Question

Steel pipe 1 cm thick, 1.0 m long, and 5 cm inside diameter, covered with 2 cm thick insulation. The wall temperature in the steel pipe is 100 °C. The ambient temperature around the insulated pipe is 24 °C. The convection heat transfer coefficient outside the insulation surface is 50 W/(m² K). The thermal conductivity of steel is 54 W/(m K), and the thermal conductivity of the insulation is 0.04 W/(m K). Count; a. Heat loss per meter of pipe = Answer watt. b. Temperature between steel pipe and insulation. = Answer

          Steel pipe 1 cm thick, 1.0 m long, and 5 cm inside diameter, covered with 2 cm thick insulation. The wall temperature in the steel pipe is 100 °C. The ambient temperature around the insulated pipe is 24 °C. The convection heat transfer coefficient outside the insulation surface is 50 W/(m² K). The thermal conductivity of steel is 54 W/(m K), and the thermal conductivity of the insulation is 0.04 W/(m K). Count;
a. Heat loss per meter of pipe = Answer
watt.
b. Temperature between steel pipe and insulation. = Answer

Show more…

Added by Lauren V.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Madhur L

07/03/2023

Step 1

We can use the formula for heat loss through a cylindrical wall: $$Q = \frac{2 \pi k L (T_1 - T_2)}{\ln(r_2 / r_1)}$$ Where: - $Q$ is the heat loss (W) - $k$ is the thermal conductivity (W/(m K)) - $L$ is the length of the pipe (m) - $T_1$ is the temperature Show more…

Show all steps

lock

Thanks for your feedback!

Steel pipe 1 cm thick, 1.0 m long, and 5 cm inside diameter, covered with 2 cm thick insulation. The wall temperature in the steel pipe is 100 °C. The ambient temperature around the insulated pipe is 24 °C. The convection heat transfer coefficient outside the insulation surface is 50 W/(m² K). The thermal conductivity of steel is 54 W/(m K), and the thermal conductivity of the insulation is 0.04 W/(m K). Count; a. Heat loss per meter of pipe = Answer watt. b. Temperature between steel pipe and insulation. = Answer

Play audio

Feedback

Powered by NumerAI

Madhur L and 92 other subject Physics 101 Mechanics educators are ready to help you.

Ask a new question

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Recommended Videos

Recommended Textbooks

Transcript

Ace is your personal tutor. It breaks down any question with clear steps so you can learn.

Start Using Ace

Continue solving this problem

Create a free account to:

View full step-by-step solution
Ask follow-up questions with Ace AI
Save progress and study later