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The long bundler. Development and testing of a machine for bundling of small trees; Laangbuntaren. Framtagning och testning av en maskin foer buntning av klena traed

Technical Report:

Abstract

Compression and bundling forest fuels into suitable units is an alternative to chipping. Bundling can be expected to be associated with considerably better storage possibilities, due to more thorough drying and lowered risk for microbial decomposition. To test the potential of bundling, as well as to explore the handling and storage characteristics of bundles, a test rig - ``Long Bundler`` - was developed which produces bundles with a length of 3 meters and a diameter of 30-40 cm. The bundling process was designed as an almost continuous flow of material through the machine, from feeding of raw material, through compression and binding, to cross-cutting of the finished bundle. The report describes the development of a test rig, time studies of bundling with manual feeding in clearing stands, studies of transport with a conventional timber truck as well as storage and burning of bundles. The produced bundles had an average weight of almost 110 kg which corresponds to 0.114 m{sup 3} (solid) biomass per bundle. The percentage of solid volume was calculated to 37.7 per cent. With one person manoevring the machine and another dragging and loading the clearing wood (diameter 3-5 cm), a performance of 10-12 bundles per work-hour was  More>>
Publication Date:
Dec 31, 1991
Product Type:
Technical Report
Report Number:
SLU-ST-UPPRLT-222
Reference Number:
SCA: 090800; PA: SWD-92:007305; SN: 93000918383
Resource Relation:
Other Information: DN: With 2p English summary; PBD: 1991
Subject:
09 BIOMASS FUELS; FORESTRY; HARVESTING EQUIPMENT; WOOD FUELS; FIELD TESTS; MATERIALS HANDLING; 090800; PRODUCTION
OSTI ID:
10113685
Research Organizations:
Swedish Univ. of Agricultural Sciences, Garpenberg (Sweden). Dept. of Operational Efficiency
Country of Origin:
Sweden
Language:
Swedish
Other Identifying Numbers:
Other: ON: DE93753072; TRN: SE9207305
Availability:
OSTI; NTIS
Submitting Site:
SWD
Size:
48 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Berglund, B, Gullberg, T, Johannesson, A, Synwoldt, U, and Saell, H O. The long bundler. Development and testing of a machine for bundling of small trees; Laangbuntaren. Framtagning och testning av en maskin foer buntning av klena traed. Sweden: N. p., 1991. Web.
Berglund, B, Gullberg, T, Johannesson, A, Synwoldt, U, & Saell, H O. The long bundler. Development and testing of a machine for bundling of small trees; Laangbuntaren. Framtagning och testning av en maskin foer buntning av klena traed. Sweden.
Berglund, B, Gullberg, T, Johannesson, A, Synwoldt, U, and Saell, H O. 1991. "The long bundler. Development and testing of a machine for bundling of small trees; Laangbuntaren. Framtagning och testning av en maskin foer buntning av klena traed." Sweden.
@misc{etde_10113685,
title = {The long bundler. Development and testing of a machine for bundling of small trees; Laangbuntaren. Framtagning och testning av en maskin foer buntning av klena traed}
author = {Berglund, B, Gullberg, T, Johannesson, A, Synwoldt, U, and Saell, H O}
abstractNote = {Compression and bundling forest fuels into suitable units is an alternative to chipping. Bundling can be expected to be associated with considerably better storage possibilities, due to more thorough drying and lowered risk for microbial decomposition. To test the potential of bundling, as well as to explore the handling and storage characteristics of bundles, a test rig - ``Long Bundler`` - was developed which produces bundles with a length of 3 meters and a diameter of 30-40 cm. The bundling process was designed as an almost continuous flow of material through the machine, from feeding of raw material, through compression and binding, to cross-cutting of the finished bundle. The report describes the development of a test rig, time studies of bundling with manual feeding in clearing stands, studies of transport with a conventional timber truck as well as storage and burning of bundles. The produced bundles had an average weight of almost 110 kg which corresponds to 0.114 m{sup 3} (solid) biomass per bundle. The percentage of solid volume was calculated to 37.7 per cent. With one person manoevring the machine and another dragging and loading the clearing wood (diameter 3-5 cm), a performance of 10-12 bundles per work-hour was obtained. The manual feeding of the material is a bottleneck in the system. The theoretical maximum performance is approximately 80 bundles per hour. A storage trial over a period of three summers showed that the average moisture content of the bundles was as low as 22%. Simple fuel-value studies involving whole bundles showed that the bundles burn very quickly. (18 refs., 16 figs., 9 tabs.).}
place = {Sweden}
year = {1991}
month = {Dec}
}