Press Release
Efficient heat recovery modules
The finishing and coating of fabrics is among the most energy-intensive steps in the
production of textiles stated Hans-Peter Prinzen, Head of R & D, A.Monforts
Textilmaschinen, in a recent VDMA presentation.
Energy costs account for a considerable portion of the production costs as significant
heating energy is required for drying, finishing and fixing processes.
Using a heat recovery system, part of the energy in the exhaust air can be used in a heat
exchanger to preheat the fresh air. Furthermore, the cooling of the exhaust air allows
finishing agents, oils and waxes to recondense and be separated; further aiding the
environment.
Without a heat recovery system, the hot exhaust air is released unused into the
atmosphere.
Monforts reacted to this situation several years ago and has developed three variants of
heat recovery systems:
The integrated heat recovery system for new Monforts ranges,
The ‘Energy Tower’ for retrofitting,
The ‘Eco-Booster’ with automatic cleaning for optimised production.
All three variants operate without the costly intermediate storage of the heat. The savings
effect is achieved by the direct heating of the fresh air.
Today integrated heat recovery systems form an integral part of the Monforts standard
product range.
Whilst new Monforts ranges generally have a heat recovery system that is integrated into
the existing range, there are still a large number of older Monforts ranges in operation
worldwide.
“It is for these plants that we have developed the Energy Tower,” said Hans-Peter Prinzen.
Energy Tower is a stand-alone solution that can be can be flexibly deployed – even on
third-party machines.
…continued
-2The Eco-Booster is an automated variant. This heat wheel cleans itself fully automatically
during the ongoing finishing process. The system does not become soiled, so there are no’
standstill’ times.
In the integrated heat recovery system, part of the thermal energy in the exhaust air is
recovered in low-maintenance tubular heat exchangers so that the fresh air preheated to,
for example, around 90°C. It then only has to be heated to 150°C.
As a result, the high drying temperature is reached more quickly and the energy
consumption is reduced. The energy savings can be as much as 30 %.
The Energy Tower is a stand-alone solution for retrofitting in machines that do not have an
integrated heat recovery system. Older ranges are still in operation in many facilities.
The Energy Tower as a retrofit module with low-maintenance tubular heat exchangers can
be flexibly deployed and functions even on third-party machines. It can be connected to
relaxation dryers, infrared predryers, hotflues, continuous dyeing ranges and condensation
ranges or retrofitted on existing stenter ranges.
The Eco-Booster is an automated solution for the production process. The heat wheel
allows computer-controlled optimisation of the heat exchanger output relative to the
prevailing exhaust air flow.
This optimised efficiency further reduces the process costs.
The Eco-Booster operates fully automatically so that the operator is relieved of all other
duties. ‘Standstill’ times for maintenance are also eliminated, as cleaning is performed by
an integrated high-pressure cleaner.
Compared with purely static heat exchanger modules, the new module cleans itself
independently during operation.
“We calculate precisely for the customer when the investment in a heat recovery system
has paid for itself,” said Hans Peter, adding, “Customers are often amazed that a payback is
achieved within two years.”
“But this should not be surprising. Energy is a major cost factor when it comes to textile
finishing. Two-thirds of the drying energy is used for evaporation heat.
“Up to 30 % of the heating energy can be saved with the Energy Tower or the Eco-Booster.”
As the energy costs are a significant factor in the drying process, that represents a
considerable saving.
…continued
-3The Eco-Booster also allows a higher availability of the range and increases productivity
thanks to its automated cleaning process. This again saves costs.
Furthermore, a heat recovery system ensures that no hot exhaust air is released unused
into the atmosphere; reducing the impact on the environment.
MON646A
FOOTNOTE TO EDITORS
This press release is available on the Joem Promotions website:www.joempr.com
Issued on behalf of Monforts by Joem Promotions.
For further information please contact:
John Hooper
Joem Promotions
Farthings, Hill Avenue, Shepherdswell, Nr Dover
Kent, CT14 7PA England
Tel: +44 (0)1304 830848
Email: john.hooper@joempr.demon.co.uk