Question

A stainless steel pipe [thermal conductivity = 17 W/(m.C)] is being used to convey heated oil....

A stainless steel pipe [thermal conductivity = 17 W/(m.C)] is being used to convey heated oil. The inside surface temperature is 13 degrees C. The pipe is 2 cm thick with an inside diameter of 8 cm. The pipe is insulated with 0.04m thick insulation [thermal conductivity = 0.035 W/(m.C)]. The outer insulation temperature is 25 degrees C. Calculate the temperature of the interface between steel and insulation, assume steady-state conditions.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A 2 cm thick steel pipe (thermal conductivity = 43 W/[m.C]) with 6 cm inside diameter...
A 2 cm thick steel pipe (thermal conductivity = 43 W/[m.C]) with 6 cm inside diameter is being used to convey steam from a boiler to process equipment for a distance of 40 m. The inside pipe surface temperature is 115 degrees C, and the outside pipe surface temperature is 90 degrees C. Calculate the total heat loss to the surroundings under steady-state conditions.
A 2.5 cm inside diameter pipe is being used to convey a liquid food at 80ºC....
A 2.5 cm inside diameter pipe is being used to convey a liquid food at 80ºC. The inside convective heat transfer coefficient is 10W/(m2ºC). The pipe (0.5 cm thick) is made of steel (thermal conductivity = 43W/mºC). The outside ambient temperature is 20ºC. The outside convective heat-transfer coefficient is 100 /(m2ºC). Calculate the overall heat transfer coefficient and the heat loss from 1 m length of the pipe.
Steam at an average temperature of ?∞= 400°C flows through a steel pipe. The inner and...
Steam at an average temperature of ?∞= 400°C flows through a steel pipe. The inner and outer radii of the pipe are r1 = 4 cm and r2 = 4.5 cm, respectively, and the outer surface of the pipe is insulated with a layer of 50 mm thick-calcium silicate of thermal conductivity of k = 0.5 W/m.K, and is maintained at 350 °C. If the convection heat transfer coefficient on the inner surface of the pipe is h = 65...
consider a 0.8 cm thick steel plate with a thermal conductivity of 50W/m-k.When the inside surface...
consider a 0.8 cm thick steel plate with a thermal conductivity of 50W/m-k.When the inside surface of the plate is subjected to a uniform heat flux 0f 5*104 w/m2 the oter surface temperature of the plate is measured to be 110c under steady operating condition a)express the differential equation and the boundary conditions for steady one dimensional heat conduction through the wall b)obtain the relation for the variation of temperature in the plate by solving the differential equation. c)evaluate the...
A pipe is transporting saturated steam at 1 bar (100°C) . The pipe has an inside...
A pipe is transporting saturated steam at 1 bar (100°C) . The pipe has an inside diameter of 100 mm with a 9 mm thick wall. The pipe is mild steel with a thermal conductivity of 80 W m-1 K-1. Covering the pipe is a 20 mm thick layer of polythene insulation with a thermal conductivity of 0.04 W m-1 K-1. The convective heat transfer coefficient of the steam is 513.4 W m-2 K-1. The convective heat transfer coefficient of...
A flat wall is exposed to an environmental temperature of 38 degrees C. The wall is...
A flat wall is exposed to an environmental temperature of 38 degrees C. The wall is covered with a layer of insulation 2.5 cm thick whose thermal conductivity is 1.8 W/(m.K), and the temperature of the wall on the inside of the insulation is 320 degrees C. The wall loses heat to the environment by convection. Compute the value of the convection heat transfer coefficient that must be maintained on the outer surface of the insulation to ensure that the...
A pipeline, used for the transport of crude oil, is buried in the earth (k =...
A pipeline, used for the transport of crude oil, is buried in the earth (k = 0.52 W/m-K) such that its centerline is a distance of 1.4 m below the surface. The pipe has an outer diameter of 0.5 m and is insulated with a layer of cellular glass 100 mm thick. What is the heat loss per unit length of pipe when heated oil at 130°C flows through the pipe and the surface of the earth is at a...
The thermal conductivity of a sheet of rigid,extruded insulation is k = 0.020 W/(m*K). The measured...
The thermal conductivity of a sheet of rigid,extruded insulation is k = 0.020 W/(m*K). The measured temperature difference across a 30-mm-thick sheet of the material is T1-T2=10 C. a.) Assuming 1-D, steady state conditions withouth thermal energy generation in the material, what is the heat flux through a 2 m x 3 m sheet of the insulation? b.) What would be the effect on the rate of heat transfer through the sheet if a material with a relatively higher thermal...
Heat Removal of a Cooling Coil. A cooling coil of 1.0 ft of 304 stainless-steel tubing...
Heat Removal of a Cooling Coil. A cooling coil of 1.0 ft of 304 stainless-steel tubing having an inside diameter of 0.25 in. and an outside diameter of 0.40 in. is being used to remove heat from a bath. The temperature at the inside surface of the tube is 40 degrees fahrenheit and is 80 degrees fahrenheit on the outside. The thermal conductivity of 304 stainless steel is a function of temperature: k=7.75+7.78 x 10^-3T where k is in btu/h*ft*fahrenheit...
Water flows through a pipe at an average temperature of T =50°C. The inner and outer...
Water flows through a pipe at an average temperature of T =50°C. The inner and outer radii of the pipe are r1 = 6 cm and r2 = 6.5 cm, respectively. The outer surface of the pipe is wrapped with a thin electric heater that consumes 300 W per m length of the pipe. The exposed surface of the heater is heavily insulated so that the entire heat generated in the heater is transferred to the pipe. Heat is transferred...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT