Stubbtransporter och bränslekvalitet hos stubbved
Stump wood is a hot alternative when the heating plants demands more and more forest fuel. The aim with the study has bean to calculate the costs in four different systems for transportations of stump wood, examine if there are any differences in fuel quality for the stump wood in the different syst...
| Autor principal: | |
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| Formato: | L3 |
| Lenguaje: | sueco Inglés |
| Publicado: |
SLU/Dept. of Forest Resource Management
2008
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| Materias: |
| _version_ | 1855572002217132032 |
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| author | Lindberg, David |
| author_browse | Lindberg, David |
| author_facet | Lindberg, David |
| author_sort | Lindberg, David |
| collection | Epsilon Archive for Student Projects |
| description | Stump wood is a hot alternative when the heating plants demands more and more forest fuel. The aim with the study has bean to calculate the costs in four different systems for transportations of stump wood, examine if there are any differences in fuel quality for the stump wood in the different systems, analyse if the fuel quality in stump wood is affected with the time it lays by the road side and how much space the stump wood demands on the road side. To calculate the costs for the different systems a system analysis was carried out, where some of the costs were collected through field studies on Holmen Skog stump experiment and other costs were collected from literature and contacts. Data for the fuel quality study was collected from Eons heat plant in Norrköping. Data for the study of how much space stump wood takes along a roadside was collected from field studies.
A system, where stump sections are transported with a lorry from the roadside to the power plant, is the cheapest system if the transport distance is short. A system where the stump wood is crushed at the landing site is the cheapest if the transport distance is a bit longer. A system where the stump wood is taken to a terminal, crushed there and then transported with a chip lorry to the heat plant has a cost just above the system where the stumps is crushed at the landing site. A system with terminal and train is the cheapest system if the transport distance is 250 kilometres.
The study of the stump wood fuel quality revealed that stump wood becomes dryer the longer it is stored at the landing site. No conclusion could be made about how the time at the landing site affected the amount of ash content in stump wood. The study of how much space stump wood takes by the landing place revealed that stump wood needs about 20 meter along the roadside per hectare of harvested stump wood. |
| format | L3 |
| id | RepoSLU12110 |
| institution | Swedish University of Agricultural Sciences |
| language | swe Inglés |
| publishDate | 2008 |
| publishDateSort | 2008 |
| publisher | SLU/Dept. of Forest Resource Management |
| publisherStr | SLU/Dept. of Forest Resource Management |
| record_format | eprints |
| spelling | RepoSLU121102017-11-07T11:43:11Z Stubbtransporter och bränslekvalitet hos stubbved Stump transport and fuel quality in stump wood Lindberg, David stubbar transport bränslekvalitet skogsbränsle avlägg transportsystem Stump wood is a hot alternative when the heating plants demands more and more forest fuel. The aim with the study has bean to calculate the costs in four different systems for transportations of stump wood, examine if there are any differences in fuel quality for the stump wood in the different systems, analyse if the fuel quality in stump wood is affected with the time it lays by the road side and how much space the stump wood demands on the road side. To calculate the costs for the different systems a system analysis was carried out, where some of the costs were collected through field studies on Holmen Skog stump experiment and other costs were collected from literature and contacts. Data for the fuel quality study was collected from Eons heat plant in Norrköping. Data for the study of how much space stump wood takes along a roadside was collected from field studies. A system, where stump sections are transported with a lorry from the roadside to the power plant, is the cheapest system if the transport distance is short. A system where the stump wood is crushed at the landing site is the cheapest if the transport distance is a bit longer. A system where the stump wood is taken to a terminal, crushed there and then transported with a chip lorry to the heat plant has a cost just above the system where the stumps is crushed at the landing site. A system with terminal and train is the cheapest system if the transport distance is 250 kilometres. The study of the stump wood fuel quality revealed that stump wood becomes dryer the longer it is stored at the landing site. No conclusion could be made about how the time at the landing site affected the amount of ash content in stump wood. The study of how much space stump wood takes by the landing place revealed that stump wood needs about 20 meter along the roadside per hectare of harvested stump wood. Stubbved är ett ”hett” alternativ då värmeverken skriker efter mer skogsbränsle. Målet med studien var att beräkna kostnaden i fyra olika system för transport av stubbved och undersöka om det blev skillnader på bränslekvaliteten i de olika systemen. Övriga mål med studien var att analysera om bränslekvaliteten hos stubbved påverkas av tiden vid avlägg och uppskatta hur stor plats stubbved tar vid avlägg. För att beräkna kostnaden på de olika systemen gjordes en systemanalys där vissa kostnader samlades in med fältstudier från Holmen Skogs stubbförsök, andra från kontakter och litteratur. Uppgifter som användes för att utvärdera bränslekvaliteten samlades in från inmätningen vid Eons värmeverk i Norrköping. Uppgifter till studien av avläggsstorlek samlades in genom fältstudier. Ett system där stubbved transporteras med en GROT-bil från avlägg direkt till värmeverk är billigast på korta avstånd. Ett system där stubbarna krossas vid avlägg och därefter körs med flisbil till värmeverket blir det billigaste alternativet vid lite längre transportavstånd. Ett system där stubbdelarna körs med GROT-bil till en terminal där de krossas för att därefter köras till värmeverket med flisbil hade en kostnad strax över systemet med krossning vid avlägg. Ett system med terminal och tåg är det billigaste alternativet vid ett totalt transportavstånd på 25 mil. Studien av bränslekvalitet på stubbved visade att stubbveden blev torrare vid längre lagringstid vid avlägg. För askhalten kunde inga slutsatser dras beroende på lagringstid. Från studien av avläggsstorlek framkom att stubbved behöver cirka 20 meter längs en väg från varje stubblyft hektar. SLU/Dept. of Forest Resource Management 2008 L3 swe eng https://stud.epsilon.slu.se/12110/ |
| spellingShingle | stubbar transport bränslekvalitet skogsbränsle avlägg transportsystem Lindberg, David Stubbtransporter och bränslekvalitet hos stubbved |
| title | Stubbtransporter och bränslekvalitet hos stubbved |
| title_full | Stubbtransporter och bränslekvalitet hos stubbved |
| title_fullStr | Stubbtransporter och bränslekvalitet hos stubbved |
| title_full_unstemmed | Stubbtransporter och bränslekvalitet hos stubbved |
| title_short | Stubbtransporter och bränslekvalitet hos stubbved |
| title_sort | stubbtransporter och bränslekvalitet hos stubbved |
| topic | stubbar transport bränslekvalitet skogsbränsle avlägg transportsystem |