A pipe carrying superheated steam in a basement at 10?C has a surface temperature of 150?C. Heat loss from the pipe occurs by radiation (ε = 0.6) and natural convection [ hc = 25 W/(m2 K)]. Determine the percentage of the total heat loss by these two mechanisms.GIVENPipe in a basementPipe surface temperature (Ts) = 150?C = 423 KBasement temperature (T??) = 10?C = 283 KPipe surface emissivity (ε) = 0.6Convective heat transfer coefficient ( hc ) = 25 W/(m2 K)ASSUMPTIONSThe system is in steady stateThe basement behaves as a blackbody enclosure at10?C

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Basement Wall Temperature - T. Plpe T = 423 K T.- 283 K