Question 6 A steel pipe (k = 48 W/m-K) of a heating system carries wet steam at 120 °C. The inner and outer diameters of the pipe are 15 cm and 16 cm respectively. The pipe is insulated on the outside with rockwool insulation (k = 0.05 W/m-K) of thickness 8 cm. The ambient air temperature is 32 °C. The outside heat transfer coefficient is 20 W/m2-K. The thermal resistance between the inner pipe surface and the steam is negligible. Calculate the rate of heat flow (in W) from the steam to the ambient over a 5 m length of pipe. Round your answer to 2 decimal places. Add your answer Follow-up question to Question 6, calculate the temperature (in °C) of the outer surface of the insulation. Round your answer to 2 decimal places. Add your answer Follow-up question to Question 6, calculate the rate of condensation of steam (in kg/hr) over the 5-m length of pipe if the latent heat of steam is 2200 kJ/kg. Rc und your answer to 2 decimal places. Add your answer
Question 6 A steel pipe (k = 48 W/m-K) of a heating system carries wet steam at 120 °C. The inner and outer diameters of the pipe are 15 cm and 16 cm respectively. The pipe is insulated on the outside with rockwool insulation (k = 0.05 W/m-K) of thickness 8 cm. The ambient air temperature is 32 °C. The outside heat transfer coefficient is 20 W/m2-K. The thermal resistance between the inner pipe surface and the steam is negligible. Calculate the rate of heat flow (in W) from the steam to the ambient over a 5 m length of pipe. Round your answer to 2 decimal places. Add your answer Follow-up question to Question 6, calculate the temperature (in °C) of the outer surface of the insulation. Round your answer to 2 decimal places. Add your answer Follow-up question to Question 6, calculate the rate of condensation of steam (in kg/hr) over the 5-m length of pipe if the latent heat of steam is 2200 kJ/kg. Rc und your answer to 2 decimal places. Add your answer
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter2: Steady Heat Conduction
Section: Chapter Questions
Problem 2.30P: 2.30 An electrical heater capable of generating 10,000 W is to be designed. The heating element is...
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![Question 6
A steel pipe (k = 48 W/m-K) of a heating system carries wet steam at 120 °C. The inner and outer
diameters of the pipe are 15 cm and 16 cm respectively. The pipe is insulated on the outside with
rockwool insulation (k = 0.05 W/m K) of thickness 8 cm. The ambient air temperature is 32 °C. The
outside heat transfer coefficient is 20 W/m2-K. The thermal resistance between the inner pipe surface
and the steam is negligible. Calculate the rate of heat flow (in W) from the steam to the ambient over a
5 m length of pipe.
Round your answer to 2 decimal places.
Add your answer
Follow-up question to Question 6, calculate the temperature (in °C) of the outer surface of the
insulation.
Round your answer to 2 decimal places.
Add your answer
Follow-up question to Question 6, calculate the rate of condensation of steam (in kg/hr) over the 5-m
lenzth of pipe if the latent heat of steam is 2200 k/kg.
Rc und your answer to 2 decimal places.
Add your answer](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1f022806-99a9-412f-b4e0-60ea1f7d7945%2F5c0e5d2a-267d-4d51-a465-7a5de0cf5264%2Fyz8dg9g_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Question 6
A steel pipe (k = 48 W/m-K) of a heating system carries wet steam at 120 °C. The inner and outer
diameters of the pipe are 15 cm and 16 cm respectively. The pipe is insulated on the outside with
rockwool insulation (k = 0.05 W/m K) of thickness 8 cm. The ambient air temperature is 32 °C. The
outside heat transfer coefficient is 20 W/m2-K. The thermal resistance between the inner pipe surface
and the steam is negligible. Calculate the rate of heat flow (in W) from the steam to the ambient over a
5 m length of pipe.
Round your answer to 2 decimal places.
Add your answer
Follow-up question to Question 6, calculate the temperature (in °C) of the outer surface of the
insulation.
Round your answer to 2 decimal places.
Add your answer
Follow-up question to Question 6, calculate the rate of condensation of steam (in kg/hr) over the 5-m
lenzth of pipe if the latent heat of steam is 2200 k/kg.
Rc und your answer to 2 decimal places.
Add your answer
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