Reference no: EM132182963
1) Identify a suitable functional unit based on service provision.
2) Calculate estimates of energy consumption when you dry your hands in each of the three ways shown above. Consider only those processes for which information is given on the next page. Aggregate and express energy use as primary energy.
3) Are there any factors that should be explored using sensitivity analysis? List what you consider the important factors for sensitivity analysis and give a brief explanation of why they are important. Then choose the two most important factors and conduct a sensitivity analysis on them (ie,vary the values for those two factors by reasonable amounts and examine the changes). Explain what you learn from the sensitivity analysis.
Data:
Disposable paper towels:
Made from 100% by mass of post-consumer recycled paper fibre (pulp)
Energy consumption of recycling plant: 0.28 tonnes of oil + 400 kWh of electricity per tonne of recycled paper towels
Transport distance from the paper towel production plant to point-of-use: 200km
Diesel consumption of truck: 45 litres per 100 km
Capacity: 30 tonnes of paper on the outward journey, empty on the return journey
Weight of one dry paper towel: 20 g.