Timber Seasoning (Junior Cert Wood Technology): Flashcards

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Kiln Seasoning
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Kiln seasoning

Drying wood in controlled environment (heat, air, humidity)

Moisture content

Amount of water in wood, important for strength and use

Pre-heating phase purpose

Slowly heats wood evenly without drying it yet

Kiln drying phase temp range

40°C to 70°C

Target moisture % in kiln seasoning

6-10% depending on wood's use

Conditioning phase purpose

Distributes moisture evenly, prevents problems

Hot air circulation function

Heats the wood quickly

Fans function in kiln

Spread air evenly to dry wood uniformly

Steam injectors function

Soften fibres to prevent drying issues

Vents function in kiln

Let out wet air and bring in dry air

Kiln seasoning time duration

1-3 weeks

Main disadvantage of kiln seasoning

High energy use and running costs

Compartment kilns characteristic

Dry large batches with controlled conditions for even results

Progressive kilns characteristic

Wood moves through different zones for ongoing operation

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