Consider a glass window (k = 0.7 W/m K) with cross-sectional area of 2 m2 and thickness of 1 cm exposed to the air inside the room at 20oC on one side and cold outside air on the outside. If the convection coefficient, h, for the inside air is 10 W/m2 K, h for the outside air is 20 W/m2 K, and the inside window surface temperature is 15oC, find the heat loss through the window an

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.

Atmospheric air has a temperature (dry bulb) of 80° f and a wet bulb temperature of 60° f when the barometric pressure is 14.696 psia. determine the specific humidity, grains/lb dry air. a. 11.4 c. 55.8 d. 22.5 b. 44.1