type plz A particular chemical process deposits scale on the inside of pipes. The scale cannot be removed, but increasing thepumping pressure can maintain the flow through the narrower diameter. The pipe costs $20 per foot to install, and it hasno salvage value when it is removed. The pumping costs are $8 per foot of pipe initially, and they increase annually by $5 per year starting in year 2. What is the economic life of the pipe if the interest rate is 12% ?

The objective of the question is to determine the economic life of the pipe. This involves…

Answered: A particular chemical process deposits…

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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I leave a like on all sections for your assistance, thank you.WATER TREATMENT PLANT PROCESS COSTSInformation: (Please see the attached image depicting the schematics + Text) The results obtained from the four operating modes showed that the hardness decreased by 4.7% when both processes were in operation (i.e., sludge recirculation and aeration). When only sludge was recirculated, the reduction was 3.8%. There was no reduction due to aeration only, or when there was neither aeration nor recirculation. For turbidity, the reduction was 28% when both recirculation and aeration were used. The reduction was 18% when neither aeration nor recirculation was used. The reduction was also 18% when aeration alone was used, which means that aeration alone was of no benefit for turbidity reduction. With sludge recirculation alone, the turbidity reduction was only 6%, meaning that sludge recirculation alone actually resulted in an increase in turbidity-the difference between 18% and 6%. Since…
only typed answer Consider the following information: Q = 16 L + 42 K PL=26, PK=10, P=41 and C=5020 What is the profit maximizing amount of capital?
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Economic Dispatch Question It is required to investigate the economic dispatch of three power plants located in the western part of Victoria. The total load (PD) to be supplied by those power plants is 1500 MW. Assume the cost functions and the generation limits for these power plants are as follows. 350+ 4.2 P₁ + 0.006 P² 600 + 3.1 P₂ + 0.004 P² 500+ 4.2 P3 +0.007 P3 a) b) c) Plant 1: C₁ Plant 2: C₂ Plant 3: C3 = = = 150 ≤ P₁ ≤ 550 350 ≤ P₂ ≤ 700 120 ≤P3 ≤ 400 If the total load is shared among the three power plants equally, what is power generation of each power plant and what is the total operating cost in $/hr in this case. Find the optimal (economic) dispatch of each plant, the incremental operating cost 1, and the total operation cost in $/hr. (You don't need to use the iteration method). If it is expected that those power plant will operate in average 18 hrs a day, how much saving in cost if the economic dispatch operation with shared power operation (in part a).
A time-study technician at the Southern Textile Companyhas conducted a time study of a spinning machine operatorthat spins rough cotton yarn into a finer yarn on bobbins foruse in a weaving operation. The time study was requestedas the result of a union grievance. The average cycle time for the operator to replace all the full bobbins on the ma-chine with empty bobbins was 3.62 minutes. The technician assigned an overall performance rating for the job of 100%,and the allowance factor specified by the union contract is15%. Compute the standard time for this job.
D.1.
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