The cellulosic ethanol plant in Problem 7 thinks it might be a better idea to only accept large rectangular bales (1.4 m × 1.4 m × 2.75 m) for delivery. These large rectangular bales have an average bulk density of 182 kg/m3. a. How many square bales are needed to supply the plant’s daily biomass consumption if the average daily consumption remains at 1500 tons/day? b. The biorefinery wishes to maintain a 15 day stockpile of large square bales. Based on this storage capacity, determine the sheltered area required to store the 15 day volume of bales. Assume the storage structure such that it provides 9 m of clearance height. c. A building contractor has quoted a price of $70/m3 to build the required storage structure. Calculate the total investment required to operate the facility on a $/ton basis and then determine the annual cost per ton if the annual cost is estimated to be 13.5% of the total costs
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