7 research outputs found
Development of a control system for roasting carbon-graphite materials based on modeling quality characteristics of roasted products
Experimental investigations and mathematical modeling of the dynamics of thermal decomposition of carbon composites
The thermolysis of carbon compositions of leading enterprises of the electrode branch of industry is experimentally investigated by methods of differential thermal and gravimetric analysis in a temperature range of 200-900Β°C using a Setsys Evolution 1750 derivatograph. The samples of "green" billets differed in the granulometric composition of carbon of the filling agent and the type of the binding agent (pitch). They were heated at a rate of 15 K/min in the inert medium. The data on the isolation of volatiles were processed by mathematical modeling in the Mathcad-11 medium by one- and two-component diagrams of computation of the kinetics of the thermolysis process. Mathematical models adequately describing these experimental data were constructed. The constants or the reaction rate and activation energies of decomposition of the binder of carbon composites for both diagrams of the computations were established. An example of the computation of thermolysis for industrial conditions of roasting the graphitized electrode of the EG Γ200 mm grade is presented
Experimental investigations and mathematical modeling of the dynamics of thermal decomposition of carbon composites
Π€ΠΈΠ·ΠΈΡΠ΅ΡΠΊΠ°Ρ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ Π²ΠΎΠ΅Π½Π½ΠΎ-ΠΌΠΎΡΡΠΊΠΈΡ ΡΠΏΠ΅ΡΠΈΠ°Π»ΠΈΡΡΠΎΠ² ΠΊΠ°ΠΊ ΡΠ°ΠΊΡΠΎΡ ΡΠΎΡ ΡΠ°Π½Π΅Π½ΠΈΡ ΠΈΡ ΠΏΡΠΎΡΠ΅ΡΡΠΈΠΎΠ½Π°Π»ΡΠ½ΠΎΠΉ
The purpose of the study was to assess the physical activity of naval specialists in the conditions of the march, for which they evaluated their physical performance and revealed its dependence on the regularity of the exercise program. In total, 80 crew members of the ship aged 20 to 40 years old were surveyed during a two-month hike with a different physical training regime β not engaged, engaged in physical training under the guidance of a ship-driver according to a specially developed program, and doing it independently. As a result of the study, it was revealed that naval specialists who were not engaged in physical training during a hike, have multidirectional dynamics of their physical performance, improving in the middle of the hike, and returning to the initial state by the end of the hike. Naval specialists, who regularly exercised independently, have a positive dynamics of their physical performance, which significantly increases both in the middle and at the end of the cruise. A tendency towards a deterioration in the level of physical performance is observed among persons engaged in independent and irregular ways at the end of a hike. As a result of the research, it has been established that the use of a specially developed training program for physical activity allows us not only to preserve, but also improve the physical performance of naval specialists in the conditions of a hike.Π¦Π΅Π»ΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ Π±ΡΠ»ΠΎ ΠΈΠ·ΡΡΠ΅Π½ΠΈΠ΅ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΎΠΉ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ Π²ΠΎΠ΅Π½Π½ΠΎ-ΠΌΠΎΡΡΠΊΠΈΡ
