Engineering, 23.10.2021 05:10 scarletmartinez
You are assigned a task to design the Composite wall of a Curing Oven two layers of bricks and one ofinsulation (as shown in the figure). Heating is accomplished by an electric heater. Inside the oven there is a fanto homogenize the temperature ( T = X °C, h = 50 W/m2°C). Lab environmental condition are (T = 25 °C, h =(X/20) W/m2°C).(a) Calculate thickness of insulation (k = 0.015 W/m°C) to reduce heat transfer up to (100/2.5)%.(b) Calculate the temperature on the outer surface of the oven.(c) Calculate heat transfer from brick-1.(d) If it is assumed that the same heat transfer from all six sides, calculate the cost of electricity for threehour. (use 30 Rs/kw-h))
Answers: 1
Engineering, 03.07.2019 14:10
When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point
Answers: 3
Engineering, 04.07.2019 18:10
Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.
Answers: 2
Engineering, 04.07.2019 18:10
Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.
Answers: 3
Engineering, 04.07.2019 18:10
Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way
Answers: 2
You are assigned a task to design the Composite wall of a Curing Oven two layers of bricks and one o...
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