Homework Answers
Add Answer to:
a 0.4 m diameter, thin walled steel pipe is used to transport
saturated steam
Problem 3.049...
a) what is the heat loss per unit length from the pipe in W/m? b) Estimate...
a) what is the heat loss per unit length from the pipe in
W/m?
b) Estimate the heat loss per unit length if a 50 mm thick layer
of insulation with a conductivity of 0.058 W/m K. Neglect radiation
for this part.
3. A 0.20-m diameter, thin-walled steel pipe is used to transport saturated steam at a temperature of 486K in a room for which the air temperature is 25°C and convection heat transfer coefficient at the outer surface of...
Pressurized steam at 400 K flows through a long, thin-walled pipe of 0.6-m diameter. The pipe...
Pressurized steam at 400 K flows through a long, thin-walled pipe of 0.6-m diameter. The pipe is enclosed in a concrete (stone mix) casing that is of square cross section and 1.75 m on a side. The axis of the pipe is centered in the casing, and the outer surfaces of the casing are maintained at 300 K. What is the rate of heat loss per unit length of pipe, in W/m? q' = i W/m
Problem 2 (10/30) - Steam at 180 C (saturated) enters a 10 cm diameter, 0.4 mm thick, 150 m long carbon steel pipe which is exposed to the elements. Air flows across the pipe at 10 m/sec. Air emperat...
Problem 2 (10/30) - Steam at 180 C (saturated) enters a 10 cm diameter, 0.4 mm thick, 150 m long carbon steel pipe which is exposed to the elements. Air flows across the pipe at 10 m/sec. Air emperature is 20 C. Convective heat transfer of stem to the pipe is very high. Emissivity of the pipe is estimated at 0.8.Calculate the rate of heat transfer from the pipe. State any assumptions.
Problem 2 (10/30) - Steam at 180 C...
A 6 in. schedule 80 steel pipe (OD=6.62 in.) will be used to transport 450◦F steam...
A 6 in. schedule 80 steel pipe (OD=6.62 in.) will be used to transport 450◦F steam from a boiler house to a new process unit. The pipe will be buried at a depth of 3 ft (to the pipe centerline). The soil at the plant site has an average thermal conductivity of 0.4 Btu/h · ft · ◦F and the minimum expected ground surface temperature is 20◦F. Estimate the rate of heat loss per foot of pipe length for the...
Steam at 150 °C flows in a stainless steel pipe which has a thermal conductivity of...
Steam at 150 °C flows in a stainless steel pipe which has a thermal conductivity of 16 W m-1 K -1 whose inner and outer diameters are 5 and 6 cm respectively. The pipe is covered with 3 cm think insulation having a thermal conductivity of 0.035 W m-1 K -1 . The combined convection and radiation heat transfer coefficient at the outside surface of the insulation is 20 W m-2 K -1 and the surroundings are at 10 °C....
A steel pipe carrying saturated steam at 4000 kpa, is 304.8 mm OD. The pipe is...
A steel pipe carrying saturated steam at 4000 kpa, is 304.8 mm OD. The pipe is 150 m long. Temp outside the pipe is 18 degrees C. It is insulated with formed insulation with thermal conductivity of 0.023 W/m/K. If the design is to allow for condensation of 80 kg of steam per hour, how thick must the insulation be?
Engine oil supplied through a 2-cm-diameter thin walled copper pipe (k = 385 W/kg·ºC) is to...
Engine oil supplied through a 2-cm-diameter thin walled copper pipe (k = 385 W/kg·ºC) is to be heated from 20ºC to 60ºC at a rate of 0.3 kg/s in a double-pipe heat exchanger by condensing steam at a temperature of 130ºC, which is supplied through an outer pipe with a diameter of 4 cm. If the heat exchanger is well insulated, determine the length of the heat exchanger required
Consider a 2.5 cm diameter thin walled horizontal cylindrical pipe that carries chilled water at ...
Consider a 2.5 cm diameter thin walled horizontal cylindrical pipe that carries chilled water at about 5°C. The pipe is very long and is indoors in a climate controlled area with essentially still air. Design an insulation system that will reduce heat gain per unit length of pipe by at least 75% as compared to the heat gain to the bare pipe. Completely specify the insulation system (materials, dimensions, etc.) you design. In your design report, include enough information about...
