Canadian wood products industries . dsome Calendar \\ e are in receipt oi a very handsome calendar en-titled Lilies of the Valley from the Central VeneerCompany of Huntington, W. Va. Lilies of the Val-ley is a hand-painted water-color after the orijpainting by William Haskell Coffin. final If. ( W \ IMAN WOODWORK E R February, 1916 The Circulation of Air in the Dry Kiln H\ Harry Donald Tiemann, Madison, Wis,* rhc kiln drying of lumber is recognized by all whoarc engaged in woodworking as a very importantsubject. Mr. Tiemann alter considerable experiment-ing for the I . S. Government recommends
Canadian wood products industries . dsome Calendar \\ e are in receipt oi a very handsome calendar en-titled Lilies of the Valley from the Central VeneerCompany of Huntington, W. Va. Lilies of the Val-ley is a hand-painted water-color after the orijpainting by William Haskell Coffin. final If. ( W \ IMAN WOODWORK E R February, 1916 The Circulation of Air in the Dry Kiln H\ Harry Donald Tiemann, Madison, Wis,* rhc kiln drying of lumber is recognized by all whoarc engaged in woodworking as a very importantsubject. Mr. Tiemann alter considerable experiment-ing for the I . S. Government recommends the use ofthe Humidity Dry Kiln. It may be that other menthrough experience have found a different kind of kilnKeiter suited to their work. W e are always pleasedto receive communications from practical men en-gaged in the trade and some valuable ideas on kilndrying might be brought out in this way. May wehear from yon?—[Editor.] During the last year concentrated study has beenmade of the manner in which the air moves within the. Fig. 1.—Diagrammatic section of improved humidity regulated kiln truckwith spray flue in centre. dry kiln, and particularly within the pile of of the lumber at various points havealso been measured in this connection. The observa-tions have developed some valuable conclusions. Theimportance of this circulation within the pile has beengreatly emphasized. In fact, it is evident upon con-sideration that the humidities and temperatures insidethe piles of lumber are largely dependent is to say, the temperature and humidity withinthe kiln taken alone are no criterion of the conditionsof drying within the pile of lumber if the circulation inany portion be deficient. It is possible to have anextremely rapid circulation of the air within the drykiln itself and yet have stagnation within the pile, theair passing chiefly through open spaces and stagnation exists or the movement of air istoo sluggish there th
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Keywords: ., bookcentury1900, bookdecade1910, bookidcanadianwood, bookyear1916
