A hot steel plate with a surface area of 1.93 m2 and a constant surface temperature of 169°C is exposed to ambient air at 21°C. If the convection heat transfer coefficient is 17.1 W/m2· K, what is the rate of heat transfer (in W) from the plate to the air [round your final answer to zero decimal places]?

A hot steel plate with a surface area of 1.93 m2 and a constant surface temperature of 169°C is exposed to ambient air at 21°C. If the convection heat transfer coefficient is 17.1 W/m2· K, what is the rate of heat transfer (in W) from the plate to the air [round your final answer to zero decimal places]?

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.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.56P: A pipe carrying superheated steam in a basement at 10C has a surface temperature of 150C. Heat loss...

See similar textbooks

Similar questions

1.29 A spherical interplanetary probe with a 30-cm diameter contains electronic equipment that dissipates 100 W. If the probe surface has an emissivity of 0.8, what is its surface temperature in outer space? State your assumptions in the calculations.
The heat transfer rate from hot air by convection at 100C flowing over one side of a flat plate with dimensions 0.1m0.5m is determined to be 125 W when the surface of the plate is kept at 30C. What is the average convection heat transfer coefficient between the plate and the air?
A pipe carrying superheated steam in a basement at 10C has a surface temperature of 150C. Heat loss from the pipe occurs by radiation (=0.6) and natural convection (hc=25W/m2K). Determine the percentage of the total heat loss by these two mechanisms.
The inside and outside surfaces of a 1-cm thick, 4-m squared-shaped window glass in winter are 9°C and 1°C, respectively. If the thermal conductivity of the glass is 0.78 W/m-K, determine the heat loss, in kcal, through the glass over a period of 8 hours.
Why is this equation fundamental in the analysis of heat transfer? Why is this a big deal for engineers?
How does the science of heat transfer differ from the science of thermodynamics? Give your answers with real-life practical examples.
Consider a person standing in a breezy room at 20°C. Determine the total rate of heat transfer from this person if the exposed surface area and the average outer surface temperature of the person are 1.6 m2 and 29°C, respectively, and the convection heat transfer coefficient is 6 W/m2 ·°C (Fig. 2–75).
The thermal conductivity of a fluid is 0.09 BTU/ft-h-F having a kinematic viscosity of 0.0215 ft2/h. If the density and specific heat at constant pressure are 53.0 lbm/ft3 and 0.430 BTU/lb-F, respectively, determine the Prandtl number.
There is a cylindical piece of nickel, that is 5 cm in diameter and 10 cm in length, that is initially at 20 degrees Celcius before being dropped into a hot fluid that is at 190 degrees Celcius. Determine the amount of heat gained by the cylinder until its temperature rises to 80 degrees Celcius. Show details in calculations and specify values retrieved from property tables.
1. Consider a person standing in a room at 25°C. Determine the total rate of heat transfer and the heat transfer coefficient from this person if the exposed surface area and the skin temperature of the person are1.7 m 2 and 33°C, respectively, and the convection heat transfer coefficient is 5 W/m 2 · °C. Take the emissivity of the skin and the clothes to be 0.9, and assume the temperature of the inner surfaces of the room to be the same as the air temperature. (complete solution thank you)
For heat transfer purposes, a standing man can be modeled as a 30-cm-diameter, 170-cm-long vertical cylinder with both top and bottom surfaces insulated and with the side surface at an average temperature of 34 °C. For a convection heat transfer coefficient of 15 W/m2∙°C, determine the rate of heat loss from this man by convection in an environment at 20 °C. Round your answer to 2 decimal places.
Hot air at 79.0 oC is blown over a 3-m by 5-m flat surface at 34.9 oC. If the average convection heat transfer coefficient is 58.0 W/m2 oC, determine the rate of heat transfer from the air to the plate, in W. Please keep one decimal and take positive value for the final answer.