Automotive Technology: A Systems Approach (MindTap Course List)
6th Edition
ISBN: 9781305176423
Author: ERJAVEC
Publisher: Cengage
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Textbook Question
Chapter 9, Problem 13RQ
The stroke of an engine is the crank throw
- half
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2000 Kg/hr on an acetone water mixture containing 10% of acetone is to be extracted with
trichloroethane. The recovered solvent to be used is free of acetone. If 95% recovery of acetone is desired, the
equilibrium relationship is given by kg acetone/kg trichloroethane 1.65 kg acetone/kg water.
Estimate the number of stages required if 1.5 times the minimum solvent is used when: -
a-
Cross-current is to be extracted.
b- b- Counter-current is to be extracted.
2/1000kg/h of an acetone - water mixture containing 20wt% by weight of acetone is to be counter currently
extracted with trichloroethane. The recovered solvent to be used is free from acetone. The water and
trichloroethane are insoluble. If 90% recovery of acetone is desired estimate the number of stages required if 1.5
times the minimum solvent is used. The kg acetone/kg extract=1.65 kg water/kg raffinate.
a-
Repeat the calculation of A if the solvent used has purity of 98.5%.
b- If co-current extractor is used instead of counter-current extractor in A and B estimate the number of
stages required if equal amount of solvent used in each stage.
Water is pumped from a large reservoir to a point 75 feet higher
than the reservoir. How many feet of head must be added by the
pump if 7600 lbm/hr flows through a 6-inch pipe and the frictional
head loss is 3 feet? The density of the fluid is 60 lbm/ft³ and the
pump efficiency is 70%. Assume the kinetic energy correction
factor equals 1.
Chapter 9 Solutions
Automotive Technology: A Systems Approach (MindTap Course List)
Ch. 9 - Prob. 1RQCh. 9 - Describe what takes place during the four strokes...Ch. 9 - As an engines compression ratio increases, what...Ch. 9 - What test can be performed to check the efficiency...Ch. 9 - Describe tappet noise.Ch. 9 - Which of the following statements about engines is...Ch. 9 - Which stroke in the four-stroke cycle begins as...Ch. 9 - True or False? In an HCCI engine, combustion...Ch. 9 - Which of the following is not a true statement...Ch. 9 - True or False? SAE mandates that engine, when...
Ch. 9 - Technician A says head gasket thickness has an...Ch. 9 - Prob. 12RQCh. 9 - The stroke of an engine is the crank throw half...Ch. 9 - True or False? The camshaft is always located in...Ch. 9 - Which of the following is an expression of how...Ch. 9 - While diagnosing the cause for blue smoke from the...Ch. 9 - Prob. 2ASRQCh. 9 - While determining the cause for air leaking out of...Ch. 9 - While diagnosing the cause for an engine having...Ch. 9 - While looking at the results of an oil pressure...Ch. 9 - A vehicle is producing a sharp, metallic rapping...Ch. 9 - While conducting an engine vacuum test; Technician...Ch. 9 - While determining the most likely problem of an...Ch. 9 - When a customer states that black exhaust smoke is...Ch. 9 - Technician A says that if an engine had good...
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