Contemporary Engineering Economics (6th Edition)
Contemporary Engineering Economics (6th Edition)
6th Edition
ISBN: 9780134105598
Author: Chan S. Park
Publisher: PEARSON
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Chapter 6, Problem 51P
To determine

Calculate the cost per pound.

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Delaware Chemicals is considering the installation of a computer process con- trol system in one of its processing plants. This plant is used about 40% of the time, or 3,500 operating hours per year, to produce a proprietary demulsifica- tion chemical; during the remaining 60% of the time, it is used to produce other specialty chemicals. The annual production of the demulsification chemical amounts to 30,000 kilograms per year, and it sells for $15 per kilogram. The proposed computer process control system will cost $65,000 and is expected to provide specific benefits in the production of the demulsification chemical as follows: First, the selling price of the product could be increased by $2 per kilogram because the product would be of higher purity, which translates into better demulsification performance. Second, production volumes would increase by 4,000 kilograms per year as a result of higher reaction yields, without any increase in requirements for raw material quantities or…
Deep Mines Ltd. of Saskatchewan is contemplating the purchase of equipment to exploit a mineral deposit located on land to which the company has mineral rights. An engineering and cost analysis has been made, and it is expected that the following cash flows would be associated with opening and operating a mine in the area: Cost of new equipment and timbers Working capital required Net annual cash receipts Cost to construct new roads in three years Salvage value of equipment in four years "Receipts from sales of ore, less out-of-pocket costs for salaries, utilities, insurance and so forth. It is estimated that the mineral deposit would be exhausted after four years of mining. At that point, the working capital would be released for reinvestment elsewhere. The company's discount rate is 20%. Click here to view Exhibit 10-1 and Exhibit 10-2, to determine the appropriate discount factor(s) using tables. $256,000 89,000 118,000* 44,000 50,000 Required: 1-a. Determine the NPV of the proposed…
1. Two alternative designs are under consideration for a tapered fastening pin. The fastening pins are sold for $0.70 each. Either design will serve equally well and will involve the same material and manufacturing cost except for the lathe and drill operations. Design A will require 12 hours of lathe time and 5 hours of drill time per 1,000 units. Design B will require 7 hours of lathe time and 8 hours of drill time per 1,000 units. The variable operating cost of the lathe, including labor, is $18.60 per hour. The variable operating cost of the drill, including labor, is $16.90 per hour. Finally, there is a sunk cost of $5,000 for Design A and $9,000 for Design B due to obsolete tooling. a. Which design should be adopted if 125,000 units are sold each year? b. What is the annual saving over the other design? 2. A company is analyzing a make-versus-purchase situation for a component used in several products, and the engineering department has developed these data: Option A:…
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