ETHOS 2005 Summer Camp

ETHOS 2005 Summer Camp August 21-27, 2005

Dean Still, Aprovecho

Dear STOVERS AND ETHOS:

You'll find attached the results from the Stove Competition held at Aprovecho this week.

HOOD SUMMARY AUG 29 2005

The results are summarized in four categories:

1.) Time to boil 5 liters of water

2.) Fuel to 'cook' per liter (Bring 5 liters to boil, simmer for 30 minutes)

3.) Carbon Monoxide made per liter of water boiled and simmered for 30 minutes

4.) Particulate Matter made per liter of water boiled and simmered for 30 minutes

1.) There is a large difference in the time it takes for stoves to boil 5 liters of water. The slowest stove took 50 minutes while the fastest took less than ten minutes. Stoves with skirts, where the hot flue gases are forced to scrape against the bottom and sides of the pot, are more successful in this category. For instance, Paul Anderson's T-LUD stove used a skirt in the first test but not in the second. The Institutional Rocket uses a very large pot which gives it an important advantage.

2.) Three stoves used less than 100 grams of wood (kiln dried Douglas fir) per liter to boil 5 liters of water and then simmer the remaining water for 30 minutes. Four stoves were grouped around 150g/l. Again stoves with skirts around the pot used less wood.

3.)Paul Anderson's T-LUD stove was very successful at high power in decreasing emissions, both CO and PM. Five of the stoves made about half the CO compared to other stoves in the competition. The Institutional Rocket stove, similar to stoves being made by GTZ and WFP, made less than one g/L.

4.) Again, at high power the T-LUD was impressive in reducing PM. Ken Goyer's Rocket stove made about 25 mg/L. The second best stove, made by Dale Andreatta, emitted about 75 mg/L.

This was fun and we all learned a lot! As soon as the numbers are ready we will be sending on results from comparing systems that measure emissions.

An hour long video was shot at Stove Camp which will be available when it is finished.

Thanks to Shell Foundation for their support.

Best,

Dean

Dean Still
dstill@epud.net
Aprovecho Research Center
www.aprovecho.net

Kens Rocket w/Insulated skirt, camp 5 abbreviated test
Bangladesh Mud Stove Camp 4 Abbreviated Test
WFP 310 -- Camp 5
T-LUD -- Camp 6
Ethiopia Rocket Stove Camp 7 Abbreviated Test
Dale's Stove -- Camp 08
Institutional 310 Rocket -- Camp 09
Lutfiyah's Improved Stove -- Camp 10 abbreviated
Paul's T-LUD Camp 11
Priyagni Wood stove -- camp 11


1. Group Photo	2. Nordica, Lutfiyah, Damon installing emissions equipment

3. Nordica, David, Chris, damon at Hood Test	4. Pot and test equipmnet

5. Outside Smoke Chamber for Instruments	6. Instruments in chamber

7. Ken Feeding Stove wth Damon and Steve Monitoring Results	8. Larry, Mousine and Lutfiah Discuss Fundamentals

9. ___, Nate and Paul Assembling the TLUD	10. ____, ___ and David

12. Steve and Nate	13. Tami Contemplating Results

14. The TWP Careamic Stove with Test pot	15. Clay Creations

16. The Datalogger	17. Dale Leads Seminar

17. David and Lutfiyah testing	18. Nate Discusses Safety

19. Mousihine tries On Safety Hood in test Kitchen	20. Test Kitchen

21. ordica and Dean Discuss Ventilation Test Results	22. Paul Demonstated Tetrapak RHC and CEDESOL Frame

23. CEDESOL RHC WITHOUT TOP	24. Stove Submitted for Development and Test

25. TLUD Top Lit Updraft? Assembly And Fule Chamber	26. TLUD Mixing Throat

27. TLUD Gas Combustion Chamber	28. TLUD Primary Air Control

29. Demonstrating the Perfect Gas Laws