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Rocket stove biomass charcoal

2,921 bytes removed, 23:50, 9 May 2010
==Briquette Press Design==
[[Image:Press design0002.jpg|thumb|left]][[Image:Press design0001.jpg|thumb|left]]
 
== Results ==
 
===Briquette Process===
{| class="wikitable sortable"
|-
! Batch Number
! Amount of Ash
! Amount of Binder
! Briquette Dimensions (cm<sup>3</sup>) (length x width x height)
! Density (gram/cubic centimeter)
|-
| One
| One cup
| 4 tablespoons
| 4.5x7x1.9
| 0.42439 gram / cubic centimeter
|-
| One
| One cup
| 2-3 tablespoons
| 4.5x7x2.1
| 0.24943 gram / cubic centimeter
|-
| One
| One cup
| 3 tablespoons
| 4.5x7x3
| 0.59788 gram / cubic centimeter
|-
| One
| Two cups
| 3 tablespoons
| 4.5x7x2.5 & 4.5x7x2.4
| 0.44063 gram / cubic centimeter & 0.38888 gram / cubic centimeter
|-
| One
| One cup
| 2 tablespoons
| 4.5x7x2.0
| 0.31111 gram / cubic centimeter
|-
| Two
| 3 cups
| 9 tablespoons
| 4.5x7x2.7 & 4.5x7x2.0
| 0.42093 gram / cubic centimeter & 0.39047 gram / cubic centimeter
|-
| Two
| 3 cups
| 6 tablespoons
| 4.5x7x2.6 & 4.5x7x2.3 & 4.5x7x1.6
| 0.42735 gram / cubic centimeter & 0.42788 gram / cubic centimeter & 0.36309 gram / cubic centimeter
|-
| Two
| 1 cup
| 2 tablespoons
| 4.5x7x1.8
| 0.22575 gram / cubic centimeter
|-
| Two
| 1 cup
| 3 tablespoons
| 4.5x7x2.0
| 0.46031 gram / cubic centimeter
|-
|}
 
 
 
 
===Stove Tests===
{| class="wikitable sortable"
|-
! Trial #
! # of Briquettes Used
! Range in Temp.
! Burn Time
! Comments
|-
| One
| One briquette
| 65<sup>o</sup>f-85<sup>o</sup>f
| 40 minutes
| One briquette is not enough to bring water to boil, failed first run.
|-
| Two
| Four briquettes
| 75<sup>o</sup>f-180<sup>o</sup>f
| 1 hour 10 minutes
| Started with two briquettes and brought water to 105<sup>o</sup>f, added two more briquettes and brought the temperature up to 180<sup>o</sup>f. Nearly boiling conditions.
|-
| Three
| Five briquettes
| 75<sup>o</sup>f-210<sup>o</sup>f
| 45 minutes
| Started the burn with three briquettes and broke each in half to increase surface area which brought temp to 165<sup>o</sup>f. At 23 minutes added two more briquettes in similar fashion to achieve boiling of the water. Most appropriate for cooking a meal with a short cooking time
|-
| Four
| Six briquettes
| 75<sup>o</sup>f-220<sup>o</sup>f
| 55 minutes
| Started the burn with three briquettes and got temp to boiling point very fast (<10 minutes), then added three more briquettes quite early. Brought the water to a vigorous boil and then allowed boil to occur. Since we added the briquettes in a condensed amount of time, the total burn time was shorter but the maximum temp was reached. Most appropriate for cooking a meal that has a long cooking time.
|-
| Five
| Five briquettes
| 75<sup>o</sup>f-220<sup>o</sup>f
| 20 minutes
| Added all briquettes at the beginning and like the other runs, broke them all in half. Quickest time to boil (8.5 minutes) out of all the runs done. The boil was sustained for 18 minutes then died down to a simmer for another 15 minutes. Most appropriate for flash boiling water to purify.
|-
|}
==The Process==
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