Question (2)
a. one of the 12 principles of green engineering* is embedded entropy and complexity must be viewed as an investment when making design choices on recycle, reuse, or beneficial disposition. give a specific example of how this principle can be used to prevent pollution. (3 points)
b. one of the 12 principles of green engineering* is targeted durability, not immortality, should be a design goal. give a specific example of how this principle can be used to prevent pollution. (3 points)
c. define pollution prevention and explain two ways in which pollution prevention can reduce operating costs in a manufacturing operation. (3 points)
d. assume that you have been hired by a school board to conduct a life-cycle assessment (lca) on the use of paper towels versus electric hand driers for a school. (12 points)
i. what would be a good functional unit for the lca?
ii. list the stages/phases of the product life-cycle to be considered in a lca.
iii. for each stage/phase listed in (ii), decide which of the two alternatives (paper vs reader) would have the greatest environmental impact, and describe why.
iv. in what stage/phase of the lca would you expect to find the greatest environmental impact for each of the two alternatives?
e. define any four of the following terms: (4 points)
• design for disassembly
• industrial ecology resilience
• biomimicry
• source reduction
• intangibles