Automotive Technology: A Systems Approach - With Manual and Access
6th Edition
ISBN: 9781305513235
Author: ERJAVEC
Publisher: Cengage
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Chapter 2, Problem 12RQ
Applicant A goes to a quiet place immediately after an interview and reflects on what just took place. Applicant B sends a letter of thanks to the interviewer if he has not heard back from the employer within 2 weeks. Who is doing the right thing?
- A only
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An 8-foot ion exchange bed needs to be backwashed with water to remove impurities. The particles have a density of 1.24 g/cm³ and an average size of 1.1 mm.
Calculate:
a. The minimum fluidization velocity using water at 30°C?
b. The velocity required to expand the bed by 30%?
Assumptions: The ion exchange bed particles are spherical (sphericity = 1.1), and the minimum fluidization porosity (ɛM) is 0.3.
Notes:
At 30°C, the viscosity (μ) of water is 0.797 cP, and the density (ρ) is 0.995 g/cm³.
fluidized bed reactor uses a solid catalyst with a particle diameter of 0.25 mm, a bulk density of 1.50 g/mL, and a sphericity of 0.90. Under packed bed conditions, the porosity is 0.35, and the bed height is 2 m. The gas enters from the bottom of the reactor at a temperature of 600°C, with a viscosity of 0.025 cP and a density of 0.22 lb/ft³. At minimum fluidization, the porosity reaches 0.45.
Calculate:
a. The minimum superficial velocity (VM) of the gas entering the fluidized column.
b. The bed height if V = 2 VM
c. The pressure drop under conditions where V =2.5 VM
A fluidized bed reactor uses a solid catalyst with a particle diameter of 0.25 mm, a bulk density of 1.50 g/mL, and a sphericity of 0.90. Under packed bed conditions, the porosity is 0.35, and the bed height is 2 m. The gas enters from the bottom of the reactor at a temperature of 600°C, with a viscosity of 0.025 cP and a density of 0.22 lb/ft³. At minimum fluidization, the porosity reaches 0.45.
Calculate:
a. The minimum superficial velocity (VM) of the gas entering the fluidized column.
b. The bed height if V = 2 VM
c. The pressure drop under conditions where V =2.5 VM
Chapter 2 Solutions
Automotive Technology: A Systems Approach - With Manual and Access
Ch. 2 - Which of the following is not a recommended step...Ch. 2 - What type of information should go into your...Ch. 2 - Explain three types of pay systems used for...Ch. 2 - What should be included in the three main para...Ch. 2 - True or False? When you feel stress from your job...Ch. 2 - List the characteristics of a good resume.Ch. 2 - Which of the following behaviors does not show...Ch. 2 - If you decide that leaving your job is the best...Ch. 2 - True or False? When you are filling out an...Ch. 2 - Which of the following is not the right thing to...
Ch. 2 - Which of the following is not a characteristic of...Ch. 2 - Applicant A goes to a quiet place immediately...Ch. 2 - Prob. 13RQCh. 2 - Prob. 14RQCh. 2 - Which of the following would not be considered a...Ch. 2 - Describe the seven basic steps for logical...Ch. 2 - True or False? Critical thinking is the art of...Ch. 2 - True or False? The business you decide to work for...Ch. 2 - Define the terra diagnosis* as it applies to the...Ch. 2 - When identifying individuals to use as references...
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