fluids on a daily basis via the heat transfer process. More generally, these are fluids with high or very high viscosity, but also with intermediate viscosity for products with simple behaviour or containing solid particles.

 

Heat transfer operations are carried out in tanks with stirrers equipped with mobiles such as turbines, propellers or anchors, which often prove to be the most suitable for this process.

 

Thus, Agitec offers a whole range of anchors such as the flat and inclined flat anchor for products of intermediate viscosity, the tubular anchor for complex mixtures with high viscosity, up to helical anchors or with scrapers for the homogenization of mixtures with very high viscosity.

Equipment adapted for the application: Heat transfer :

Propellers


Ax1
stirrer propeller high hydraulic lift
Ax1 propeller for stirrer, hydraulic lift, optimized shear
stirrer propeller mixtures of shear-sensitive products
Marine propeller for agitator, for shear sensitive products
Ax2
stirrer propeller high speed shear dissolution
Ax2 propeller for stirrer, pumping and shearing
Ax4
stirrer propeller liquid mixture containing fibers
Ax4 propeller for stirrer, liquid mixtures with fibers

Turbines


auto-aspirating turbine with double discs and vertical plates
Self-suction turbine for stirrers maixers, dispersion gas liquid stirrer
stirrer turbine starting mixtures in decantate
Stirrers Turbine with 2, 3 or 4 blades at 45°, Axial/radial flow

Anchor


helicoidal anchor heat exchange
Manufacturer of helical anchors for mixers stirrers
stirrer tubular anchor heat exchange
Manufacturer of tubular anchors for mixers stirrers
stirrer anchor scrapers
Manufacturer of anchors and scrapers for mixers
stirrer inclined flat anchor heat exchange
Manufacturer of anchors plates for stirrers mixers
stirrer anchor flat anchor heat exchange
Manufacturer of flat anchors for mixers stirrers