The importance of the film temperature in the boiler life

THERMAL OIL HEATERS

Used in zones where the supply of natural gas, gasoil or fuel oil is easy.

They realize a warming of thermal oil in closed circuit.

They yield heat for convection to consuming machines inside a productive process.
ELECTRICAL HEATERS AND BOILERS

They contribute heat by means of electrical resistances of very low density.

Performance of 100 % of the emaciated energy.
WASTE HEAT RECOVERY UNITS

Used in the installations of cogeneration.

They take advantage of the latent heat in the gases of combustion of engines, turbines, incinerators,...
HEAT EXCHANGERS

- Vaporizer: used for small consumptions of steam in facilities of thermal oil.

- Interaccumulator waters down warmly: warm water tank sanitary in facilities of thermal fluid.

- Interchanger oil - oil: warming of vegetable(plant) oils with thermal oil.

The importance of the film temperature in the boiler life

The film temperature is an important parameter in the design of the boiler. The durability of the boiler and the installation dependent on this one.

It is defined as the oil temperature at the inner surface of the coil tubes. The DIN 4754 standard provides its calculation. The most important parameters are:

Oil type.
Oil speed.
Dimensions of the coil.
Dimensions of the combustion chamber.
Heat flux.
Type of fuel.

This temperature should be low, uniform and stable.

Temperature curve in a tube (DIN 4754:1994-09)

PIROBLOC obtains film temperature values lower by coil design and optimized combustion chamber.

Manufacturing boilers with high performance and durability.