Engineering, 09.04.2020 16:27 brooklym2940
Ambient air with a dew point of 1°C and a relative humidity of 60% is conveyed at a rate of 1.5 m^3 /s through an electric heater. The air is heated to a dry bulb temperature of 50°C. The heated air is then allowed to pass through a tray drier that contains 200 kg of apple slices with an initial moisture content of 80% wet basis. The air exits the dryer with a dew-point temperature of 21.2°C. If the electrical energy costs 5c/(kW h),
a. Calculate the electrical costs for heating the air per hour of operation.
b. Calculate the amount of water removed by air from apple slices per hour of operation.
c. If the dryer is operated for 2 h, what will be the final moisture content of the apple slices (wet basis)?
Answers: 2
Engineering, 04.07.2019 19:10, justkevin1231
Which of the following is the most important advantage of a large field of view? a. allows larger areas to be examined b. relieves eyestrain c. minimizes parallax errors. d. increases precision in proportion to the in- crease in field of view
Answers: 2
Engineering, 06.07.2019 05:30, yami4458
Aspring-mass system consists of a mass weighing 20 kg and a spring with stiffness of 1000 n/m. the mass is subjected to resonance by a harmonic force f(t) 20 cos wt n. the initial condition is given as the initial position 0 and the initial velocity 0. find the amplitude of the forced motion at the end of (a) 1.5 cycle and (b) 2.25 cycles
Answers: 2
Ambient air with a dew point of 1°C and a relative humidity of 60% is conveyed at a rate of 1.5 m^3...
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