1. Next Generation Charcoal Stove for Haiti
Team P12442
Marissa Blockus, Brandon Harbridge, Sam Huynh, Brianna Stephenson-Vallot, Dustin Tyler

2. 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

3. 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

4. Customer Needs-Stove

5. Engineering Specs-Stove

6. Customer Needs-TEG

7. Engineering Specs-TEG

8. System Energy Flow-Stove

9. System Map

10. Start-Up Flow Diagram

11. TEG Diagram 1

12. TEG Diagram 2

13. TEG Heat Transfer Analysis
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
At a temperature difference other than 200C
125
225
235
245
255
265
275
285
295
305
0.788
96.12
96.40
96.67
96.94
97.21
97.49
97.76
98.03
98.30
94.42
94.69
94.97
95.24
95.51
95.78
96.06
96.33
96.60
1.70
250
260
270
280
290
0.945
115.96
116.29
116.62
116.94
117.27
117.60
117.92
118.25
118.58
113.51
113.84
114.16
114.49
114.82
115.14
115.47
115.80
116.13
2.45
175
315
325
335
345
355
1.103
136.00
136.39
136.77
137.15
137.53
137.91
138.29
138.68
139.06
132.67
133.05
133.43
133.81
134.19
134.57
134.96
135.34
135.72
3.34
Measured Constants α
0.035
V/K Re
2.745
ohms
Rth
1.376
K/W K
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.

15. Morphological Chart

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

17. 1-low likelihood/severity, 2-moderate likelihood/severity, 3-high likelihood/severity

18. 1-low likelihood/severity, 2-moderate likelihood/severity, 3-high likelihood/severity

19. 1-low likelihood/severity, 2-moderate likelihood/severity, 3-high likelihood/severity

20. 1-low likelihood/severity, 2-moderate likelihood/severity, 3-high likelihood/severity

21. 1-low likelihood/severity, 2-moderate likelihood/severity, 3-high likelihood/severity

22. Pugh Charts
Stove Team

24. Pugh Charts
TE Team

29. Project Plan

30. Work Breakdown Structure

31. 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.

32. Questions?