Velocity and uniformity of air circulation in conventional kilns for sawn timber | Zendy

Branko Kolin | Zendy; Goran Milić | Zendy; Igor Golic | Zendy

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Velocity and uniformity of air circulation in conventional kilns for sawn timber

Author(s) -

Branko Kolin,

Goran Milić,

Igor Golic

Publication year - 2012

Publication title -

glasnik sumarskog fakulteta

Language(s) - English

Resource type - Journals

eISSN - 2217-8600

pISSN - 0353-4537

DOI - 10.2298/gsf1206129k

Subject(s) - kiln , air velocity , wood drying , environmental science , circulation (fluid dynamics) , air temperature , water content , pulp and paper industry , moisture , waste management , environmental engineering , engineering , materials science , meteorology , composite material , geography , geotechnical engineering , mechanics , physics , aerospace engineering

This paper presents the results of a research of velocity of air circulation in the conventional kiln drying of sawn timber and its influence on the uniformity of final moisture content. The data showed that the air velocity (between 0.8 - 1.2 m•s -1) is significantly lower than the one that is optimal for timber drying of coniferous species (3 - 4 m•s-1). This results in a reduction in the capacity of installations for drying, increased energy (thermal and electrical) consumption and thereby increase in the cost of drying. The correlation between the speed of air circulation and the final MC of timber due to prolonged drying was not established. Recommendations that should eliminate the identified deficiencies are also given

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