Kalit so‘zlar
viskozitet, issiqlik o‘tkazuvchanlik
konvektiv issiqlik almashuv
Nusselt soni
Iqtibos keltirish tartibi
Annotatsiya
Energetika tizimlarida issiqlik uzatish samaradorligini oshirish dolzarb ilmiy muammolardan biri hisoblanadi. An’anaviy issiqlik tashuvchilarning past issiqlik o‘tkazuvchanligiissiqlik almashuv jarayonlarini cheklaydi.
Mazkur tadqiqotda nano-suyuqliklarning issiqlik-fizik xossalarini baholash uchun klassik nazariy modellar qo‘llanildi. Xususan, viskozitet uchun Einstein va Brinkman, issiqlik o‘tkazuvchanlik uchun Maxwell va Hamilton-Crosser modellaridan foydalanildi.
Tahlillar natijasida nanozarrachalar konsentratsiyasi ortishi issiqlik o‘tkazuvchanlikni oshirishi bilan birga viskozitetning ham ortishiga olib kelishi aniqlandi, bu esa gidravlik qarshilikning oshishiga sabab bo‘ladi.
Nano-suyuqliklardan foydalanish issiqlik uzatish samaradorligini oshiradi, biroq optimal konsentratsiyani tanlash zarur.
Adabiyotlar ro‘yxati
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