Steel plate measuring 1m by 2m and of 5mm thickness intitailly at 500 degress C need to be cooled by air at 50 deg C and blowing at 20m/s. The air blows paraale to the shorter wdge. Estimate the convenction coeffiecient and thje initail cooling. The viscocity, specific heat and theraml conductivity of air at 275 deg C are 2.88E_)% Pa/s 1040J/kg/K and 0.0439 W/m/,respectively. Estimate the desnity of air using thre ideal gas law (R

Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.

Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?