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| 07/07/2011 |
| SUMMER HOLIDAYS |
INCOMAC will be closed for summer holidays from 8th to 19th of August.
The offices will open on Monday 22nd of August.
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| 27/06/2011 |
| INCOMAC HEAT RECOVERY SYSTEM |
Crossed flow system
During the wood drying process, in addition to the heat necessary to make the wood water evaporating, it is necessary to supply also the heat lost through the walls, the roof and the floor of the drying kiln.
For this second reason, it is important tha the kiln has high thermal insulation characteristics.
By the way, the main heat losses are through the dampers, that are installed usually on the roof, through the dampers, the hot saturated air inside the kiln is ejected outside and fresh air is taken from the outside.
Especially during the winter season, the heat lost is considerable, the heat has to be continuously supplied inside the kiln, as it is necessary to keep a constant temperature inside to allow the wood water evaporation.
Therefore, it is very important to install on the roof, instead of the dampers, an "Heat Recovery System" for wasting less energy.
The Heat Recovery System permits to pre-heat the air coming into the kiln, trough the heat of outgoing air. The ejected air is saturated of steam, while, the incoming air, has a humidity, and a temperature noteworthly lower, so it contains a little quantity of steam. It is possible to use these differences to recover the heat contained in the outgoing air and in the steam ejected and to transfer it to the incoming air at low temperature.
An appropriate device, called "Incomac Heat Recovery System", has been designed to reach this purpose. The free air circulation input/output through the dampers has been eliminated, and all air is canalized into an obliged way, through an air-air heat exchanger.
In the picture it is possible to see the "Heat Recovery Device", crossed flow system, installed on a drying kiln roof. The arrows indicate the hot outcoming air, that is sucked from the wet zone under the sub-ceiling, and the fresh incoming air that is injected over the sub-ceiling, in the ventilation zone.
The fans push this air in circulation inside the kiln. The heat exchanger, installed inside the device, absorbs the heat of the outgoing air and transfer it to the incoming air. In other words the outgoing air is colder, and the incoming cold air enters in the kiln warmer and with a lower relative humidity (more dried).
The heat recovery is estimated, in average, at 30%. But during the winter season, when the outside temperature is lower, the heat recovery is higher.
On the contrary it is lower during summer season, but also the consumptions are lower.
The advantages of the Heat recovery system are the followings:
1. The heat contained in the steam saturated air in output, is partially recovered, as part of the steam condenses on the exchanger leaving the heat taken during the evaporation.
2. The cold incoming air is heated and then its relative humidity decreases. Then this air enters inside the kiln with a higher efficiency and can absorb immediately more water, allowing the water in the wood to evaporate faster and also the drying time will be shorter.
3. When the kiln is already in temperature (60 ÷ 70°C), if cold air is incoming, the inside temperature slows down, this influences the drying process prolonging the drying time.
But this doesn't happen if the heat is recovered and the fresh incoming air in warmer. Also the drying time will be shorter.
4. As drying time get shorter, two other targets are achieved: higher drying productivity and less electrical energy consumption, because of the reduced working time of the fans.
5. The outgoing air will be with lower temperature, this reduces the atmosphere heating, with benefits for the reduction of the greenhouse effect.
FORE MORE INFORMATION CONTACT INCOMAC SALE DEPARTMENT |
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| 24/05/2011 |
| NATIONAL HOLIDAY |
| INCOMAC will be closed on 2nd and 3rd June for NATIONAL HOLIDAY. |
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| 21/04/2011 |
| “LIGNA 2011” HANNOVER 30 MAY/3 JUNE |
INCOMAC looks forward to meet you at our stand D13, Hall 13.
We are waiting for you!
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| 09/03/2011 |
| PUBLIC HOLIDAY |
INCOMAC will be closed on 17th March for Public Holiday.
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