A composite wall separates combustion gases at 2600 °C from a liquid coolant at 100 °C, with gas- and liquid-side convection coefficients of 50 and 1000 W/m^2K. The wall is composed of a 10-mm- thick layer of beryllium oxide on the gas side and a 20-mm-thick slab of stainless steel on the liquid side. The contact resistance between the oxide and the steel is 0.05 m^2K/W. What is the heat flux of the composite wall? Sketch the temperature distribution from the gas to the liquid.

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?

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.

What are the two (02) benefits, which may result from a successful implementation of preventive maintenance (pm) program in an organization? (clo3)a)- lean manufacturing b)-overlapping responsibilities c)-the planner is not qualified d)-accurate contractor information e)-reduction in equipment redundancies f)-accurate stores information