Question

Which of the following is least likely to affect the convection heat transfer coefficient? Thermal conductivity...

Which of the following is least likely to affect the convection heat transfer coefficient?

Thermal conductivity of the fluid

Geometry of the solid body

The roughness of the solid surface

Type of fluid motion (laminar or turbulent)

Fluid velocity

Density of the solid body

Dynamic viscosity of the fluid

0 0
Add a comment Improve this question Transcribed image text
Answer #1

The factors which affect the convection heat transfer coefficient are:

Velocity of the fluid

Type of fluid flow(Laminar or turbulent)

Geometric shape

Surface condition(surface roughness)

Viscosity of the fluid

Thermal conductivity of the fluid

Hence Density of the solid body doesn't affect the convection heat transfer coefficient

Add a comment
Know the answer?
Add Answer to:
Which of the following is least likely to affect the convection heat transfer coefficient? Thermal conductivity...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • 1) The convection coefficient, (h) for external convection heat transfer depends on the following (with units...

    1) The convection coefficient, (h) for external convection heat transfer depends on the following (with units in SI of Watts/(m2 Kelvin): The characteristic length, L The fluid thermal conductivity, k The average fluid velocity, V The fluid viscosity, μ The fluid density, ρ The fluid specific heat, cp Using the Buckingham Pi Theorem, determine a set of dimensionless groups that can be used to correlate test data for this problem. Please show all of your work for this problem (i.e....

  • (2 pts) Heat is transferred from a hot fluid (temperature T1 and heat transfer coefficient h2)...

    (2 pts) Heat is transferred from a hot fluid (temperature T1 and heat transfer coefficient h2) through a plane wall of thickness 8, surface area A and the thermal conductivity k. The thermal resistance for the set up is + (a) AC ) (b) A (i + + ) (c) 2 (na + + n2) (d) A (na + b +h2) (2 pts) An increase in convective heat transfer coefficient over a fin will (a) increase effectiveness (b) decrease effectiveness...

  • During air cooling of oranges, grapefruit, and tangelos, the heat transfer coefficient for combined convection, radiation,...

    During air cooling of oranges, grapefruit, and tangelos, the heat transfer coefficient for combined convection, radiation, and evaporation for air velocities of 0.11<V< 0.33 m/s is determined experimentally and is expressed as h = 5.05 KairRe131D, where the diameter Dis 0.1 m. Oranges are cooled by refrigerated air at 5°C and 1 atm at a velocity of 0.3 m/s. Given: The thermal conductivity of the orange is given to be k = 0.50 W/m°C. The thermal conductivity and the kinematic...

  • During air cooling of oranges, grapefruit, and tangelos, the heat transfer coefficient for combined convection, radiation,...

    During air cooling of oranges, grapefruit, and tangelos, the heat transfer coefficient for combined convection, radiation, and evaporation for air velocities of 0.11<V 0.33 m/s is determined experimentally and is expressed as h=5.05 kairRe13/D, where the diameter Dis 0.1 m. Oranges are cooled by refrigerated air at 5°C and 1 atm at a velocity of 0.3 m/s. Given: The thermal conductivity of the orange is given to be k = 0.50 W/m-°C. The thermal conductivity and the kinematic viscosity of...

  • 1 During air cooling of oranges, grapefruit, and tangelos, the heat transfer coefficient for combined convection,...

    1 During air cooling of oranges, grapefruit, and tangelos, the heat transfer coefficient for combined convection, radiation, and evaporation for air velocities of 0.11 < V< 0.33 m/s is determined experimentally and is expressed as h=5.05 kairRe131D, where the diameter Dis 0.1 m. Oranges are cooled by refrigerated air at 5°C and 1 atm at a velocity of 0.3 m/s. Given: The thermal conductivity of the orange is given to be k = 0.50 W/m-°C. The thermal conductivity and the...

  • During air cooling of oranges, grapefruit, and tangelos, the heat transfer coefficient for combined convection, radiation,...

    During air cooling of oranges, grapefruit, and tangelos, the heat transfer coefficient for combined convection, radiation, and evaporation for air velocities of 0.11<V< 0.33 m/s is determined experimentally and is expressed as h=5.05 kairRe13/D, where the diameter Dis 0.1 m. Oranges are cooled by refrigerated air at 5°C and 1 atm at a velocity of 0.3 m/s. Given: The thermal conductivity of the orange is given to be k = 0.50 W/m-°C. The thermal conductivity and the kinematic viscosity of...

  • During air cooling of oranges, grapefruit, and tangelos, the heat transfer coefficient for combined convection, radiation,...

    During air cooling of oranges, grapefruit, and tangelos, the heat transfer coefficient for combined convection, radiation, and evaporation for air velocities of 0.11</<0.33 m/s is determined experimentally and is expressed as h= 5.05 kairRe13/D, where the diameter Dis 0.09 m. Oranges are cooled by refrigerated air at 5°C and 1 atm at a velocity of 0.3 m/s. Given: The thermal conductivity of the orange is given to be k = 0.50 W/m-°C. The thermal conductivity and the kinematic viscosity of...

  • Explain Convection 1. Describe the factors that affect the value of the convection coefficient 2. Explain why and how velocity and thermal boundary layers form 3. Explain how turbulence enhances c...

    Explain Convection 1. Describe the factors that affect the value of the convection coefficient 2. Explain why and how velocity and thermal boundary layers form 3. Explain how turbulence enhances convection heat transfer 4. Describe the significance of the Reynold's number, Nusselt number, and the Prandtl number 5. List common situations where external convection occurs 6. Explain the importance of the film temperature and use it to specify thermophysical properties of a fluid 7. Explain the significance of boundary layer...

  • QUESTION 10 Which option given below is wrong Three modes of heat transfer are: conduction, convection,...

    QUESTION 10 Which option given below is wrong Three modes of heat transfer are: conduction, convection, and radiation. In free convection, the Grashof number is not used as a criterion for laminar and turbulent flow. The conduction heat transfer rate unit is W. The Grashof number in free convection plays the same role as the Reynolds number in forced convection.

  • 4. (25 pts) Water is flowing inside a thin wall, smooth pipe of diameter 0.05 m...

    4. (25 pts) Water is flowing inside a thin wall, smooth pipe of diameter 0.05 m at a mass flowrate of 0.3 kg/s. The water enters the pipe at a mean temperature Tm,i= 80 °C and exits at Tm,o= 80 °C while the pipe surface temperature is maintained at Ts= 20 °C along its entire length. a. Is the flow turbulent or laminar? b. Calculate the average convection heat transfer coefficient inside the tube. c. Calculate the length of the...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT