4) The water bottle brand hydro flask has a TempShield technology featuring two layers of stainless...
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4) The water bottle brand hydro flask has a TempShield technology featuring two layers of stainless steel with vacuum in between. To understand this technology, suppose you have two infinitely long steel plates separated by a gap of 2 mm. The top steel surface has a surface temperature of 80 C, while the lower steel surface has a surface temperature of 10 C. The emissivity of the steel surface is assumed to be 0.5. (a) If the gap is filled with vacuum, what is the heat flux between the two plates at steady state? (b) If the gap is filled with stationary air with a conductivity of 0.027 W/mK, what is the heat flux between the two plates at steady state? Comment on your results. 4) The water bottle brand hydro flask has a TempShield technology featuring two layers of stainless steel with vacuum in between. To understand this technology, suppose you have two infinitely long steel plates separated by a gap of 2 mm. The top steel surface has a surface temperature of 80 C, while the lower steel surface has a surface temperature of 10 C. The emissivity of the steel surface is assumed to be 0.5. (a) If the gap is filled with vacuum, what is the heat flux between the two plates at steady state? (b) If the gap is filled with stationary air with a conductivity of 0.027 W/mK, what is the heat flux between the two plates at steady state? Comment on your results.
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