Question
In: Mechanical Engineering
Find the length of a 0.5 in. schedule 40 pipe required to heat water from 60...
Find the length of a 0.5 in. schedule 40 pipe required to heat water from 60 deg. f to 160 deg. f using condended steam at 260 deg f given water flowing at 600 lb/min.
Solutions
samet mamat answered 2 years agoRelated Solutions
Two identical double-pipe heat exchangers are constructed of a 2-in standard schedule 40 pipe placed inside...
Two identical double-pipe heat exchangers are
constructed of a 2-in standard schedule 40 pipe placed inside a
3-in standard pipe. The length of the exchangers is 10 ft; 40
gal/min of water initially at 80◦F is to be heated by passing
through the inner
pipes of the exchangers in a series arrangement, and 30 gal/min of
water at 120◦F and 30 gal/min of water at 200◦F are available to
accomplish the heating. The two heating streams may be mixed in...
Find the diameter of a pipe of length ‘X’ when the rate of flow of water...
Find the diameter of a pipe of length ‘X’ when the rate of flow
of water through the pipe is ‘Q’ and the head lost due to friction
is ‘4X’. Take the value of C = 1 in Chezy’s formula. Illustrate the
resut of diameter of pipe and also conclude the discharge value for
varying cross section of pipe, and the relationship between
diameter of pipe and pressure of flow.
A double-pipe heat exchanger is used to condense steam at 40°C saturation temperature. Water at an...
A double-pipe heat exchanger is used to condense steam at 40°C
saturation temperature. Water at an average bulk temperature of
20°C flows at 2 m/s through the inner tube (copper, 2.54 cm ID,
3.05 cm OD). Steam at its saturation temperature flows in the
annulus formed between the outer surface of the inner tube and
outer tube of 6 cm ID. The average heat transfer coefficient of the
condensing steam is 6,000 W/m2 ? K, and the thermal
resistance of...
A counter-flow double-pipe heat exchanger is to heat water from 20ºC to 80ºC at a rate...
A counter-flow double-pipe heat exchanger is to heat water from
20ºC to 80ºC at a rate of 1.2 kg/s. The heating is to be
accomplished by geothermal water available at 160ºC at a mass flow
rate of 2 kg/s. The inner tube is thin-walled, and has a diameter
of 1.5 cm. If the overall heat transfer coefficient of the heat
exchanger is 640 W/(m2.ºC), determine the length of the
heat exchanger required to achieve the desired heating using the
effectiveness-NTU...
A heat exchanger with one body and eight pipe passes is designed. Water flows from the...
A heat exchanger with one body and eight pipe passes
is designed. Water flows from the exhaust gas pipes as cold fluid
by the body as cold fluid. Exhaust gas to the system at 210 °
C
and entering at a temperature of 140 ° C
The heat transfer coefficient is 392 W / m2K. On the other hand,
water enters 16 iron (k = 38 W / mK) pipes with an inner diameter
and outer diameter of 32 mm...
A 2 in schedule 40 pipe insulated with 1 in of 85% magnesia is carrying a...
A 2 in schedule 40 pipe insulated with 1 in of 85% magnesia is
carrying a fluid at 800°F. The insulated pipe passes through a room
at 80°F, and the outside surface of the magnesia is at 100°F.
Please calculate
The total heat loss per linear foot of pipe (in Btu/h),
The temperature of the inside wall of the pipe (in *F), and
The heat transfer coefficient between the fluid inside the pipe
and the inside pipe wall (in Btu/h?ft2?F°)....
A counter-flow double-pipe heat exchanger is heating water from 20 to 80 C at a rate...
A counter-flow double-pipe heat exchanger is heating water from
20 to 80 C at a rate of 1.2 kg/s. The heating is provided by water
at 160 C and a rate of 2 kg/s. The inner tube has a diameter of 1.5
cm, and the U is 640 W/m2 K. Use the effectiveness-NTU method to
determine the length of the heat exchanger required.
Water Cost (in$) Number of house (fi) 20 -<40 16 40 -< 60 9 60 -<...
Water Cost (in$)
Number of house (fi)
20 -<40
16
40 -< 60
9
60 -< 80
12
80 - < 100
10
Total
47
1.Calculate the mean cost of water.
2.Calculate the variance.
3.Calculate the mode
A liquid at 300 F flows through a 3-in. steel pipe (schedule 40) covered with a...
A liquid at 300 F flows through a 3-in. steel pipe (schedule 40)
covered with a ½ in. thickness of asbestos insulation. The ambient
temperature is 80 F. The inside surface film coefficient is 40
Btu/hr-sq ft-F, and the outside surface film coefficient is 4.0
Btu/hr-sq ft-F. The thermal conductivities of steel and asbestos
can be taken as 25 and 0.11 Btu/hr-ft-F respectively. What's the
heat loss per foot length of the pipe?
A liquid at 300 F flows through a 3-in. steel pipe (schedule 40) covered with a...
A liquid at 300 F flows through a 3-in. steel pipe (schedule 40)
covered with a ½ in. thickness of asbestos insulation. The ambient
temperature is 80 F. The inside surface film coefficient is 40
Btu/hr-sq ft-F, and the outside surface film coefficient is 4.0
Btu/hr-sq ft-F. The thermal conductivities of steel and asbestos
can be taken as 25 and 0.11 Btu/hr-ft-F respectively. What's the
heat loss per foot length of the pipe?
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