I. Steam at 220°C İs transported through an AISI 101 0 carbon steel pipe. The inside...
I. Steam at 220°C İs transported through an AISI 101 0 carbon steel pipe. The inside and outside diameters of the pip glass pipe insulation. e are 12 and 13 cm respectively. The pipe is wrapped with 5 cm thick cellular The ambient air temperature is 8°C. The inside and outside convection heat nts are 95 and 15 W/m2-K respectively. The thermal conductivity of the pipe is 60 W/m-K and for the insulation it is 0.072 W/m-K a. Construct the...
PLEASSEEE DRAW A PICTURE l'roblem 1 (45 point diameter of 2.09 em and an outside diameter...
PLEASSEEE DRAW A PICTURE
l'roblem 1 (45 point diameter of 2.09 em and an outside diameter of 2.67 cm. The convective coc and outer pipe surfaces may be taken as 5680 and 22.7 W/m2 oK, respectively. I m air is at 294 K. The thermal conductivity of steel and magnesia are K respectively s) Saturated steam at 0.276 MPa fows inside a steel pipe having an inside e coefficients on the inner The surrounding 42.9 W/m K and .0 675...
a) what is the heat loss per unit length from the pipe in
W/m?
b) Estimate the heat loss per unit length if a 50 mm thick layer
of insulation with a conductivity of 0.058 W/m K. Neglect radiation
for this part.
3. A 0.20-m diameter, thin-walled steel pipe is used to transport saturated steam at a temperature of 486K in a room for which the air temperature is 25°C and convection heat transfer coefficient at the outer surface of...
Pressurized steam at 400 K flows through a long, thin-walled pipe of 0.6-m diameter. The pipe is enclosed in a concrete (stone mix) casing that is of square cross section and 1.75 m on a side. The axis of the pipe is centered in the casing, and the outer surfaces of the casing are maintained at 300 K. What is the rate of heat loss per unit length of pipe, in W/m? q' = i W/m
Problem 2 (10/30) - Steam at 180 C (saturated) enters a 10 cm diameter, 0.4 mm thick, 150 m long carbon steel pipe which is exposed to the elements. Air flows across the pipe at 10 m/sec. Air emperature is 20 C. Convective heat transfer of stem to the pipe is very high. Emissivity of the pipe is estimated at 0.8.Calculate the rate of heat transfer from the pipe. State any assumptions.
Problem 2 (10/30) - Steam at 180 C...
I. Steam at 220°C İs transported through an AISI 101 0 carbon steel pipe. The inside and outside diameters of the pip glass pipe insulation. e are 12 and 13 cm respectively. The pipe is wrapped with 5 cm thick cellular The ambient air temperature is 8°C. The inside and outside convection heat nts are 95 and 15 W/m2-K respectively. The thermal conductivity of the pipe is 60 W/m-K and for the insulation it is 0.072 W/m-K a. Construct the...
PLEASSEEE DRAW A PICTURE
l'roblem 1 (45 point diameter of 2.09 em and an outside diameter of 2.67 cm. The convective coc and outer pipe surfaces may be taken as 5680 and 22.7 W/m2 oK, respectively. I m air is at 294 K. The thermal conductivity of steel and magnesia are K respectively s) Saturated steam at 0.276 MPa fows inside a steel pipe having an inside e coefficients on the inner The surrounding 42.9 W/m K and .0 675...
Most questions answered within 3 hours.
-
(Expected rate of return and risk) Carter Inc. is evaluating a
security. Calculate the investment’s expected...
asked 1 hour ago -
What specific indicators can point to lack of progress for
African Americans in American society?
asked 2 hours ago -
1-The Electrons in a beam are moving at 2.7×108 m/s in an
electric field of 15000...
asked 2 hours ago -
A gas tank is a vertical cylinder. It has a radius of 1m, a
height of...
asked 3 hours ago -
Accent Software faces the following conditions. All of these
support Accent’s use of a market-penetration pricing...
asked 4 hours ago -
A mathematically inclined friend emails you the following
instructions: "Meet me in the cafeteria the first...
asked 4 hours ago -
A monopoly sells in two countries . The demand curves in the two
countries are p1...
asked 5 hours ago -
A .15kg rubber ball is bounced off a wall. Before hitting the
wall, the ball moves...
asked 5 hours ago -
A manufacturing company preparing to build a new plant is
considering three potential locations for it....
asked 5 hours ago -
B. If compound Y has approximately the same values of solubility
in toluene as compound X,...
asked 6 hours ago -
Oscar Inc. has inventory in Japan valued at 39,051,000 Yen one
year ago. One year ago...
asked 6 hours ago -
If Canada suffered from "fundamental disequilibrium," and its
government choose not to devalue its currency, a...
asked 6 hours ago