Journal article
A tool for productivity and cost forecasting of decentralised wood chipping
Forest Policy and Economics, Vol.12(3), pp.194-198
2010
Abstract
The growing interest in forest biomass has made chipping increasingly popular all across Europe. Many operators have equipped for the purpose, but the large variety of working conditions found in the European forests makes it difficult to correctly estimate the productivity of each specific operation, leading to uncertainty in crucial decisions, such as: operation scheduling, price setting, machinery selection and acquisition. In 2001, the Italian National Council for Research (CNR) and the University of California (UC) developed a spreadsheet freeware capable of returning reliable estimates of chipping productivity and cost, on the basis of user-defined input data. The model is still available from the CNR website and is the object of frequent downloading and inquiries. Such model contains a set of predictive equations derived from the results of 102 field trials, conducted with 30 different machines, under a range of working conditions. In order to facilitate comparison with other estimates and to achieve methodological transparency, the equations are assembled into a simple Microsoft Excel workbook, and the costs are calculated with standard costing methods currently used in Forest and Agricultural Engineering. Since then CNR has continued to work on the subject, with the goal of updating and refining the model. Such work has included 45 validation tests and a separate study on the delay (idle) time typical for different chipping operation layouts. The study was concluded in 2009 and confirms that the model developed by CNR can provide reliable estimates of chipper productivity under a range of operational conditions. Authors believe that such a model can assist European foresters in keeping ahead with the growing biomass sector, thus helping them to seize an important business opportunity. © 2009 Elsevier B.V. All rights reserved.
Details
- Title
- A tool for productivity and cost forecasting of decentralised wood chipping
- Authors
- Raffaele Spinelli (Author) - CNR IVALSA, ItalyNatascia Magagnotti (Author) - CNR IVALSA, Italy
- Publication details
- Forest Policy and Economics, Vol.12(3), pp.194-198
- Publisher
- Elsevier BV
- Date published
- 2010
- DOI
- 10.1016/j.forpol.2009.10.002
- ISSN
- 1389-9341
- Organisation Unit
- University of the Sunshine Coast, Queensland; Forest Industries Research Centre; Forest Research Institute
- Language
- English
- Record Identifier
- 99448839502621
- Output Type
- Journal article
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