Agroindustrial project analysi

164 AGROINDUSTRIAL PROJECT ANALYSISDryer 1970volume 1970 f.o.b. 1970 f.o.b. cost of trays, installed(cubic feet) dryer cost trucks, controls cost100 4,000 750 for trays (250 square feet 8,175at $3 a square foot)300 for 1 truck/rack400 for controls400 4,800 3,000 for trays (1,000 square 14,200feet at $3 a square foot)900 for 3 trucks800 for controls800 9,600 6,000 for trays (2,000 square 27,300feet at $3 a square foot)1,800 for 6 trucks800 for controlsThe operating cost estimates (given in the first tabulation, above)are derived according to the following assumptions:* Two man-hours to load/unload fifty trays or one truck in each12-hour drying cycleITwo and three-quarters pounds of steam or its equivalent inenergy is required to evaporate I pound of water• Maintenance cost of 3-5 percent of installed cost yearly for a300-day year* One-third man-hour to supervise the machine during drying* Unskilled labor at an hourly wage of $4* Three shifts and 24-hour operation* No amortization has been taken into consideration.By these assumptions, daily 1977 operating costs can be disaggregatedin the following tabulation:Dryer volume Trays(cubic feet) (number) Labor Maintenance100 50 48 1.80400 200 96 3.13800 400 160 6.00