Biomass cutting tests to determine the lowest value of the process force

Abstract

The paper presents experimental investigations of straw cutting in the form of triticale. The cutting was performed using a specialized testing station adapted for mounting on a MTS Insight 50 kN testing machine. It is allows to change the cutting blade, which made it possible to study the effect of changing the rake angle of its blade and the inclination of the cutting edge on cutting force value. The influence of the linear speed of the knife and the size of the gap between the blade and the counter-blade was also investigated. The results obtained allowed to select the most favorable values of the above-mentioned parameters of the cutting process in terms of obtaining the lowest value of the cutting force, which consequently determines the process energy consumption. Obtained results are not only guidelines for machine design and cutting devices, but these can also be used as input data for multicriteria analysis, which can result in looking for other values of process parameters not taken into account in the presented studies, and key ones in the direction of the next ones.

Numerical verification of the calorimeter concept for determining the calorific value of unidentified gaseous fuels

“…The energy policy of Poland assumes reliable supplies of both fuels and energy, greater competitiveness of the domestic economy by increasing the efficiency of the energy sector, but also increasing the emphasis on the use of renewable energy [1]. Thus, along with other renewable energy sources, the share of biomass in the electricity generation process will also gain in importance [2]. The use of this type of fuel in the industrial generation of electricity and heat entails, cause the need to ensure a constant calorific value of the produced gas fuel.…”

Experimental Study on the Mechanical Behavior of Dry Corn Stalk Cutting

“…During an examination carried out on an MTS testing machine which involved cutting a single stalk of the triticale straw, the lowest recorded cutting strength was for a blade angle of 45 • and a rake angle of 30 • , at a material moisture content of 10.5% (Wilczy ński et al) [26].…”

Directions of Development of Adaptive Systems to the Operating Conditions of Mobile Wood Chopping Machines with Low Power Engines

“…The waste generated that way, in the form of branches, is processed by the machinery [5]. The processing mechanisms consist in shredding them so as to facilitate the further processes of transporting [6], storage [7], composting or generating power [8][9][10][11]. These machines are most frequently powered by combustion engines [12,13] which consume non-renewable energy and release harmful exhaust gases [14,15].…”