Answered: a) Calculate the rate of heat transfer…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Question

(a) Calculate the rate of heat transfer by radiation from a car radiator at 110°C into a 50.0ºC environment, if the radiator has an emissivity of 0.750 and a 1.20-m^2 surface area. (b) Is this a significant fraction of the heat transfer by an automobile engine? To answer this, assume a horsepower of 200hp (1.5kW) and the efficiency of automobile engines as 25%.

Expert Solution

Step 1 of 3.

(a)

To find:

The rate of heat transfer.

Given:

The temperature of the radiator is $T_{1} = 110 ° C = 383 K$ .

The temperature of the environment is $T_{2} = 50 ° C = 323 K$ .

The emissivity of the radiator is $ε = 0.75$ .

The surface area of the radiator is $A = 1.2 m^{2}$ .

The stephen-Boltzmann constant is $σ = 5.67 \times 10^{- 8} W / m^{2} . K^{4}$ .

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

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.

Similar questions