ΡΠΏΠ΅ΡΠΈΠ°Π»ΠΈΡΡΠΎΠ² Π² ΡΡΠ»ΠΎΠ²ΠΈΡΡ
ΠΏΠΎΡ
ΠΎΠ΄Π°, Π΄Π»Ρ ΡΠ΅Π³ΠΎ ΠΎΡΡΡΠ΅ΡΡΠ²Π»ΡΠ»Π°ΡΡ ΠΎΡΠ΅Π½ΠΊΠ° ΠΈΡ
ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠ°Π±ΠΎΡΠΎΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡΠΈ ΠΈ Π²ΡΡΠ²Π»Π΅Π½ΠΈΠ΅ Π΅Π΅ Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ ΠΎΡ ΡΠ΅Π³ΡΠ»ΡΡΠ½ΠΎΡΡΠΈ Π²ΡΠΏΠΎΠ»Π½Π΅Π½ΠΈΡ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΡ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΈΡ
Π½Π°Π³ΡΡΠ·ΠΎΠΊ. ΠΡΠ΅Π³ΠΎ Π±ΡΠ»ΠΎ ΠΎΠ±ΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΎ 80 ΡΠ΅Π»ΠΎΠ²Π΅ΠΊ ΡΠΊΠΈΠΏΠ°ΠΆΠ° ΠΊΠΎΡΠ°Π±Π»Ρ Π² Π²ΠΎΠ·ΡΠ°ΡΡΠ΅ ΠΎΡ 20 Π΄ΠΎ 40 Π»Π΅Ρ Π½Π° ΠΏΡΠΎΡΡΠΆΠ΅Π½ΠΈΠΈ Π΄Π²ΡΡ
ΠΌΠ΅ΡΡΡΠ½ΠΎΠ³ΠΎ ΠΏΠΎΡ
ΠΎΠ΄Π° Ρ ΡΠ°Π·Π»ΠΈΡΠ½ΡΠΌ ΡΠ΅ΠΆΠΈΠΌΠΎΠΌ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΡΠ΅Π½ΠΈΡΠΎΠ²ΠΊΠΈ β Π½Π΅ Π·Π°Π½ΠΈΠΌΠ°ΡΡΠΈΡ
ΡΡ, Π·Π°Π½ΠΈΠΌΠ°ΡΡΠΈΡ
ΡΡ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΡΡΠ΅Π½ΠΈΡΠΎΠ²ΠΊΠ°ΠΌΠΈ ΠΏΠΎΠ΄ ΡΡΠΊΠΎΠ²ΠΎΠ΄ΡΡΠ²ΠΎΠΌ ΠΊΠΎΡΠ°Π±Π΅Π»ΡΠ½ΠΎΠ³ΠΎ Π²ΡΠ°ΡΠ° ΠΏΠΎ ΡΠΏΠ΅ΡΠΈΠ°Π»ΡΠ½ΠΎ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½ΠΎΠΉ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠ΅, ΠΈ Π·Π°Π½ΠΈΠΌΠ°ΡΡΠΈΡ
ΡΡ ΡΠ°ΠΌΠΎΡΡΠΎΡΡΠ΅Π»ΡΠ½ΠΎ. ΠΡΡΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ Ρ Π²ΠΎΠ΅Π½Π½ΠΎ-ΠΌΠΎΡΡΠΊΠΈΡ
ΡΠΏΠ΅ΡΠΈΠ°Π»ΠΈΡΡΠΎΠ², Π½Π΅ Π·Π°Π½ΠΈΠΌΠ°Π²ΡΠΈΡ
ΡΡ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΡΡΠ΅Π½ΠΈΡΠΎΠ²ΠΊΠ°ΠΌΠΈ Π² ΠΏΠΎΡ
ΠΎΠ΄Π΅, Π½Π°Π±Π»ΡΠ΄Π°Π΅ΡΡΡ ΡΠ°Π·Π½ΠΎΠ½Π°ΠΏΡΠ°Π²Π»Π΅Π½Π½Π°Ρ Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠ° ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠ°Π±ΠΎΡΠΎΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡΠΈ, ΡΠ»ΡΡΡΠ°ΡΡΡ Π² ΡΠ΅ΡΠ΅Π΄ΠΈΠ½Π΅ ΠΏΠΎΡ
ΠΎΠ΄Π° ΠΈ Π²ΠΎΠ·Π²ΡΠ°ΡΠ°ΡΡΡ ΠΊ ΠΈΡΡ
ΠΎΠ΄Π½ΠΎΠΌΡ ΡΠΎΡΡΠΎΡΠ½ΠΈΡ ΠΊ ΠΊΠΎΠ½ΡΡ ΠΏΠΎΡ
ΠΎΠ΄Π°. Π£ Π²ΠΎΠ΅Π½Π½ΠΎ-ΠΌΠΎΡΡΠΊΠΈΡ
ΡΠΏΠ΅ΡΠΈΠ°Π»ΠΈΡΡΠΎΠ², ΡΠ΅Π³ΡΠ»ΡΡΠ½ΠΎ Π·Π°Π½ΠΈΠΌΠ°Π²ΡΠΈΡ
ΡΡ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΡΠΏΡΠ°ΠΆΠ½Π΅Π½ΠΈΡΠΌΠΈ ΡΠ°ΠΌΠΎΡΡΠΎΡΡΠ΅Π»ΡΠ½ΠΎ, Π½Π°Π±Π»ΡΠ΄Π°Π΅ΡΡΡ ΠΏΠΎΠ»ΠΎΠΆΠΈΡΠ΅Π»ΡΠ½Π°Ρ Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠ° ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠ°Π±ΠΎΡΠΎΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡΠΈ, ΠΊΠΎΡΠΎΡΠ°Ρ Π΄ΠΎΡΡΠΎΠ²Π΅ΡΠ½ΠΎ ΡΠ²Π΅Π»ΠΈΡΠΈΠ²Π°Π΅ΡΡΡ ΠΊΠ°ΠΊ Π² ΡΠ΅ΡΠ΅Π΄ΠΈΠ½Π΅, ΡΠ°ΠΊ ΠΈ Π² ΠΊΠΎΠ½ΡΠ΅ ΠΏΠΎΡ
ΠΎΠ΄Π°. Π£ Π»ΠΈΡ, Π·Π°Π½ΠΈΠΌΠ°Π²ΡΠΈΡ
ΡΡ ΡΠ°ΠΌΠΎΡΡΠΎΡΡΠ΅Π»ΡΠ½ΠΎ ΠΈ Π½Π΅ΡΠ΅Π³ΡΠ»ΡΡΠ½ΠΎ Π² ΠΊΠΎΠ½ΡΠ΅ ΠΏΠΎΡ
ΠΎΠ΄Π°, Π½Π°Π±Π»ΡΠ΄Π°Π΅ΡΡΡ ΡΠ΅Π½Π΄Π΅Π½ΡΠΈΡ ΠΊ ΡΡ
ΡΠ΄ΡΠ΅Π½ΠΈΡ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠ°Π±ΠΎΡΠΎΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡΠΈ. Π ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΡΠΏΠ΅ΡΠΈΠ°Π»ΡΠ½ΠΎ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½ΠΎΠΉ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΡ ΡΡΠ΅Π½ΠΈΡΠΎΠ²ΠΎΠΊ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΎΠΉ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ Π΄ΠΎΡΡΠΎΠ²Π΅ΡΠ½ΠΎ Π½Π΅ ΡΠΎΠ»ΡΠΊΠΎ ΡΠΎΡ
ΡΠ°Π½ΠΈΡΡ, Π½ΠΎ ΠΈ ΡΠ»ΡΡΡΠΈΡΡ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΡΡ ΡΠ°Π±ΠΎΡΠΎΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡΡ Π²ΠΎΠ΅Π½Π½ΠΎ-ΠΌΠΎΡΡΠΊΠΈΡ
ΡΠΏΠ΅ΡΠΈΠ°Π»ΠΈΡΡΠΎΠ² Π² ΡΡΠ»ΠΎΠ²ΠΈΡΡ
ΠΏΠΎΡ
ΠΎΠ΄Π°.</p