Technological Systems Models: Part 3 Copyright © Texas Education Agency, All rights reserved 1. Principles of Manufacturing

Bell Work Activity Directions: Please take out a sheet of paper and answer the following questions. A.In your opinion which method of travel is safer, automobiles or airplanes? Why do you think so? B.When was the last time you experienced an electrical power outage? List 5 of the things you did to take the place of electricity. C. If you were planning a camping trip (not in a recreational vehicle), list 10 essential items you would want to take. 2 Copyright © Texas Education Agency, All rights reserved

A. There are several important terms and definitions students need to know. B. Students will now complete the Matching Definitions handout on Technological Systems. Students may work in groups. Warm-Up Activity Engineering and Technology Terms 3 Copyright © Texas Education Agency, All rights reserved

Manufacturing and Technological Systems Models  Systems are designed to complete tasks and produce outputs. Open and closed loop systems are the most common basic models. A.Open Loop System 4 InputProcessOutput Copyright © Texas Education Agency, All rights reserved

Manufacturing and Technological Systems Models (continued) B. Closed Loop System 5 Input ProcessOutput Feedback Copyright © Texas Education Agency, All rights reserved

Understanding manufacturing system processes A.Lean Manufacturing Is defined as waste elimination in the production process while creating value*. B. Supply Chain (Logistics) Systems Systems designed to control the flow of production materials to the right place at the right time. 6 Copyright © Texas Education Agency, All rights reserved

Understanding manufacturing system differences A.Lean Manufacturing versus traditional inventory systems Prior to Lean systems, previous high inventory systems were costly, inefficient and prevented company growth. B. Supply Chain Systems versus traditional supply systems Traditional supply systems were highly inefficient: difficulty in tracking and accounting for high levels of inventory; poor communication systems caused difficulty in understanding demands; no global coordination. 7 Copyright © Texas Education Agency, All rights reserved

The Goal of Technological Systems A. Aircraft Systems- have evolved and been re- designed over the years to be safer and more reliable. Hydraulics Electrical Fuel Oxygen Propulsion Navigation Ice protection Flight controls. 8 Copyright © Texas Education Agency, All rights reserved

The Goal of Technological Systems A.A nuclear power plant system creates the necessary steam energy used to drive electrical generators through the nuclear fission process (the splitting of an atom). The fission process The plant system model. 9 Copyright © Texas Education Agency, All rights reserved

The Nuclear Plant System Model 10 Cooling Tower Containment structure A.A. A- Nuclear Reactor B- Steam Generator C-Turbine D- Generator E- Transformer F- Water Supply B C. D E F. Power output Copyright © Texas Education Agency, All rights reserved

Nuclear Power 11 Copyright © Texas Education Agency, All rights reserved