Utilizing recovered air in the chamber dryer – possibilities and limitations

Compared to continuous dryers, chamber dryers have the energy drawback that the drying air supplied is not fully saturated when it is discharged from the process.

Already very early on, dryer designs and operating principles were developed to feed the drying air through more than one drying chamber, lowering the air required accordingly. Whereas operation of the first systems, with rigid operating cycles, could still be controlled, today this is no longer possible with the random setting sequences in the dryer chambers, varying drying times and different drying programmes.

Providing certain...

Related articles:

Issue 6/2011 In remembrance of Dr.-Ing. Karsten Junge

In remembrance of Dr.-Ing. Karsten Junge Comparison of designs and economic efficiencies of air circulation systems in dryers (Part 2)

6 Conventional air circulation systems for roof tiles Rotary fans or air walls are also employed in roof-tile dryers of conventional design. Unlike air wall dryers for masonry bricks and clinkers,...

more
Issue 3/2019 Stefan Falkner, Karl Ponweiser

Modelling, simulation and validation of brick drying in a laboratory chamber dryer

1 Introduction Convective drying is a very energy intensive process, because the latent evaporation enthalpy required for removing the entire moisture content must be supplied. Also, convective dryers...

more
Issue 5-6/2010

Recent experience with low-energy drying of backing bricks

1 Introduction If you ask a brickyard owner from South Africa how much it costs to dry bricks, he will tell you how much he has to pay a lot of people to cover the bricks with protective sheeting...

more
Issue 11/2009

Concepts for reducing exhaust air loss from dryers in the brick and tile industry

1 Dryer exhaust air as the greatest energy consumer in brick manufacturing More than half of the energy required altogether for brick manufacturing is used for drying the green products. This is...

more
Issue 5/2011

Comparison of designs and economic efficiencies of air circulation systems in dryers (Part 1)

In remembrance of Dr.-Ing. Karsten Junge

1 Introduction All kinds of bricks and tiles (clay masonry units) are still being dried by means of air circulation in convection dryers. Thus, the air circulation system constitutes the dryer‘s core...

more