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Traditional firewood is still the most popular type of solid fuel. This is mainly because of the availability of raw materials and simple production process, which involves mostly just sawing and cleaving. Cleaving increases the surface of the wood through which water evaporates, which in turn speeds up the drying. Dry wood has a higher calorific value and its combustion releases less harmful carbon...
The work of woodcutter is considered to be hard and dangerous. This job requires not only knowledge, but also skills. Experience is considered one of the most important factors affecting the safety of the chain saw operations. The objective of the study was to analyse the effect of experience on the performance of woodcutters. The research was carried out in Chojnów Forest District (central Poland)...
Nowadays private forests in Poland cover about 17% of all forested areas, and their share increases steadily. The average area of private forest in Poland is about 1 hectare. It is owned by a farmer, who works in it for at most several days a year, mainly performing timber harvesting. The aim of the study was to show the real state of work safety at the process of timber harvesting in the private...
W artykule przedstawiono charakterystykę głowic roboczych maszyn wielooperacyjnych, zwanych powszechnie harwesterami, stosowanych obecnie w Polsce w procesie pozyskiwania drewna. Głowice zostały opisane na przykładzie modeli kilku wybranych, najpopularniejszych w naszym kraju firm, tj.: John Deere, Ponsse, Valmet. Omówiono konstrukcje poszczególnych zespołów głowicy, ich wady i zalety, zwłaszcza w...
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