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Matti Kärkkäinen

Pinotilavuusmääräinen kuorintahäviö koneellisesti ladotuissa pinoissa.

Kärkkäinen M. (1979). Pinotilavuusmääräinen kuorintahäviö koneellisesti ladotuissa pinoissa. Silva Fennica vol. 13 no. 2 article id 5034. https://doi.org/10.14214/sf.a14891

English title: Barking loss of mechanically loaded piles.

Abstract

In this study the loose volume of 58 piles of pulpwood were measured before and after barking by rotary ring barker. The volume was 2,121 m3. A recommendation is made, based on the results of the study, concerning the barking loss from piled wood: for green Scots pine (Pinus sylvestris L.) pulpwood, 8.8% of the stacked volume; for seasoned pine pulpwood, 6.1% of the stacked volume; and 8.0% for birch (Betula sp.) pulpwood, green and seasoned. The amount of bark left on bolts was small for pine bolts, namely 0.33%, but quite large for birch bolts, 2.84% of the green weight.

The PDF includes a summary in English.

Original keywords
kuorinta; pinotilavuus; puutavaranmittaus; kuitupuu; mänty; koivu

English keywords
debarking; piled volume; Scots pine; birch; pulpwood; stacked volume; barking loss

Published in 1979

Available at https://doi.org/10.14214/sf.a14891 | Download PDF

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