Hello I need to calculate the nusselt number for natural gas in a buried pipeline. My question is how to calculate the convective heat transfer co efficient?(adsbygoogle = window.adsbygoogle || []).push({});

The data is 220000m3/h, pipe ID 35", gas temperature 100C and ground temperature is 4C, gas SG 0.65, k = 0.037 W/m-K, R= 441 J/kg-K, CP = 2016 J/Kg-K, gama = 1.28

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# Nusselt number

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