Learning Objectives • Develop estimation skills
Estimations • Usually, engineers strive for a high accuracy • Sometimes, rough estimates are sufficient. • These estimates may be in error by 20% or more.
Estimations The accuracy of these estimates depends on: 1. Consequences of error, 2. Available reference materials, 3. Time allotted for estimate, 4. Experience with similar problems.
Estimation Exercise 1 • Individually spend 2 minutes on the following: • Determine the annual revenue generated from the fines paid by students that illegally park on the Texas A & M campus. • Spend 3 minutes discussing the solution as a team
Estimation Exercise 2 (6 min) Dr. Holtzapple has developed a process for converting chicken feathers into chicken feed. Chicken feathers can be obtained for $20/ton. Processing costs $80/ton. The feed can be be sold for $200/ton. As a team, estimate the amount of annual profit if all the feathers in the U.S. were converted to chicken feed.
Estimation Exercise 3 • In your team, Front pair: • Determine the maximum number of ping pong balls (not crushed) that could be stored in this classroom. • In your team, Back Pair: • Determine the volume of paint (gallons or liters) to apply one coat to all the painted walls in this classroom.