Calculate the total thermal resistance between hot water and the surrounding ambient air for the insulated pipe as shown in the figure. Consider the length of the pipe to be 10 m. The air is flowing across at 0.6 m/s. Hot water has a mean velocity of 0.05 m/s and an average convection coefficient of 118 W/m².K. Assume the film temperature of the air to be same as the ambient temperature. Assume the bulk-mean temperature of water to be 50°C. Also assume that the outer surface (at D3) and the inner surface (at D₁) are isothermal. 0.11 K/W Water V Insulation k;= 0.5 W/m-K D₁ = 20 mm D₂ = 25 mm D₂ = 50 mm Pipe, k = 18 W/m.K Ambient air, 20°C
Calculate the total thermal resistance between hot water and the surrounding ambient air for the insulated pipe as shown in the figure. Consider the length of the pipe to be 10 m. The air is flowing across at 0.6 m/s. Hot water has a mean velocity of 0.05 m/s and an average convection coefficient of 118 W/m².K. Assume the film temperature of the air to be same as the ambient temperature. Assume the bulk-mean temperature of water to be 50°C. Also assume that the outer surface (at D3) and the inner surface (at D₁) are isothermal. 0.11 K/W Water V Insulation k;= 0.5 W/m-K D₁ = 20 mm D₂ = 25 mm D₂ = 50 mm Pipe, k = 18 W/m.K Ambient air, 20°C
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.
Chapter7: Forced Convection Inside Tubes And Ducts
Section: Chapter Questions
Problem 7.16P
Related questions
Question
answer=correct
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Recommended textbooks for you
Principles of Heat Transfer (Activate Learning wi…
Mechanical Engineering
ISBN:
9781305387102
Author:
Kreith, Frank; Manglik, Raj M.
Publisher:
Cengage Learning
Principles of Heat Transfer (Activate Learning wi…
Mechanical Engineering
ISBN:
9781305387102
Author:
Kreith, Frank; Manglik, Raj M.
Publisher:
Cengage Learning