BOAT HANDRAIL HEATING SYSTEM

1
BOAT HANDRAIL HEATING SYSTEM

• Group 11
• Oscar Garcia
• Nik Hartney
• Pamela Mills
• Nicole Turner

2
Boat Hand Rails

• Used to provide a secure handhold
• Exposed to external weather conditions
• Susceptible to temperature changes
• May become uncomfortable to hold

3
Heating System

• Allows passengers to remain secure
• Provides comfort
• Helps prevent frostbite

4
Design

• Needs to run off of minimal energy
• Versatile enough to be applied to any boat with
  an inboard engine
• Must have a controllable temperature as to not
  overheat or remain too cool

5
Alternate Designs

• Electrical resistance heater
• Seawater coolant heat exchanger

Heat Exchanger
6
Final Design

• Raw seawater coolant flowing directly through
  handrail
• Harnesses waste thermal energy
• No need for complex electrical system

7
Design Specifics

• Dual opposing flows to regulate average
  temperature
• Thermally conductive fluid conduit
• Variable throttle for seawater coolant intake
• Open fluid system
• Piping system insulation

8
Computations and Testing

• System parameter assumptions

Trail 27?C Tatmosphere -20?C Drail 2
inches 0.051m Vwind 20 mi/h
8.94m/s Texhaust92 ?C

• External Forced convective heat transfer

9
Computations and Testing

• Handrail heat loss per meter

10
Computations and Testing

• Log mean temperature difference

11
Computations and Testing

• Mass flow rate and Velocity of seawater

12
Cost Analysis

• Piping material selection inexpensive,
  conductive
• Connections and Valves
• External thermometer

13
Conclusion

• Provide a temperature controlled railing system
• Minimal impact on boats systems
• Allow comfort and security for boat passengers