Développement d'un outil de coupe économique et écologique pour le broyage des végétaux : analyse du mode de coupe, prototypage et innovation des moyens de coupe et de broyage

Abstract : Consumption of fuelwood, mainly in the form of wood chips, is growing to achieve the goal fixed by the “Grenelle de l’Environment” Laws. Increasing wood chip production needs more and more raw materials and use of wood chippers or shredders is well established. These machines are very energy-consuming particularly in gasoline. First, this thesis presents original methods for measuring chipper performance and focuses on influence of cutting parameters on energy efficiency. Wood chipper energy performance is defined by the ratio between tonnes of dry wood chips and power consumed by the machine to produce them. Using energy efficiency determination method, all wood chippers will be compared and will help customer to choose the machine that consumes the least energy to produce wood chips. Wood chipper performance is measured at two different locations: one closer to the cutting area and the other at the wood chipper drive. The results show that wood chipper performance factor is properly defined and cutting parameters impacts wood chip performance. Cutting optimization halves the chipper fuel consumption to produce the same wood chips quantity. The results also show the limits of safeguard that reduce by 40% chipper performance. This thesis must help designers for developing more efficient machines to reduce their impact on the environment
Complete list of metadatas

Cited literature [67 references]  Display  Hide  Download

https://hal.univ-lorraine.fr/tel-01925023
Contributor : Thèses Ul <>
Submitted on : Monday, June 3, 2019 - 9:45:25 AM
Last modification on : Monday, June 3, 2019 - 9:48:01 AM

File

DDOC_T_2017_0296_LABBE.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : tel-01925023, version 1

Citation

Stéphane Labbé. Développement d'un outil de coupe économique et écologique pour le broyage des végétaux : analyse du mode de coupe, prototypage et innovation des moyens de coupe et de broyage. Sciences de l'ingénieur [physics]. Université de Lorraine, 2017. Français. ⟨NNT : 2017LORR0296⟩. ⟨tel-01925023⟩

Share

Metrics

Record views

74

Files downloads

42