subject
Engineering, 27.09.2019 00:00 gabistock21

At steady state, a device for heating and humidifying air has 250 ft3/min of air at 40 f, 1 atm, and 80% relative humidity entering at one location, 1000 ft3/min of air at 60 f, 1 atm, and 80% relative humidity entering at another location, and liquid water injected at 55 f. a single moist air stream exits at 85 f, 1 atm, and 35% relative humidity. using data from the psychrometric chart, fig. a-9e, determine (a) the rate of heat transfer to the device, in btu/min.

(b) the rate at which liquid water is injected, in lb/min.

ansver
Answers: 3

Another question on Engineering

question
Engineering, 04.07.2019 18:10
Which of the following refers to refers to how well the control system responds to sudden changes in the system. a)-transient regulation b)- distributed regulation c)-constant regulation d)-steady-state regulation
Answers: 1
question
Engineering, 04.07.2019 18:10
Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.
Answers: 1
question
Engineering, 04.07.2019 18:20
Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]
Answers: 1
question
Engineering, 04.07.2019 18:20
Find the kinematic pressure of 160kpa. for air, r-287 j/ kg k. and hair al viscosity of air at a temperature of 50°c and an absolute (10 points) (b) find the dynamic viscosity of air at 110 °c. sutherland constant for air is 111k
Answers: 3
You know the right answer?
At steady state, a device for heating and humidifying air has 250 ft3/min of air at 40 f, 1 atm, and...
Questions
question
English, 12.02.2021 23:10
question
English, 12.02.2021 23:10
question
Mathematics, 12.02.2021 23:10
question
Mathematics, 12.02.2021 23:10
question
Mathematics, 12.02.2021 23:10
Questions on the website: 13722367