PW of Delta T = -13000 + 4750(P/A, 18%, 8)
= -13000 + 4750 * (1.18^8 - 1)/(0.18*1.18^8)
= $6,368.44
PW of Alpha B = -15000 + 6250(P/A, 18%, 8)
= -15000 + 6250 * (1.18^8 - 1)/(0.18*1.18^8)
= $10,484.79
Since PW of Alpha B is more, select Alpha B
3. Two advanced thermal insulating and anti-condensation protection alternatives have been proposed for new Antarctica marine...
3. Two advanced thermal insulating and anti-condensation protection alternatives have been proposed for new Antarctica marine vessels subject to the harsh marine environment. One alternative must be selected. Estimated savings from reduced total installation and maintenance costs over conventional insulation are the following: Alternative Installed cost Annual savings Life, years Delta-T Alpha-B $15,000 $6250 $13,000 $4750 8 8 Which alternative should be recommended based on the present worth method? Use a MARR of 18% and a study period of 8...
Problem 6-39 (algorithmic) Question Help Two insulation thickness alternatives have been proposed for a process stoam line subject to severe weather conditions. One alternative must be selected. Estimated savings in heat loss and installation cost are given below. Which thickness would you recommend or a ARRs 18% per year and ne ig ble market sa age values? The study per d is 4 years use the ted market value t cho que t esin at the m et alue ese...