Heat transfer in magnetic stirring

Heat transfer involves the transfer of energy between two bodies, whether solid, liquid or gaseous. The warmer body transfers energy, i.e. heat, to the colder body. When two bodies have the same temperature, they are considered to be in thermal equilibrium.

This transfer, inducing a change in body temperature, is achieved at the microscopic level by means of magnetic stirring in many industrial fields requiring, among other things, dissolutions, homogenizations and chemical reactions.

Conduction, convection and radiation are modes of heat transfer for heating or cooling the mixture of a product.

In the case of conduction transfer, the exchange of energy takes place without displacement of matter, in contrast to convection transfer where a macroscopic displacement of thermal energy takes place through the movement of particles.
 

MARLLIN's expertise in the field of heat transfer is historical.

The bottom magnetic stirrers type AGM-FC were pioneers in the field of heat exchange.

MARLLIN engineers, at the forefront of science and technology, have developed numerous solutions to meet the specific situations of different industries.

The design of the AX1 propeller has also been thought out for heat exchange. This agitator has the highest head and low shear rate.  

The MARLLIN range of anchors offers a wide choice of models according to the needs of industrial applications. They are all designed for heat transfer.

The tubular anchor, mobile with tangential flow, is suitable for complex products with high viscosity. Its clean design makes it ideal for use in the cosmetics, pharmaceutical and biotechnology industries.

The flat anchor is a tangential flow mobile ideal for products with simple behaviour and intermediate viscosity. The inclined flat anchor is a material suitable for products with intermediate viscosity, containing solid particles that tend to sediment. Their use offers great benefits in the fields of food and fine chemistry.

The helical anchor combines a ribbon with a tubular anchor. This mobile with tangential and axial flow enables a homogeneous mixture of viscous products sensitive to shear to be obtained, meeting the needs of the pharmaceutical, food and cosmetics industries.

Finally, the anchor with scrapers is made for the heat exchange of high viscosity products with a tendency to stick or burn in the walls. It is a suitable choice in the fields of cosmetics and perfumery, among others.