nūhou

ʻO ka fiber refractoryma ke ʻano o ka hoʻoili wela hiki ke hoʻokaʻawale ʻia i kekahi mau mea, ʻo ka hoʻoili wela o ka radiation o ka porous silo, ka ea i loko o ka conduction heat silo porous a me ka conductivity thermal o ka fiber paʻa, kahi i mālama ʻole ʻia ai ka hoʻoili wela convective o ka ea. He pilina pili ka nui a me ka wela, ʻoi aku ka kiʻekiʻe o ka mahana, ʻoi aku ka haʻahaʻa o ka nui o ka hihia, piʻi ka lakio o ka hoʻoili wela. No nā huahana fiber refractory, ʻoi aku ka nui o ka nui ma lalo o 0.25g / cm ', ʻoi aku ka porosity ma luna o 90%, hiki ke ʻike ʻia ke ʻano kinoea e like me ka hoʻomau, hiki ke ʻike ʻia ke ʻano paʻa e like me ka discontinuous, no laila he liʻiliʻi ka conductivity thermal paʻa o ka fiber.
Inā maʻalahi mai ka manaʻo he liʻiliʻi ka nui o ka nui, he nui ka conductivity thermal, he liʻiliʻi ka haʻahaʻa puʻupuʻu nui; ʻAʻole like kēia me ke kūlana maoli, e like me ka ʻokoʻa o ka slag ball maʻiʻo, ʻoiai inā he like ka nui o ka nui, ʻokoʻa ka helu o nā fibers no kēlā me kēia leo, no laila ʻaʻole like ka porosity no kēlā me kēia leo, no laila e ʻokoʻa ka conductivity thermal. Eia naʻe, hiki ke hōʻuluʻulu ʻia nā hopena qualitative penei.
1. Ka thermal conductivity onā fibers refractorye emi ana me ka pi'i 'ana o ka mānoanoa, a emi iki ka emi, akā, i ka hiki 'ana o ka mānoanoa i kekahi laulā, 'a'ole e emi hou ka conductivity thermal a loa'a ka mana'o e pi'i mālie.
2. Ma nā mahana like ʻole, aia ka haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa a me ka haʻahaʻa haʻahaʻa haʻahaʻa. Piʻi ka mānoanoa e pili ana i ka haʻahaʻa haʻahaʻa haʻahaʻa me ka piʻi ʻana o ka mahana.
3. No ka like like, ʻokoʻa ka conductivity thermal me ka nui o nā pores.
(1) Nui pore 0.1mm.
0C i loko o = 0.0244W/(m. K) 100C ke λ = 0.0314W / (m. K)
(2) Aperture 2mm.
Ma ka 0C = 0.0314W/(m, K) λ = 0. 0512W/(m. K) ma 100C. K)
Pore anawaena o 1mm, piʻi ka mahana mai 0C a 500C, kona thermal conductivity waiwai piʻi 5.3 manawa; pore anawaena o 5mm, piʻi ka mahana mai 0C a 500C, kona thermal conductivity waiwai piʻi 11.7 manawa. No laila, ʻoi aku ka nui o nā pores i loko o ka fiber refractory, ʻoi aku ka liʻiliʻi o ka puʻupuʻu nui like, a piʻi ka conductivity thermal.