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Question 3 34 pts ro 1 ri = 0.05m A pipe with surface temperature T1 -...
Question 2 33 pts TT T. An iron pipe is covered by ceramic insulation. The inner...
Question 2 33 pts TT T. An iron pipe is covered by ceramic insulation. The inner radius, ri of the metal pipe is equal to 0.04 m, while its outer radius, re, is equal to 0.10 m. On the other hand, the ceramic insulation has a thickness of 0.04 m. If the inner and outer temperatures, Ti and To, are kept constant at 400 K and 323 K respectively, find Tc in Kelvin. The length of the pipe is 10...
ro ri = 0.05m 1 A pipe with surface temperature T1 = 380 K is wrapped...
ro ri = 0.05m 1 A pipe with surface temperature T1 = 380 K is wrapped with 0.09 m of glass fiber pipe insulation. The outer surface temperature of the insulation, T2 is equal to 354 K and its emissivity is equal to 0.74. The insulation is also subject to natural convection with a bulk fluid temperature of 298 K and h = 1W/m2-K. For a pipe length of 100 m, and assuming that the room temperature is similar to...
The interfacial conductance for ceramic is hc=5000W/m^2-k Incorrect Question 2 0/33 pts FIT 5 T An...
The interfacial conductance for ceramic is
hc=5000W/m^2-k
Incorrect Question 2 0/33 pts FIT 5 T An iron pipe is covered by ceramic insulation. The inner radius, ri of the metal pipe is equal to 0.05 m. while its outer radius, rc, is equal to 0.09 m. On the other hand, the ceramic insulation has a thickness of 0.04 m. If the inner and outer temperatures, Ti and To, are kept constant at 384 K and 341 K, respectively, find Te...
Problem : A cryogenic flui d is flowing in a 304 SS pipe. The pipe is...
Problem
:
A cryogenic flui
d is flowing in a
304 SS
pipe.
The pipe is insulated
on its outside surface
with
6
-
mm thick,
evacuated,
aluminum foil/glass mat insulation.
(“Evacuated” means a partial vacuum is drawn on the
insulation to
remove air that would otherwise fill
pores inside the insulation.)
The pipe
inside diameter
is 127 mm; it’s outside diameter is 138 mm.
The
fluid temperature is
-
173
o
C
.
T
he
air temperature
outside the...
3. CIN: A 50 m long section of a steam pipe at 15°C. The average temperature...
3. CIN: A 50 m long section of a steam pipe at 15°C. The average temperature of the outer surface of combined heat transfer coefficient or the rate of heat loss from the steam plp generated in an natural gas furnance $0.52/therm (1 therm = 105, 0.035 W/mK) needed in order to say remain constant at 150°C. (10 marks) For a steam pipe whose outer diameter is 10 cm passes through an open space mperature of the outer surface of...
Problem 3 (30): Steam at Too,1 340 °C flows in a cast iron pipe [k- 80 W/m.°C] whose inner and outer diameter are Di 6 cm and D2 -8 cm, respectively. The pipe is covered with a 4-cm thick glass wool...
Problem 3 (30): Steam at Too,1 340 °C flows in a cast iron pipe [k- 80 W/m.°C] whose inner and outer diameter are Di 6 cm and D2 -8 cm, respectively. The pipe is covered with a 4-cm thick glass wool insulation [k-0.05 W/ m°C]. Heat is lost to the surroundings at Too,2 - 21°C by natural convection and radiation, with a combined heat transfer coefficient of h- 18 W/m2 °C. Taking the heat transfer coefficient inside the pipe to...
please answer both. thanks! Question 13 1 pts How much heat is transferred in 12 minutes...
please answer
both. thanks!
Question 13 1 pts How much heat is transferred in 12 minutes through a glass window of size 1.1 m by 1.8 m, if its thickness is 0.8 cm and the inside and outside temperatures are 24°C and 5°C respectively. Write your answer in MJ. Thermal conductivity of glass 0.8 W/m°C 1 pt A spaceship (consider it to be rectangular) is of size 9 x 10 x9 (in meters). Its interior is maintained at a comfortable...
Question 2 33 pts TT T. An iron pipe is covered by ceramic insulation. The inner radius, ri of the metal pipe is equal to 0.04 m, while its outer radius, re, is equal to 0.10 m. On the other hand, the ceramic insulation has a thickness of 0.04 m. If the inner and outer temperatures, Ti and To, are kept constant at 400 K and 323 K respectively, find Tc in Kelvin. The length of the pipe is 10...
ro ri = 0.05m 1 A pipe with surface temperature T1 = 380 K is wrapped with 0.09 m of glass fiber pipe insulation. The outer surface temperature of the insulation, T2 is equal to 354 K and its emissivity is equal to 0.74. The insulation is also subject to natural convection with a bulk fluid temperature of 298 K and h = 1W/m2-K. For a pipe length of 100 m, and assuming that the room temperature is similar to...
The interfacial conductance for ceramic is
hc=5000W/m^2-k
Incorrect Question 2 0/33 pts FIT 5 T An iron pipe is covered by ceramic insulation. The inner radius, ri of the metal pipe is equal to 0.05 m. while its outer radius, rc, is equal to 0.09 m. On the other hand, the ceramic insulation has a thickness of 0.04 m. If the inner and outer temperatures, Ti and To, are kept constant at 384 K and 341 K, respectively, find Te...
Problem
:
A cryogenic flui
d is flowing in a
304 SS
pipe.
The pipe is insulated
on its outside surface
with
6
-
mm thick,
evacuated,
aluminum foil/glass mat insulation.
(“Evacuated” means a partial vacuum is drawn on the
insulation to
remove air that would otherwise fill
pores inside the insulation.)
The pipe
inside diameter
is 127 mm; it’s outside diameter is 138 mm.
The
fluid temperature is
-
173
o
C
.
T
he
air temperature
outside the...
3. CIN: A 50 m long section of a steam pipe at 15°C. The average temperature of the outer surface of combined heat transfer coefficient or the rate of heat loss from the steam plp generated in an natural gas furnance $0.52/therm (1 therm = 105, 0.035 W/mK) needed in order to say remain constant at 150°C. (10 marks) For a steam pipe whose outer diameter is 10 cm passes through an open space mperature of the outer surface of...
Problem 3 (30): Steam at Too,1 340 °C flows in a cast iron pipe [k- 80 W/m.°C] whose inner and outer diameter are Di 6 cm and D2 -8 cm, respectively. The pipe is covered with a 4-cm thick glass wool insulation [k-0.05 W/ m°C]. Heat is lost to the surroundings at Too,2 - 21°C by natural convection and radiation, with a combined heat transfer coefficient of h- 18 W/m2 °C. Taking the heat transfer coefficient inside the pipe to...
please answer
both. thanks!
Question 13 1 pts How much heat is transferred in 12 minutes through a glass window of size 1.1 m by 1.8 m, if its thickness is 0.8 cm and the inside and outside temperatures are 24°C and 5°C respectively. Write your answer in MJ. Thermal conductivity of glass 0.8 W/m°C 1 pt A spaceship (consider it to be rectangular) is of size 9 x 10 x9 (in meters). Its interior is maintained at a comfortable...
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