Assessor feedback: Calculate the thermal allowable stress range, Sa, for a piping system constructed of ASTM A 106 Gr. B, pipe material used at a service temperature of 260 °C (500 °F) and with a design life of 18,000 thermal cycles. Hint: You may use the formula, S. = f (1.25Sc +0.25 Sh), where SA is the allowable stress range, f is the cyclic stress reduction factor, Sc is the allowable stress at the cold condition, and So is the allowable stress at the hot condition. ​

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

If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.