Question

An electronics company wants to fit a solvent recovery system on the vent gas from its circuit board manufacturing line. The solvent recovery system consists of a chiller, a knockout drum, and an adsorbent bed. The adsorbent is periodically regenerated by circulating hot air over the bed and to the chiller and knockout. After consultation with equipment vendors, the following purchased prices are estimated for the major plant equipment: Item Cost ($) Chiller 4,000 Knockout drum 1,000 Packaged refrigeration plant 3,000 Adsorbent vessel (X2) 1,500 cach Air blower Air blower Air blower Air heater 3,000 a. Draw a PID diagram for the proposed process (6 marks) b. Estimate cost of the plant and the total project cost. If the annual operating costs are $38,000 and the annual savings in recovered solvent are $61,500, what is the internal rate of return of this project?

          An electronics company wants to fit a solvent recovery system on the vent gas from its circuit board manufacturing line. The solvent recovery system consists of a chiller, a knockout drum, and an adsorbent bed. The adsorbent is periodically regenerated by circulating hot air over the bed and to the chiller and knockout. After consultation with equipment vendors, the following purchased prices are estimated for the major plant equipment:
Item
Cost ($)
Chiller
4,000
Knockout drum
1,000
Packaged refrigeration plant
3,000
Adsorbent vessel (X2)
1,500 cach
Air blower
Air blower
Air blower Air heater
3,000
a. Draw a PID diagram for the proposed process
(6 marks)
b. Estimate cost of the plant and the total project cost. If the annual operating costs are $38,000 and the annual savings in recovered solvent are $61,500, what is the internal rate of return of this project?

Added by Aaron M.

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