# Design and Development of a Thermoelectric Beverage Cooler - PowerPoint PPT Presentation

1 / 21

Design and Development of a Thermoelectric Beverage Cooler. By: Brandon Carpenter Andrew Johnston Tim Taylor Faculty Advisor: Dr. Quamrul Mazumder University of Michigan - Flint. Objective. Refrigerator designed for cooling large multiple items

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.

Design and Development of a Thermoelectric Beverage Cooler

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

## Design and Development of a Thermoelectric Beverage Cooler

By:

Brandon Carpenter

Andrew Johnston

Tim Taylor

Dr. QuamrulMazumder

University of Michigan - Flint

### Objective

• Refrigerator designed for cooling large

multiple items

• Inefficient if only a single item is to

be cooled

• Due to size is non-portable

• Technology requires coolant, compressor,

and cumbersome tubing

### Objective

• Apply concept of refrigerator to a small

scale device

• Solid-state, eliminate need for coolants

• Portability; can be taken wherever needed

• Concentrate cooling onto single object to

be cooled, eliminate energy waste in

cooling empty space

Turn This

Into This

### Engineering Approach

• Use Peltier thermo cooler to provide

cooling

• Use tight fitting aluminum sleeve to

enhance conductivity

• Machine base to match contour of

can bottom

• Use fans with heat sink to remove heat

• Power with drill battery

### Preliminary Calculations

• Initial goal: to cool a can from 700F to 350F in approximately 5 minutes.

• Required Cooling Rate:

q= ρ V c

q= (1000kg/m3)( 3.54(10-4)m3)( 4.189kJ/kg∙K)( .0533 K/second)

This gives a value for q of .079 kW, or 79 Watts.

### Further Calculations

• Base: ΔT = 16K kAl = .58W/m•K A= .00383m2 dx= .0051m

• q = kA q= (.58)(.00383)(3137) q = 6.99W

• Sleeve: ΔT = 16K kAl = .58W/m•K

L = .108m r1= .0327m r2= .0349m

• q = 2πLk q= 2π(.108)(.58) = 95.4W [3]

• Total Cooling = 95.4W + 6.99W = 102.4W

### Main Components

• Peltier Cooler

Model TEC1-12709

Rated for 90W/ 139W Max

### Notes on Cooler

• While a cooler with a higher rated wattage

would theoretically be able to remove

more heat, it creates more heat due to

resistance and requires a much larger

heat sink.

• In order to remain portable a smaller

cooler was needed, affecting cooling time.

### Main Components

• Sleeve

6061 Aluminum

Cut to appropriate length

2.62” Inner Diameter

0.065” Wall

Thickness

### Main Components

• Machined Base

6061 Aluminum

Designed to accommodate various cans,

as dimensions can differ

### Manufacturing / Assembly

• Aluminum tubing was cut into appropriate

• lengths to make sections

• Beverage Compartment

• Fan Housing (which was not used)

• Wiring Compartment

• Battery Compartment

### Manufacturing / Assembly

to serve as plates

between sections

and for mounting

purposes

### Manufacturing / Assembly

• Components were assembled using

machine screws and

### Manufacturing / Assembly

• Insulation was placed around beverage compartment

• Thermal paste was

applied between

thermo cooler,

heat sink, top disc,

base, and sleeve

### Testing Procedure

• A 12 oz. pop can is filled with water and placed in the beverage compartment

• Initial temperature of the water is recorded

• Cooler is turned on, and temperature is recorded in two minute intervals

• Additionally, the ambient air temperature, starting battery voltage, and final battery voltage are recorded to check for any correlation

### Testing Procedure

• For each test, the data is entered into

For comparison purposes, a similar test was conducted using a refrigerator

### Results

Data in graph form

### Discussion

• Refrigerator – constant 0.317⁰F / min

• Cooler - maximum 0.65⁰F / min

- average 0.317⁰F / min

• In terms of the cooler outperformed the refrigerator

• Could only maintain this cooling level for

short period due to battery

### Conclusion

• With available technology idea is not

yet practical

• Current Peltier coolers are not very

efficient, require large heat sinks which

hinder portability

• Also battery power/size ratio insufficient

for portability