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

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
kuitupuu; mänty; puutavaranmittaus; koivu; kuorinta; pinotilavuus

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

Published in 1979

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