1. A sustainable cooker for the Ruzizi Valley,
The Solar oven
A sustainable cooker for the
Ruzizi Valley,
Democratic Republic of Congo
UNIV 391: Appropriate Technology for the Developing World
December 9, 2009
David Dyk, Tyler Blumer, Alex Eames

2. Introduction Defining the Problem Design Criteria
Evaluation and Investigation
Stake Holder Analysis
The Plan
The Grant Proposal
Tyler

3. Ruzizi Plain, Eastern Democratic Republic of Congo
David

4. David

5. The Problem
Indoor Air Pollution Deforestation

6. Evaluation of Previous Models
Box Cooker
Panel Cookers
Parabolic Dish (Direct Cooker)
Indirect Cooker

7. Primary Constraints Cooking System Contextual Constraints
High temperature
Locally constructible
Local materials
Contextual Constraints
Evening cooking
“Stove top” cooking
Indoor cooking

8. Initial Evaluation

9. Another Alternative Rice Hull Cooker 9

10. Stake Holders’ Analysis
12,000 Villagers
WVI
Appropriate Technology Program
Negative: charcoal and fuel wood merchants would be losing income
(not in larger WVI community)

11. Three Major Components of The Solar Cooker
Heat Reservoir
Collector
simple stove

12. Thermal Storage Prototype

13. The Benefits 6-7 hours of cooking time
24 hours day of warming / drying time
Smokeless
Lets operator stay indoors
Lets operator Fry / Sear food instead of bake
Separates operator from collector

14. The Game Plan Stage One Stage Two Stage Three Area Assessment.
Angle of solar reflectors to maximize gain
Find apprentices (20)/Meet with apprentices
Stage Two
Gathering raw materials : sand, clay, pumice, bricks and tiles.
Procuring mirrors
Stage Three
Assembly
Empowering apprentices
Apprentices take over production

15. Gantt Chart

16. Grant Proposal : Scope Goals Objectives
Create a sustainable solar cooking solution for impoverished countries
Ruzizi village would provide a model
Improve lives of people in the village by offering alternative to traditional cooking method
Objectives
Evaluate current and future solar cooking designs
Work with WVI to implement solar cooking solution

17. Grant Proposal: Background
Problems
Indoor air pollution
Deforestation
Flooding and loss of crops
Challenges
TSD and collector cost
Solve with available materials
TSD peak temperature
TSD and collector performance
Solve through concept development
Stakeholders’ Analysis.

18. Grant Proposal: Plan of Action
Evaluation with decision matrices
Three project implementation stages
Timeline
Assessment
Customer satisfaction
Firewood usage
Indoor air quality
Quality of life (time savings)
Life cycle cost

19. QUESTIONS?