trubаsimоn isitgichlаrni mоdеllаshtirish

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1701457124.docx d v c t d c g t c g t f t t д ( ( , )) ( , ) ( , ) ( ( , ) r t t r t r t a t × × × + = × × × - - × × × + + × - + d d d d l l l l l l l r r r т = + и 2 d t d c g t c s c g t c s r t t c r д ( , ) ( , ) ( , ) ( ( , ) l l l l l l l l l l l + = × × × × × × - - × × × + × × × + - + × × × × d d d d d d d …

a f = 2r. l, (s- trubaning kesim yuzasi; f- trubaning issiqlik o’tkazish yuzasi; r -trubaning radiusi, odatda u, tenglama bo’yicha aniqlanadi, bunda ri, rt - trubaning ichki va tashqi radiusi). matematik o’zgartirishlardan so’ng quyidagi tenglamani olamiz: chiziqli tezlik (), sarfning (g) truba kesim yuzasiga (s) nisbati bo’yicha aniqlanishini hisobga olib, ma’lum bir matematik o’zgartirishlardan so’ng, yuqoridagi tenglamani quydagicha yozishimiz mumkin: t(l+ l,) - t(l,), mahsulot temperaturasini l masofadagi o’zgarishi ekanligini hisobga olsak, yuqoridagi tenglama quyidagi ko’rinishga keladi: (1) ushbu matematik model parametrlari taqsimlash ushbu matematik model parametrlari taqsimlangan model bo’lib, jarayonning dinamikasini ifodalaydi va unda temperatura ikki koordinata bo’yicha (vaqt va apparat uzunligi) o’zgaradi. statsionar holatda, , (1) tenglama quyidagi ko’rinishga keladi: yoki eyler usulini qo’llab, apparat uzunligi bo’yicha temperaturaning taqsimlanishi va isitigichning optimal uzunligini aniqlash kabi masalalarni yechish mumkin. foydalaniladigan adabiyotlar: 1. m.n. muminova, m.a. maksumova «kasbiy etika va etiket», uslubiy qo’llanma, t.,2006. 2. i. a. karimov «istiqlol …

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1701457124.docx d v c t d c g t c g t f t t д ( ( , )) ( , ) ( , ) ( ( , ) r t t r t r t a t × × × + = × × × - - × × × + + × - + d d d d l l l l l l l r r r т = + и 2 d t d c g t c s c g t c s r t t c r д ( , ) ( , ) ( , ) ( ( , ) l l l l l l l l l l l + …

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