A thin electrical heater d apating 5000 W/m2 c = 700 ]/kg-K, and k = 5 W/m-K. sandwiched between two 40 m thick plates whose c pose surfaces experience convection with a fluid or which = 20uC and 40a...

A thin electrical heater d apating 5000 W/m2 c = 700 ]/kg-K, and k = 5 W/m-K. sandwiched between two 40 m thick plates whose c pose surfaces experience convection with a fluid or which = 20uC and 40a w m K. Ihe thermophysical properties c the plate mat nal are 2500 kg/m, Electric heater, 90 ?, e, k Fluid luid T, h -L (a) Calculate values of the temperatures at the surfaces, x = ±L, and the midpoint, x = 0. (b Consider conditions for which there is a loss of coolant and existence of a nearly adiabatic oondition on the x = + surface. Calculate the temperatures at x = 0 ±. (c) With the system operating as described in part (b), the surface-L also experiences a sudden loss of ccolant. This dangerous situation goes undetected for 15 min, at which time the power to the heater is deactivated. Assuming no heat losses from the surfaces of the p ates, what is the ev ual r uniform steady state temperature dis nbut on in the plates? Hint: App y he cancer ation of anarqy requirement nna time-Interval baas u or th initial and final conditions corresponding to part b and part (c) respectively