
Mindtap For Erjavec/thompson's Automotive Technology: A Systems Approach, 4 Terms Printed Access Card (mindtap Course List)
7th Edition
ISBN: 9781337794381
Author: Jack Erjavec, Rob Thompson
Publisher: Cengage Learning
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Chapter 42, Problem 3SA
What happens if the TCM determines that the signals from the TFT sensor are incorrect?
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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 42 Solutions
Mindtap For Erjavec/thompson's Automotive Technology: A Systems Approach, 4 Terms Printed Access Card (mindtap Course List)
Ch. 42 - While discussing the CVT transaxie used in Toyota...Ch. 42 - Although computers receive different information...Ch. 42 - What happens if the TCM determines that the...Ch. 42 - Prob. 4SACh. 42 - List five things that could cause incorrect shift...Ch. 42 - Most late-model transmission control systems have...Ch. 42 - What inputs are of prime importance to a computer...Ch. 42 - What are the advantages of using electronic...Ch. 42 - Voltage generation devices are typically used to...Ch. 42 - True or False? On most late-model EAT systems,...
Ch. 42 - True or False? The neutral safety switch and...Ch. 42 - Which of the following is not a voltage-generating...Ch. 42 - A glitch appears in the waveform of a vehicle...Ch. 42 - Prob. 3MCCh. 42 - Which of the following would probably not be...Ch. 42 - Technician A says that some systems use a special...Ch. 42 - Technician A says that shift solenoids direct...Ch. 42 - Technician A says that throttle position is an...Ch. 42 - Technician A says that a faulty TP sensor can...Ch. 42 - Technician A says that some shift solenoids can be...Ch. 42 - An electronically controlled transmission has...Ch. 42 - While discussing transmission adaptive learning:...Ch. 42 - While discussing valve body assemblies in...Ch. 42 - A transmission has delayed upshifts under all...Ch. 42 - While diagnosing the cause of TCC shudder:...
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