2. Air flows in a steady manner through a converging tube. At the inlet there are 690kPaa and 1.193m/kg. If 125m/min of air enters at the rate of 1.57 m/sec and the exit section has a diameter of 35cm, determine (a) the mass flow rate in kg/sec, (b) the diameter of the entrance section in mm and (c) the exit velocity in m/min.

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Chapter4: Numerical Analysis Of Heat Conduction
Section: Chapter Questions
Problem 4.17P
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It is a Thermodynamics subject please show the complete and step by step solution. Use the given format I inserted. Please answer it as soon as possible.
PROBLEM no 1
ASGUMING THm THERE ARE no HEAT EPFETS Ano no
FRICTIUNAL EFIECTS, FINO T HE KINETIC ENERGY AND (PEED
Df A 3220 · Ibm Booy AFER IT FMIS• 118 4 FROm REST.
START WITH THE STEADY PLOW EQUATION, DELETING ENERGY
TERMS WHICH ARE IRRE LEVANT.
GIVEN:
m: 3220 Ibm
V, = 0
PE, + KE, + Wf, +ttQ= PEz + KEz + W4z tHs twt
PE, + KE, = PE, + KEz
mgm + mv,?
2K
mahi
K.
mahi
m Vz
2gh=2 (32 . 174 4)s²) ( 778 ft)
Vz= 223.75's or 224 fps
mv,? (3320 Jbm) (883.75 f+/6)?
2 ( 82. 174 bm
los .
2505225. 98 Ibf tg
BTU
= 322 o. 08 B
Transcribed Image Text:PROBLEM no 1 ASGUMING THm THERE ARE no HEAT EPFETS Ano no FRICTIUNAL EFIECTS, FINO T HE KINETIC ENERGY AND (PEED Df A 3220 · Ibm Booy AFER IT FMIS• 118 4 FROm REST. START WITH THE STEADY PLOW EQUATION, DELETING ENERGY TERMS WHICH ARE IRRE LEVANT. GIVEN: m: 3220 Ibm V, = 0 PE, + KE, + Wf, +ttQ= PEz + KEz + W4z tHs twt PE, + KE, = PE, + KEz mgm + mv,? 2K mahi K. mahi m Vz 2gh=2 (32 . 174 4)s²) ( 778 ft) Vz= 223.75's or 224 fps mv,? (3320 Jbm) (883.75 f+/6)? 2 ( 82. 174 bm los . 2505225. 98 Ibf tg BTU = 322 o. 08 B
2. Air flows in a steady manner through a converging tube. At the inlet there are 690kPaa
and 1.193m/kg. If 125m/min of air enters at the rate of 1.57 m/sec and the exit
section has a diameter of 35cm, determine (a) the mass flow rate in kg/sec, (b) the
diameter of the entrance section in mm and (c) the exit velocity in m/min.
3. A ball is thrown vertically upward from the ground and a student gazing out the window
sees it moving upward pass him at 5 m/s. The window is 1000cm above the ground.
How high does the ball go above the ground?
Transcribed Image Text:2. Air flows in a steady manner through a converging tube. At the inlet there are 690kPaa and 1.193m/kg. If 125m/min of air enters at the rate of 1.57 m/sec and the exit section has a diameter of 35cm, determine (a) the mass flow rate in kg/sec, (b) the diameter of the entrance section in mm and (c) the exit velocity in m/min. 3. A ball is thrown vertically upward from the ground and a student gazing out the window sees it moving upward pass him at 5 m/s. The window is 1000cm above the ground. How high does the ball go above the ground?
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