ACDSeePrint Job - Poljoprivredna tehnika

⎛⎛2( τ 264.877)⎞⎞⎜( τ - 411.12)b8τ b90.3392 v&Exp⎜ ⎛− ⎞⎛⎞2.30710.1272 v&⎟⋅ ⋅Sin 3.7168⎜+ ⋅ ⋅ − ⎜⎟ ⎟+ ⋅ ⋅ ⎜⎟τ⋅⎜− ⋅⎟krτkr⎟η(τ , τ kr , v&⎝⎝ ⎝⎠ ⎠⎝⎠⎠ , (2), Δm)=Δm(τ , v&, m )gde je promena mase u vremenu data sa:( τ ,150, m0) = m0− m0Exp( − 0,0009 ⋅τ)( τ ,220, m0) = m0− m0Exp( − 0,002209 ⋅τ)( τ ,290, m0) = m0− m0Exp( − 0,00280 ⋅τ)( τ ,360, m0) = m0− m0Exp( − 0,00319 ⋅τ)( τ ,430, m ) = m − m Exp( − 0,00385 ⋅τ)ΔmΔmΔmΔmΔm0000Pri recirkulaciji od 16,5%, energetska efikasnost može da se prikaže modelom⎛⎛⎜( τ 369.1090)b10τ b110.2664 v&Exp⎜ ⎛ − ⎞⋅ ⋅2.2642⎜+ ⋅ ⋅ − ⎜⎟⎜⋅τkrη(τ , τ kr , v&⎝⎝ ⎝⎠, Δm)=Δm(τ , v&, m )gde je promena mase u vremenu data sa:Δm(τ ,150, m ) = m − m Exp0Δm(τ ,220, m ) = m − m Exp0Δm(τ ,290, m ) = m − m Exp0Δm(τ ,360, m ) = m − m Exp0Δm(τ ,430, m ) = m − m Exp00000000000( − 0,00103 ⋅τ)( − 0,00273 ⋅τ)( − 0,00228 ⋅τ)( − 0,00320 ⋅τ)( − 0,00415 ⋅τ)02⎞⎞⎟⎛ ( τ − 624.95) ⎞0.0771 v&⎟+ ⋅ ⋅Sin⎜3.5358⎟⋅⎟τkr⎟⎠⎝⎠⎠ , (3)Sada su b8, b9, b10, b11 regresioni koeficijeti dati u tabelama 4 i 5, τ - vreme sagoravanjabale, v& - protok vazduha, τ kr - ukupno vreme sagorevanja bale, m 0 - masa bale, Δm – promenamase bale u vremenu. Za model (2) dobijen je koeficijent determinacije R 2 =98,46%, dok zamodel (3) on iznosi R 2 =95,40%.Tab. 4. Ocene parametara u modelu (2), bez recirkulacijeTab. 4. Parameter estimation of mathematical model (2), no recirculationb8b9Ocena parametara,Paremeter estimation0,00713 45,33445Tab. 5. Ocene parametara u modelu (3), recirkulacija 16,5%Tab. 5. Parameter estimation of mathematical model (3), recirculation 16,5%b10b11Ocena parametara,Paremeter estimation0,00728 45,1450348