Buntning av grot med lastbilsmonterad utrustning
During the transportation of logging residues (LR) the material´s low density is a problem that results in low use of pay-load capacity. Comminution or compression of LR are possible methods to increase pay-loads. In the present thesis studied a bundling machine which was mounted on a truck chassis,...
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| Format: | Otro |
| Language: | Swedish Swedish |
| Published: |
2009
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| Online Access: | https://stud.epsilon.slu.se/12325/ |
| _version_ | 1855572042724671488 |
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| author | Edman, Torbjörn |
| author_browse | Edman, Torbjörn |
| author_facet | Edman, Torbjörn |
| author_sort | Edman, Torbjörn |
| collection | Epsilon Archive for Student Projects |
| description | During the transportation of logging residues (LR) the material´s low density is a problem that results in low use of pay-load capacity. Comminution or compression of LR are possible methods to increase pay-loads. In the present thesis studied a bundling machine which was mounted on a truck chassis, and the subsequent transport and crushing. The truck bundler created bundles that were larger and longer than other bundling equipment on the market. The objectives were to determine the total time consumption and its allocation over work element and machinery, to measure dry matter (DM) content of green and brown LR-bundles. In addition the objectives was also, the system's economy was addressed.
The base of the thesis was the time studies which were conducted on bundling, transport and crushing. One study site generated brown LR and another green LR. Produced bundles were transported by truck to industry where they were crushed. DM content and net calorific value were determined.
Produced bundles were on average 5.1 m long and 0.88 m in diameter. DM content of brown and green bundles were 62.4 and 54.9 percent. The mean mass was 716 kg
(419.5 kg DM) and contained a net calorific value of 2.1 MWh. The productivity was 11.9 bundles per E0-hour with no significant difference between the two LR types. To produce one bundle required 5.47 c-min which correspond to 4.95 tonnes DM per E0-hour.
Maximum load on the truck and trailer were 30 bundles (21.5 tons) and pay-load capacity was used to 69 percent.
Crushing capacity was 177 bundles per E0-hour, which corresponded to 73.5 tonnes DM per hour.
Fix cost for the compression, loading, unloading, crushing and transport was
89.7 SEK/MWh for brown bundles and 94.0 SEK/MWh of green bundles plus a transport cost of 0.41 SEK/MWh per km and 0.47 SEK/MWh per km, respectively.
Compared to loose LR, brown LR-bundles were profitable in the system analysis to transport when the distance exceeded 100 km. The corresponding transport distance for the green bundles was 75 km. |
| format | Otro |
| id | RepoSLU12325 |
| institution | Swedish University of Agricultural Sciences |
| language | Swedish swe |
| publishDate | 2009 |
| publishDateSort | 2009 |
| record_format | eprints |
| spelling | RepoSLU123252017-10-30T13:54:11Z https://stud.epsilon.slu.se/12325/ Buntning av grot med lastbilsmonterad utrustning Edman, Torbjörn Dept. of Forest Resource Management Forestry - General aspects During the transportation of logging residues (LR) the material´s low density is a problem that results in low use of pay-load capacity. Comminution or compression of LR are possible methods to increase pay-loads. In the present thesis studied a bundling machine which was mounted on a truck chassis, and the subsequent transport and crushing. The truck bundler created bundles that were larger and longer than other bundling equipment on the market. The objectives were to determine the total time consumption and its allocation over work element and machinery, to measure dry matter (DM) content of green and brown LR-bundles. In addition the objectives was also, the system's economy was addressed. The base of the thesis was the time studies which were conducted on bundling, transport and crushing. One study site generated brown LR and