Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

B. A hair dryer operates with 1600 W of energy supplied to the electric resistance element. While the air is pulled into the hair

image text in transcribed

B. A hair dryer operates with 1600 W of energy supplied to the electric resistance element. While the air is pulled into the hair dryer by a small fan to flow across the resistor, ignore the power consumed by the fan. In steady state operation the inlet conditions from the room air are p=101 kPa and T=298K and the inlet area is large enough to ignore the inlet velocity of the air. Measurements at the exit which has an area of 60 cm indicate the air pressure remains p=101 kPa, with a temperature of T=50.2C and velocity=9.36 m/s. 3. (12 pts) In B, what is the mass flow rate of air? 4. (20 pts) In B, how much energy appears as heat transfer to the room during the operation of this hair dryer Q = m = kg/s kJ/s

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image_2

Step: 3

blur-text-image_3

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Fundamentals of Materials Science and Engineering An Integrated Approach

Authors: David G. Rethwisch

4th Edition

1118214226, 1118061608, 9781118214220, 978-1118061602

More Books

Students also viewed these Mechanical Engineering questions