Calculate present value please show the formulas used A) consider that replacements will be for identical units B) The residual value of the equipment corresponds to the cost of disposition of the unit C)Analyze a 30-year horizon D)Consider an interest rate of 6% The first alternative is to replace the 50 tons centrifuge (chiller), the handle system and its isolation system. The upfront costs are as follows: HI Unit Cost Life Centrifuge 50 tons $33,000 15 years Handlers $47,000 30 years Installation work $1,400 n/a Materials for initial installation ** $2,500 n/a Islation system $22,000 n/a *Reduces to 40% of original cost in case of equipment replacement. ** The cost of replacement materials is also assumed 40% of the original cost. Centrifugal maintenance consists of Maintenance work Staff requirements Cost Duration of work 1 day Cleaning every 6 months 1 technician 1 helper 1 technician 1 helper Monthly salary $1,550 $1,515 $1,550 $1,515 1/2 day Annual water pump maintenance Manufacturer's annual visit Fan replacement every three years $1,000 1 hour $150 1 technician 1 helper $1,550 $1,515 Maintenance is carried out by staff of the Refrigeration Workshop attachedto the Department of Buildings and Land of the land. The total hours a regular employee works at the Campus is 1,950 hours per year, at a rate of 7.5 hours per day. (You must calculate the cost associated withthe time staff spend on the maintenance tasks of these particular equipment.) The additional costs associated with the centrifuge operation are as follows Cost item Cold water pipe insulation replacement Frequency Every 6 years Cost $22,000 The costs associated with power consumption to the centrifuge system are as follows: The cost of daily electricity consumption of a 50-ton centrifuge is $150 per day. The cost of power consumption of the handler is $25 per day. The centrifuge system operates continuously. Calculate present value please show the formulas used A) consider that replacements will be for identical units B) The residual value of the equipment corresponds to the cost of disposition of the unit C)Analyze a 30-year horizon D)Consider an interest rate of 6% The first alternative is to replace the 50 tons centrifuge (chiller), the handle system and its isolation system. The upfront costs are as follows: HI Unit Cost Life Centrifuge 50 tons $33,000 15 years Handlers $47,000 30 years Installation work $1,400 n/a Materials for initial installation ** $2,500 n/a Islation system $22,000 n/a *Reduces to 40% of original cost in case of equipment replacement. ** The cost of replacement materials is also assumed 40% of the original cost. Centrifugal maintenance consists of Maintenance work Staff requirements Cost Duration of work 1 day Cleaning every 6 months 1 technician 1 helper 1 technician 1 helper Monthly salary $1,550 $1,515 $1,550 $1,515 1/2 day Annual water pump maintenance Manufacturer's annual visit Fan replacement every three years $1,000 1 hour $150 1 technician 1 helper $1,550 $1,515 Maintenance is carried out by staff of the Refrigeration Workshop attachedto the Department of Buildings and Land of the land. The total hours a regular employee works at the Campus is 1,950 hours per year, at a rate of 7.5 hours per day. (You must calculate the cost associated withthe time staff spend on the maintenance tasks of these particular equipment.) The additional costs associated with the centrifuge operation are as follows Cost item Cold water pipe insulation replacement Frequency Every 6 years Cost $22,000 The costs associated with power consumption to the centrifuge system are as follows: The cost of daily electricity consumption of a 50-ton centrifuge is $150 per day. The cost of power consumption of the handler is $25 per day. The centrifuge system operates continuously