1. GROUP 3 !!! Human Cooling System Group Members: Brian Hammond
Darren Fancher
Chris Batsch
Charles Coleman
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2. Overview Design Proposal Objective Applications
Material Selection & Specifications
Similar Products
Actual System Design
Calculations
Graphs
Conclusion
Questions
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3. What is Our Project Design?
System with two temperature reservoirs
Heat transfer between the two by cool running water
Pump providing the work
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4. System Design Objectives
Minimum running time of 1 hour
Effective heat transfer from body to water
Low Cost
Have the overall system efficient
Adaptable/ Versatile
Feasible
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5. System Applications Heavy Farm equipment Racecar drivers
Sports therapy
Sore Muscles
Injuries
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6. Material Selection Cooler Tubing Pump Fluid (moving and non)
Cooling device
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7. Temperature Gradient (F)
Tubing Selection
Material
Thermal Conductivity
Temperature Gradient (F)
Cost
Clear PVC
1- 3
$0.17 per ft.
Copper
401
up to 500
$0.50 per ft.
Polyurethane
.3-4
-68 to 140
$1.37 per ft.
Polyethylene
.1-.3
-68 to 11
$0.14 per ft.
*Nylon tubing
.2-.4
-60 to 200
$0.65 per ft.
* why nylon tubing
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8. Material Specifications
Cooler
Size
Weight
Tubing
Diameter(inner/outer)
Durable and Strong
Pump size
Fluid
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9. Material Mechanical Properties
Material Mechanical Properties
Material
Thermal Conductivity
Dimensions (in)
Cost
Cooler
N/A
9x7x8
$9.95
Copper tubing
401
Do- 1/2
Di- 3/8
$0.50 per ft.
Pump
3 gal per hr.
$14-$20
Insulation
.1-.8
Do- 1
Di- 1/2
$2.02 per ft.
Nylon tubing
.2-.4
$0.65 per ft.
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10. Competitors’ Products
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11. System Design
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12. Calculation Formulas Mass Flow Rate Conduction Heat Transfer
Convention Heat Transfer
Energy Equation
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13. Calculation Formulas(cont.)
Calculation Formulas(cont.)
Heat Transfer
Conductive Resistance
Convention Resistance
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14. Graphs….
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15. Graphs(cont.)
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16. Calculated Values Mass flow 0.00899 kg/s Q Total 20.33 W Q Pad 18.75 W
Calculated Values
Mass flow
kg/s
Q Total
20.33 W
Q Pad
18.75 W
Q Lines
1.54 W
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17. Conclusion Design has Good Heat Transfer Low Cost Efficient
Very Adaptable/ Versatile
Highly Feasible
Uses low amounts of power
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