Bundle: Electricity For Refrigeration, Heating, And Air Conditioning, 10th + Lab Manual For Smith's Electricity For Refrigeration, Heating, And Air Conditioning, 9th
10th Edition
ISBN: 9780357478127
Author: Russell E. Smith
Publisher: Cengage Learning
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Textbook Question
Chapter 1, Problem 9RQ
What type of ladder should the technician use on the job?
- a. aluminum
- b. fiberglass
- c. wood
- d. both a and b
- e. both b and c
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Q4/ A compressor is driven motor by mean of a flat belt of thickness 10 mm and a width of
250 mm. The motor pulley is 300 mm diameter and run at 900 rpm and the compressor
pulley is 1500 mm diameter. The shaft center distance is 1.5 m. The angle of contact of
the smaller pulley is 220° and on the larger pulley is 270°. The coefficient of friction
between the belt and the small pulley is 0.3, and between the belt and the large pulley is
0.25. The maximum allowable belt stress is 2 MPa and the belt density is 970 kg/m³.
(a) What is the power capacity of the drive and (b) If the small pulley replaced by
V-grooved pulley of diameter 300 mm, grooved angle of 34° and the coefficient of
friction between belt and grooved pulley is 0.35. What will be the power capacity in this
case, assuming that the diameter of the large pulley remain the same of 1500 mm.
You are tasked with designing a power drive system to transmit power between a motor and a conveyor belt in a manufacturing facility as illustrated in figure.
The design must ensure efficient power transmission, reliability, and safety. Given the following specifications and constraints, design drive system for this application:
Specifications:
Motor Power: The electric motor provides 10 kW of power at 1,500 RPM.
Output Speed: The output shaft should rotate at 150 rpm.
Design Decisions:
Transmission ratio: Determine the necessary drive ratio for the system.
Shaft Diameter: Design the shafts for both the motor and the conveyor end.
Material Selection: Choose appropriate materials for the gears, shafts.
Bearings: Select suitable rolling element bearings.
Constraints:
Space Limitation:
The available space for the gear drive system is limited to a 1-meter-long section.
Attribute 4 of CEP
Depth of knowledge required
Fundamentals-based, first principles analytical approach…
Chapter 1 Solutions
Bundle: Electricity For Refrigeration, Heating, And Air Conditioning, 10th + Lab Manual For Smith's Electricity For Refrigeration, Heating, And Air Conditioning, 9th
Ch. 1 - True or False: A heating and air-conditioning...Ch. 1 - What is a live electrical circuit?Ch. 1 - Which of the following voltages will a...Ch. 1 - Electrical shock occurs when a person _________....Ch. 1 - What are the important elements of electrical...Ch. 1 - Prob. 6RQCh. 1 - Which of the following is the standard by which...Ch. 1 - Prob. 8RQCh. 1 - What type of ladder should the technician use on...Ch. 1 - What precautions should be taken when you see a...
Ch. 1 - True or False: It is recommended that at least one...Ch. 1 - True or False: The correct fuse size for an...Ch. 1 - What is the difference between a two-prong plug...Ch. 1 - Which prong on a three-prong plug is the ground?...Ch. 1 - True or False: A grounding adapter does no good if...Ch. 1 - An electrical device that will open an electrical...Ch. 1 - True or False: Receptacles used on the job site...Ch. 1 - What precautions should you use when working in an...Ch. 1 - What is the difference between a fuse and a...Ch. 1 - List at least five electrical safety rules that...
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