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SECOVAC

International

Where the lumber drying art becomes a science

 

The latest technological breakthrough in wood drying

 

  • Net improvement of the wood quality and homogeneity by non-aggressive low temperature drying

  • Shorter drying schedules by up to 25% for  increased drying capacity

  • Significatively reduce energy consumption

  • Easily installed on existing kilns

 

Take advantage of the performance of the Kiln Booster™ technology

wich decreases time and energy costs

 TECHNOLOGICAL BREAKTHROUGH OF THE 21st CENTURY 

The Kiln Booster™ has been designed to maximize heat transfer in the dry kiln in order to dry at low temperature while reducing the drying time compared to higher temperature schedules.  Field tests show that using the Kiln Booster™ system results in a drastic improvement of the quality of the dried lumber and a reduced energy consumption.

 

The Kiln Booster™ (patent pending) is a revolutionary system designed to:

        Dry lumber at low temperature
        Maximise heat transfer in the dry kiln
        Radically improve the quality of dried lumber
        Reduce drying time of traditional schedules
        Significantly reduce energy consumption

 

Experience has shown that the drying time at low temperature with the
Kiln Booster™ is typically shorter than that of a conventional drying
and of reduced energy consumption.

The lower drying temperature decreases significantly the drying defects and prevents darkening of the lumber. In practice, lumber dried with the  Kiln Booster™ has no drying defects.

Well regroup humidity histogram with a standard deviation of 2.2 obtained with the use of a Kiln Booster™.

  • Experience has shown that even when the load to dry consists of different species and initial moisture contents, the use of the Kiln Booster™ reduces moisture variations of the wood resulting in homogenous moisture and less “kiln wet”.

  • The Kiln Booster™ system was designed to maximize heat transfer thereby increasing the drying capacity and reducing energy costs while dramatically improving the quality of dried lumber.

  • The control of the drying cycle is done by the existing control system and the schedules will be modified according to the recommendations of SÉCOVAC with the assistance of the operator in order to reduce the drying temperatures.

 OPERATING PRINCIPLE 

The Kiln Booster™ system does not control the drying cycle. The Kiln Booster™ is easy to install and designed to adapt to existing control systems. The Kiln Booster™ system can simply be turn ON manually when the drying begins and switched OFF at the end of the drying cycle. Use the SÉCOVAC control software integrated to the Kiln Booster™ system for a fully automatic process.

 

The Wave Generator, consisting of an electronic circuit (patent pending) located in the panel, on the wall outside of the kiln, transmits an electromagnetic wave through the antennas.

 

A pair of antennas are installed inside the kiln to cover it's full length and connected to the Wave Generator by a wire going through the thru-wall fitting.

 TYPICAL SCHEDULES USED BY THE KILN BOOSTER™ 

Kiln Booster™ typical schedule for spruce.

Kiln Booster™ typical schedule for fir.

 CALCULATION OF THE PAYBACK PERIOD 

The annual monetary gains of a Kiln Booster™ can be calculated as:

T1 = annual average length of a drying schedule before the Kiln Booster™ (hours)
T2 = annual average length of a drying schedule after the Kiln Booster™ (hours)

C = dry kiln loading capacity (fbm)
P = Gross Profit per 1,000 board feet of dry wood ($)
G = annual monetary gain based on 8,400 hours of operation ($)

G = 8.4 x {(T1 - T2) ÷ (T1 x T2)} x C x P

For example, for an average length of drying schedule of 55 hours that is reduced to 40 hours for a dry kiln of a capacity of 250,000 fbm with a gross profit of $ 20 per 1,000 board feet this gives an annual gain of $ 286,364:

$ 286,364 = 8.4 x {(55-40) ÷ (55 x 40)} x 250,000 x 20