1. Hot Water and Steam 3bWater SystemChapter 8; Appendix B (Wentz) and 8.1- 8.3 (Toa) 4.11 Analysis and Design of Construction Systems - Mechanical (6 hrs) Plumbing Systems CNST 305 Environmental Systems 1 Dr. Berryman

2. Hot Water Considerations Hot Water Burns People Hot water is corrosive

3. Hot Water Considerations Bacteria can breed (i.e. Legionella) Recirculation Recovery vs Storage

4. Hot Water Heaters Classified by fuel sources

5. Steam Phase change from water Liquid to gas Safety devices

6. Domestic Hot Water Heaters

7. Commercial Heaters Semi-Instantaneous Instantaneous Heat exchanger

8. Design Considerations for Hot/Cold Systems Noise Water Hammer (shock wave) Dampening/prevention devices Steam system start up

9. Design Considerations for Hot/Cold Systems Pressure loss Factors that affect pressure loss

10. Class Exercise A multi-story building has access to a water main. Ignoring friction, how many floors will this system effectively serve? Given: 50 psi main 12’ per floor Ignore affects of pipe and fitting friction Fixture requirements – 25 psi for Flush Tank

11. Next Time Sizing Water Systems 3cWater SystemChapter 8; Appendix B (Wentz) and 8.1- 8.3 (Toa) 4.11 Analysis and Design of Construction Systems - Mechanical (6 hrs)