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An industrial coal-fired boiler for process steam is equipped with a 10-year-old electrostatic precipitator (ESP). Changes in coal quality have caused stack emissions to be
An industrial coal-fired boiler for process steam is equipped with a 10-year-old electrostatic precipitator (ESP). Changes in coal quality have caused stack emissions to be in noncompliance with federal standards for particulates. Two mutually exclusive alternatives have been proposed to rectify this problem (doing nothing is not an option). Capital investment Annual operating expenes New Baghouse New ESP $1,077,500 $1,003,500 67,800 108,500 The life of both alternatives is 11 years, the effective income tax rate is 37%, and the after-tax MARR is 7% per year Both alternatives qualify as seven ear MACRS (GDS) properties. Make a recommendation regarding which alternative to select based on an after-tax analysis. Click the icon to view the GDS Recovery Rates () fo the 7-year property class. Click the icon to view the interest and annuity table for discrete compounding when the MRR is 7% per year Calculate the PW value for the new baghouse. PWBaghouse (796), million (Round to three decimal places) Calculate the PW value for the new ESP. PWESP (7%)-SL million (Round to three decimal places.) Based on the PW values, select the
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