Bundle: Electricity For Refrigeration, Heating, And Air Conditioning, 10th + Refrigeration And Air Conditioning Technology, 8th + Mindtap Hvac, 4 ... Whitman/johnson's Refrigeration And Air Condi
8th Edition
ISBN: 9780357261385
Author: Russell E. Smith
Publisher: Cengage Learning
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Textbook Question
Chapter 30, Problem 1RQ
The material often used to manufacture electric strip heater coils is ____.
Expert Solution & Answer
To determine
The material which is used for the manufacturing of electric strip heater coils.
Answer to Problem 1RQ
The material which is used for the manufacturing of electric strip heater coils is Nichrome.
Explanation of Solution
An electric heater is a heat producing device. In an electric heater there is a conversion of electric energy into the heat energy. Heat is being produced by the resistance of the material which is connected in an electric circuit. The materials being used in an electric heater should have high electric resistance and must be a good conductor of heat and electricity. It should also possess a high melting point. Since the heat is produced at an elevated temperature in the heating element. Hence it should have a property to withstand at such high temperature. Generally, a nichrome wire is used in an electric heater for the purpose of heating. Nichrome is an alloy of Nickel and Chromium. It also possesses good mechanical strength. Therefore, it is better option for using it in an electric heater.
Conclusion:
Nichrome is used to manufacture electric strip heater coils due to its good properties which are desired for the perfect heating coils.
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Students have asked these similar questions
Calculate the vertical cross section moment of inertia for Orientations 1 and 2. State which number is the higher moment of inertia using equation 1. Given: b1=1 in, h1=1.5 in, b2=1.5 in, h2=1 in, t=0.0625 in. Then calculate the maximum deflection for a point load of 8 lb on the free end of the beam using equation 2. Given: E=10.1*10^6 psi.
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1-69E The pressure in a natural gas pipeline is measured by the manometer shown in Fig. P1-69E with one of the arms open to the
atmosphere where the local atmospheric pressure is 14.2 psia. Determine the absolute pressure in the pipeline.
Natural
Gas
10 in
6 in
FIGURE P1-69E
Mercury
SG= 13.6
Air
2 in
+
25 in
Water
B
150 mm
120 mm
PROBLEM 15.193
The L-shaped arm BCD rotates about the z axis with a constant
angular velocity @₁ of 5 rad/s. Knowing that the 150-mm-
radius disk rotates about BC with a constant angular velocity
@2 of 4 rad/s, determine (a) the velocity of Point A, (b) the
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V₁ =-(0.600 m/s)i + (0.750 m/s)j - (0.600 m/s)k
a=-(6.15 m/s²)i- (3.00 m/s²)j
Chapter 30 Solutions
Bundle: Electricity For Refrigeration, Heating, And Air Conditioning, 10th + Refrigeration And Air Conditioning Technology, 8th + Mindtap Hvac, 4 ... Whitman/johnson's Refrigeration And Air Condi
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