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Resource consumption and emissions induced by logging machinery in a life cycle perspective

Athanassiadis, Dimitris (2000). Resource consumption and emissions induced by logging machinery in a life cycle perspective. Diss. (sammanfattning/summary) Sveriges lantbruksuniv., Acta Universitatis Agriculturae Sueciae. Silvestria, 1401-6230
ISBN 91-576-5877-3
[Doctoral thesis]

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Abstract

This thesis summarises and discusses results from four separate studies on energy and resource consumption and emissions during the life cycle phases of harvesters and forwarders i.e. logging machinery in the cut-to-length harvesting system. Energy input during operation was 82 MJ/m3ub, 11% was due to energy consumption during the production phase of the fuel. Exhaust emissions varied considerably depending on the kind of fuel that was examined (rapeseed methyl ester, environmental class 1 and environmental class 3 diesel fuels) and on whether emissions produced during the production phase of the fuels were taken into consideration. It was also estimated that 351/1000 m3ub of chainsaw oil was used for felling and crosscutting while hydraulic oil spillage from both harvesters and forwarders was 201/1000 m3ub. On the subject of spare part replacement, it was estimated that 52% of the mass of a forwarder would be replaced during its operational lifetime while the corresponding figures for the single- and two-grip harvesters are 56% and 50%, respectively. The manufacturing phase of the forest machinery was found to contribute only modestly to the total environmental impact of timber harvesting and terrain transportation (measured per unit of timber production). Six percent of the machinery’s life cycle energy consumption was due to activities connected with the production of the vehicles; raw material acquisition and intermediate processing, fabrication of individual components, assembly of the vehicles, and associated transports.

Authors/Creators:Athanassiadis, Dimitris
Title:Resource consumption and emissions induced by logging machinery in a life cycle perspective
Year of publishing :2000
Number:143
Number of Pages:28
Publisher:Swedish University of Agricultural Sciences
ISBN for printed version:91-576-5877-3
ISSN:1401-6230
Language:English
Publication Type:Doctoral thesis
Article category:Other scientific
Version:Published version
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
Keywords:harvesters, forwarders, life cycle assessment, life cycle inventory, energy consumption
URN:NBN:urn:nbn:se:slu:epsilon-p-107949
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-107949
ID Code:17680
Faculty:S - Faculty of Forest Sciences
Deposited By: SLUpub Connector
Deposited On:05 Oct 2020 10:15
Metadata Last Modified:06 Oct 2020 09:00

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