Aheat treating process (process 1) can be added to a processing line for $30,000. the annual operating costs are $12,000 and its life is expected to be 8 years with a $10,000 salvage value at that time. an alternative process (process 2) can be installed for $21,000. its annual operating costs are $15,000 and its life is also expected to be 8 years with a $7,000 salvage value. in both cases, the annual increase in revenue due to the addition of the heat treating process is $20,000. the company's tax rate is 52% and the method of depreciation is syd. compute the rate of return of each heat treating process after depreciation and taxes. on the basis of this rate of return analysis, which alternative should be selected?

Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.

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.

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false