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College of Engineering 4. To produce one cup of coffee ( 1 cup is 1 dL or 0.1 liters). 10 grams of roasted ground coffee are required. Before the coffee can be used in a machine, the coffee beans must first be cultivated and treated as well as processed. Finally, the processed grounds are added to hot water. A coffee machine requires 0.12kh/L water when brewing and 0.06Wh/ hoursandty. Assume two hours of standby per cup of coffee. The functional unit to be analyzed is 1 cup of coffee, brewed (a) With the information provided from Ecoinvent on the following page, determine the energy requirement and CO2 emissions resulting from a cup of roasted coffee. Include only the processes described in the problem statement; packaging, transportation, disposal, etc. are not required. Tip: use the Excel template. (10%) (b) What is the dominant stage for energy and CO2 ? the extractim of nasted (2.5\%) (c) Calculate the ratio of grams fossil CO2 emitted per MJ non-renewable primary energy for the total. Provide a comment on whether this result makes sense for a bio-based product. (d) Draw a process flow diagram which produces the FU of 1 cup of coffee, brewed. Include reference flows