A 3-year-old manufacturing equipment, which has a present market value of $13,000, is being considered for early replacement. The estimated five-year market values and annual operating costs are shown below. The AW replacement values of year 1 and 2 have already been conducted, help the company determine the total AW₁ replacement value (year 3 only) which will consider how long the asset should be retained, its ESL. The interest rate is 10% per year. Year j (1) 12345 5 MV, (2) $9000 8000 6000 2000 0 AOC, (3) $-2500 -2700 -3000 <-3500 4500

A large standby electricity generator in a hospital operating room has a first cost of $71,750 and may be used for a maximum of 6 years. Its salvage value, which decreases by 15% per year, is described by the equation S-71,750(1- 0.15), where n is the number of years after purchase. The operating cost of the generator will be constant at $9,250 per year, and the interest rate is 12% per year. Determine the economic service life and associated AW values. The economic service life is years and the AW value is $-

A steam generation system at a biomass-fueled power plant uses an electrostaticprecipitator (ESP) to clean its gaseous effluents. The power plant has consistently made use ofthe same type of ESP over the past several years. The installed cost of a new ESP has beenrelatively constant at $100,000. Records of operation and maintenance expenses indicate thefollowing average expenses per year as a function of the age of the ESP. The MVs of the ESP arealso reasonably well known as a function of age.  Data graph in image attached. Determine the best time to replace the ESP if the MARR is 15% per year.

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