P09451 Thermo-Electric P09451 Thermo-Electric Module for Large Scale Module for Large Scale

SystemsSystemsBryan McCormick- ME (Team Lead)Bryan McCormick- ME (Team Lead)

Andy Freedman- MEAndy Freedman- MEJohn Kreuder- MEJohn Kreuder- MEKen McLoud - MEKen McLoud - ME

Jon Holdsworth- EEJon Holdsworth- EEGabriela Santa Cruz- ISEGabriela Santa Cruz- ISE

BOMBOMDescription Approximate Unit Price Quantity Cost Supplier

Melcor TE modules $25.00 32 $800.00 Melcor

Taihauxing TE modules $15.00 32 $480.00 Taihauxing

Power MOSFET $15.00 8 $120.00  

2" Schedule 40 PVC(linear ft) $1.24 15 $18.65 McMaster-Carr

2" 90 Elbows $2.45 12 $29.40 McMaster-Carr

2" Tees $2.39 4 $9.56 McMaster-Carr

2" Ball Valves $20.00 3 $60.00 Lowes

Heatsink (linear ft) $23.33 36 $840.00 M&M Metals

Cold plates $500.00 2 $1,000.00 Solid State Cooling

K type Thermocouples $5.00 73 $365.00  

Thermal gel pads (sheet) $15.52 1 $15.52 3M

Plate Aluminum     $0.00  

Angle Aluminum $3.25   $0.00 McMaster-Carr

Flexiforce sensors (sheet, 8 per sheet) $110.00 1 $110.00  

Thermocouple receptors     $0.00  

Thermocouple extension wire $138.00 1 $138.00 Omega

DAQ expansion (32 channels) $480.00 1 $480.00  

Machining     $0.00  

Welding     $0.00 Mahany

Subtotal: $4,466.13

Electrical SchematicsElectrical Schematics

Figure 1. Previous Electrical Schematic

VariableLoad RRR 2

3RRShunt

Shunt

Shunt

RV

I

Electrical SchematicsElectrical Schematics

Figure 2. Simplified Current Electrical Schematic

VariableShuntLoad RRRR '2

Shunt

Shunt

RV

I

Piping LayoutPiping Layout

Head Loss CalculationsHead Loss Calculationshlt= 55.93*V[ft/s]^2/2

hltold= 42.5*V^2/2 < - tweaked manually to meet performance curve where mass flow rate = 0.55 kg/s

mass flow kg/s Flow cfm Velocity ft/s V2 (ft2/s2) delta P old cfg delta P in. w. g.

0.0375 65.05063291 49.69502294 2469.595305 23.91826799 31.47644067

0.04 69.38734177 53.00802447 2809.850658 27.2136738 35.81319472

0.0425 73.72405063 56.321026 3172.05797 30.72168644 40.42973936

0.045 78.06075949 59.63402753 3556.217239 34.44230591 45.32607457

0.0475 82.39746835 62.94702906 3962.328467 38.3755322 50.50220037

0.05 86.73417722 66.26003059 4390.391653 42.52136532 55.95811675 <- closest point to the performance curve.

0.0525 91.07088608 69.57303212 4840.406798 46.87980526 61.69382372Mass flow will be 0.05 kg/s

0.055 95.40759494 72.88603364 5312.3739 51.45085203 67.70932127

0.0575 99.7443038 76.19903517 5806.292961 56.23450563 74.00460941

0.06 104.0810127 79.5120367 6322.163981 61.23076605 80.57968813

0.0625 108.4177215 82.82503823 6859.986958 66.4396333 87.43455743

0.065 112.7544304 86.13803976 7419.761894 71.86110738 94.56921732

0.0675 117.0911392 89.45104129 8001.488788 77.49518829 101.9836678

0.07 121.4278481 92.76404282 8605.16764 83.34187602 109.6779088

ConcernsConcerns

• ~97 potential measurements from each test• Measuring temperature between zones• Lead time on machining/welding• # of TE modules currently working to

perform preliminary testing• Changing # of zones between tests• Tmax of PVC piping