another green LR. Produced bundles were transported by truck to industry where they were crushed. DM content and net calorific value were determined. Produced bundles were on average 5.1 m long and 0.88 m in diameter. DM content of brown and green bundles were 62.4 and 54.9 percent. The mean mass was 716 kg (419.5 kg DM) and contained a net calorific value of 2.1 MWh. The productivity was 11.9 bundles per E0-hour with no significant difference between the two LR types. To produce one bundle required 5.47 c-min which correspond to 4.95 tonnes DM per E0-hour. Maximum load on the truck and trailer were 30 bundles (21.5 tons) and pay-load capacity was used to 69 percent. Crushing capacity was 177 bundles per E0-hour, which corresponded to 73.5 tonnes DM per hour. Fix cost for the compression, loading, unloading, crushing and transport was 89.7 SEK/MWh for brown bundles and 94.0 SEK/MWh of green bundles plus a transport cost of 0.41 SEK/MWh per km and 0.47 SEK/MWh per km, respectively. Compared to loose LR, brown LR-bundles were profitable in the system analysis to transport when the distance exceeded 100 km. The corresponding transport distance for the green bundles was 75 km. Vid transport av grot är bulkigheten ett problem som resulterar i lågt lastutnyttjande. Genom flisning, eller komprimering till buntar, kan högre lastvikter uppnås. I föreliggande examensarbete studerades buntning av grot med en buntningsmaskin monterad på ett lastbilschassi, samt efterföljande transport och krossning. Lastbilsbuntaren skapade buntar som var större, tyngre och längre än andra buntar på marknaden. Målen var att fastställa tidsåtgång och tidfördelning för ingående maskiner, och att mäta gröna och bruna grotbuntars andel torrsubstans. Dessutom belystes systemets ekonomi. Basen i examensarbetet var de tidsstudier som genomfördes på lastbilsbuntaren, transporten och krossningen. En försökslokal genererade brun grot och en annan försökslokal grön grot. Producerade grotbuntar transporterades med grotlastbil till industri där de krossades. Torrhalt och värmevärde fastställdes. Producerade buntar var i medeltal 5,1 m långa och 0,88 m i diameter. De vägde 716 kg (419,5 kg torrsubstans) och hade ett effektivt värmevärde på 2,1 MWh. Torrhalten för bruna och gröna buntar var 62,4 respektive 54,9 procent. Produktiviteten var 11,9 buntar per G0–tim och ingen signifikant skillnad i totaltid fanns mellan de två grottyperna. På 5,47 c-min producerades en bunt vilket motsvarade 4,95 ton TS per G0–tim. Maximal last på lastbil och släp var 30 buntar (21,5 ton) och lastkapaciteten utnyttjades till 69 procent. Krosskapaciteten uppmättes till 177 buntar per G0–tim vilket motsvarade 73,5 ton TS per timme. Kostnad för komprimering, lastning, lossning, krossning och transport var 89,7 kr/MWh för bruna buntar och 94,0 kr/MWh för gröna buntar plus en transportkostnad på 0,41 kr/MWh per km (bruna buntar) eller 0,47 kr/MWh per km (gröna buntar). Jämfört med obuntat material var bruna buntlass lönsamma i systemanalysen när transportavståndet översteg 100 km. Motsvarande transportavstånd för gröna buntar var 75 km. 2009-08-18 Other NonPeerReviewed application/pdf sv https://stud.epsilon.slu.se/12325/1/edman_t_171030.pdf Edman, Torbjörn, 2009. Buntning av grot med lastbilsmonterad utrustning. UNSPECIFIED, Umeå. Umeå: (S) > Dept. of Forest Resource Management <https://stud.epsilon.slu.se/view/divisions/OID-260.html> urn:nbn:se:slu:epsilon-s-8436 swe |
| spellingShingle | Dept. of Forest Resource Management Forestry - General aspects Edman, Torbjörn Buntning av grot med lastbilsmonterad utrustning |
| title | Buntning av grot med lastbilsmonterad utrustning |
| title_full | Buntning av grot med lastbilsmonterad utrustning |
| title_fullStr | Buntning av grot med lastbilsmonterad utrustning |
| title_full_unstemmed | Buntning av grot med lastbilsmonterad utrustning |
| title_short | Buntning av grot med lastbilsmonterad utrustning |
| title_sort | buntning av grot med lastbilsmonterad utrustning |
| topic | Dept. of Forest Resource Management Forestry - General aspects |
| url | https://stud.epsilon.slu.se/12325/ https://stud.epsilon.slu.se/12325/ |