Issue №4, Vol. 18
Gasparyan G., Davtyan A., Grigorev I., Markov O., Grigoreva O. Numerical study of indicators of wood harvesting on forest plantations // Resources and Technology. 2021. №4, Vol. 18. P. 17‒45.



DOI: 10.15393/j2.art.2021.5923

Numerical study of indicators of wood harvesting on forest plantations

Gasparyan
   Garik 		Siberian Biougol LLC, garik.gasparian@yandex.ru
Davtyan
   Armen 		Voronezh State University of Engineering Technologies, armen_davtyan_2019@inbox.ru
Grigorev
   Igor 		Arctic State Agrotechnological University, silver73@inbox.ru
Markov
   Oleg 		Petrozavodsk State University, markovob@yandex.ru
Grigoreva
   Olga 		St. Petersburg State Forestry Engineering University named after S. M. Kirov, grigoreva_o@list.ru
Key words:
forest plantations
energy efficiency
energy wood
machine systems
wood harvesting		 Summary: World environmental policy has recently coined a new term "Bioeconomics" which has quite a lot of different definitions. In particular, bioeconomics is a process of sustainable production and conversion of biomass to produce food and industrial products, as well as energy. The process of developing and operating forest plantations for energy purposes fits this definition. Energy forest plantations also perfectly suit the tasks of the Global Energy Transition in the economy of the Russian Federation, which was announced by Prime Minister Mikhail Mishustin at the end of September 2021. The main evaluation criterion of developing and operating energy forest plantations is their energy efficiency. It claims that the energy value of the grown wood pulp should be greater than the amount of energy spent on its cultivation and harvesting. The article presents practical dependencies for assessing the energy value of stem wood on the growth time. The authors present mathematical models for calculating the performance of various complexes of machines and mechanisms for harvesting plantation wood and the results of their implementation. The results of a computational experiment are presented and dependencies for practical evaluation of harvesting energy wood indicators by various complexes of machines and mechanisms that improve planning and decision-making in the field of harvesting plantation wood are obtained. The work was carried out within the framework of the scientific school "Innovative developments in the field of logging industry and forestry" of the Arctic State Agrotechnological University.

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