Next Generation Charcoal Stove for Haiti Team P

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Next Generation Charcoal Stove for Haiti Team P 12442 Marissa Blockus, Brandon Harbridge, Sam

Next Generation Charcoal Stove for Haiti Team P 12442 Marissa Blockus, Brandon Harbridge, Sam Huynh, Brianna Stephenson-Vallot, Dustin Tyler

Team Members • Brandon Harbridge (IE) – Team Lead, Test Technician Stove Team •

Team Members • Brandon Harbridge (IE) – Team Lead, Test Technician Stove Team • Samantha Huynh (ME) – Lead Engineer • Brianna Stephenson-Vallot (ME) – Team Engineer, Purchaser Thermoelectric Team • Marissa Blockus (ME) – Team Facilitator • Dustin Tyler (ME) – Team Engineer, EE Liaison

Purpose of Review • Demonstrate the group’s progress in accepting the tasks involved in

Purpose of Review • Demonstrate the group’s progress in accepting the tasks involved in creating two functioning Haitian cook stoves • To gain feedback on the group’s current path to verify that the team has a complete understanding of the project • Finalize customer Needs/Specs • To obtain constructive criticism in order to improve as young engineers

Customer Needs-Stove

Customer Needs-Stove

Engineering Specs-Stove

Engineering Specs-Stove

Customer Needs-TEG

Customer Needs-TEG

Engineering Specs-TEG

Engineering Specs-TEG

System Energy Flow-Stove

System Energy Flow-Stove

System Map

System Map

Start-Up Flow Diagram

Start-Up Flow Diagram

TEG Diagram 1

TEG Diagram 1

TEG Diagram 2

TEG Diagram 2

TEG Heat Transfer Analysis Measured Constants α Re Rth K 0. 035 V/K 2.

TEG Heat Transfer Analysis Measured Constants α Re Rth K 0. 035 V/K 2. 745 ohms 1. 376 K/W 0. 7267 W/K Governing Equations qh = α*Th*I + K*(Th-Tc) - 1/2*Re*I^2 qc = α*Tc*I + K*(Th-Tc) + 1/2*Re*I^2 Imax = α*(Th-Tc)/(2*Re) W = qh-qc What this shows… The heat conduction required from the fire to achieve the hot side temperature as well as the cooling required to maintain the cold side temperature. Though this is a crude representation, it represents a basis for further study. Delta T 200 degrees C Tc (C) 100 110 120 130 140 150 160 170 180 Th (C) 300 310 320 330 340 350 360 370 380 Imax 1. 26 qh (W) 156. 25 156. 69 157. 12 157. 56 158. 00 158. 43 158. 87 159. 30 159. 74 qc (W) 151. 89 152. 33 152. 76 153. 20 153. 64 154. 07 154. 51 154. 94 155. 38 W (W) 4. 36 4. 36 At a temperature difference other than 200 C Delta T 125 degrees C Tc (C) 100 110 Th (C) 225 235 Imax 0. 788 qh (W) 96. 12 96. 40 qc (W) 94. 42 94. 69 W (W) 1. 70 120 245 130 255 140 265 150 275 160 285 170 295 180 305 96. 67 94. 97 1. 70 96. 94 95. 24 1. 70 97. 21 95. 51 1. 70 97. 49 95. 78 1. 70 97. 76 96. 06 1. 70 98. 03 96. 33 1. 70 98. 30 96. 60 1. 70 Delta T 150 degrees C Tc (C) 100 110 120 130 140 150 160 170 180 Th (C) 250 260 270 280 290 300 310 320 330 Imax 0. 945 qh (W) 115. 96 116. 29 116. 62 116. 94 117. 27 117. 60 117. 92 118. 25 118. 58 qc (W) 113. 51 113. 84 114. 16 114. 49 114. 82 115. 14 115. 47 115. 80 116. 13 W (W) 2. 45 2. 45 Delta T 175 degrees C Tc (C) 100 110 120 130 140 150 160 170 180 Th (C) 275 285 295 305 315 325 335 345 355 Imax 1. 103 qh (W) 136. 00 136. 39 136. 77 137. 15 137. 53 137. 91 138. 29 138. 68 139. 06 qc (W) 132. 67 133. 05 133. 43 133. 81 134. 19 134. 57 134. 96 135. 34 135. 72 W (W) 3. 34 3. 34

Power Produced Vs. Delta Temp 5. 0 4. 5 4. 0 Power Produced (W)

Power Produced Vs. Delta Temp 5. 0 4. 5 4. 0 Power Produced (W) 3. 5 3. 0 2. 5 2. 0 1. 5 1. 0 0. 5 0. 0 0 50 100 Delta T (C) 150 200 250

Morphological Chart

Morphological Chart

Associated Risks System, Materials and Manufacturing, TEG, Fan and Conducting Rod Risks

Associated Risks System, Materials and Manufacturing, TEG, Fan and Conducting Rod Risks

1 -low likelihood/severity, 2 -moderate likelihood/severity, 3 -high likelihood/severity

1 -low likelihood/severity, 2 -moderate likelihood/severity, 3 -high likelihood/severity

1 -low likelihood/severity, 2 -moderate likelihood/severity, 3 -high likelihood/severity

1 -low likelihood/severity, 2 -moderate likelihood/severity, 3 -high likelihood/severity

1 -low likelihood/severity, 2 -moderate likelihood/severity, 3 -high likelihood/severity

1 -low likelihood/severity, 2 -moderate likelihood/severity, 3 -high likelihood/severity

1 -low likelihood/severity, 2 -moderate likelihood/severity, 3 -high likelihood/severity

1 -low likelihood/severity, 2 -moderate likelihood/severity, 3 -high likelihood/severity

1 -low likelihood/severity, 2 -moderate likelihood/severity, 3 -high likelihood/severity

1 -low likelihood/severity, 2 -moderate likelihood/severity, 3 -high likelihood/severity

Pugh Charts Stove Team

Pugh Charts Stove Team

Pugh Charts TE Team

Pugh Charts TE Team

Project Plan

Project Plan

Work Breakdown Structure

Work Breakdown Structure

Future Plans • Detailed heat transfer analysis of proposed heat harvesting system to determine

Future Plans • Detailed heat transfer analysis of proposed heat harvesting system to determine appropriate heat sink and conduction rod sizing. • Calculate all percentage heat losses within the stove system to better optimize future designs. • Analyzing the need for a change in combustion chamber geometry. • Test existing RIT stove to compare empirical data with theoretical models and determine overall efficiency of the system.

Questions?

Questions?