Post by radek on Nov 21, 2013 1:30:22 GMT -8
Hi this is my reaction to this thread donkey32.proboards.com/thread/954/approx-btu-output-rocket-systems .So yesterday i have try to compare those two systems 20cm/8in J tube and 15cm/6in batch box.Both of them are in my house.For this test i have used really dry pine wood,one year in wood shed and 3days ontop of mý stove. Im calculating 4Kw per 1 kilo of wood at 100 percent combustion.So at 80 percent combustion¨/whitch is only a guess i use/its 3,2Kw per 1kg of wood.
So i have wormed up the batch box by burning half of full load in it.At 12pm i loaded the batch box full, whitch took 4.5kg of wood.At 12.25pm i was able to add /but the batch box wasnt fully empty yet/another 4kg of wood.At 13pm/one hour from start/there was pile of red ambers.So the 15cm/6in batch box is capable to burn 8.5kg of dry wood in 1hour whitch would be 8.5kg x 3.2Kw is 27.2Kw/h. I have to add i try to add as much of the wood as i could within this 1 hour run.Normaly i wouldnt run the stove like this.
The J tube 20cm/8in was warm as well when i start the test,and the pine wood was same as in the batch box.So at 18pm i filled the fire chamber with 2.5kg of wood,at 18.30pm i added 1kg and at 18.40pm 1kg more.At 19pm huge pile of ambers.So the 20cm J tube was able to burn 4.5kg of wood in 1 hour. 4.5kg x 3.2Kw is 14.4Kw/h but again in normal conditions i wouldnt run the stove like this.Donkey if you think it does not belong to this section please move it,i just wasnt sure.
So i have wormed up the batch box by burning half of full load in it.At 12pm i loaded the batch box full, whitch took 4.5kg of wood.At 12.25pm i was able to add /but the batch box wasnt fully empty yet/another 4kg of wood.At 13pm/one hour from start/there was pile of red ambers.So the 15cm/6in batch box is capable to burn 8.5kg of dry wood in 1hour whitch would be 8.5kg x 3.2Kw is 27.2Kw/h. I have to add i try to add as much of the wood as i could within this 1 hour run.Normaly i wouldnt run the stove like this.
The J tube 20cm/8in was warm as well when i start the test,and the pine wood was same as in the batch box.So at 18pm i filled the fire chamber with 2.5kg of wood,at 18.30pm i added 1kg and at 18.40pm 1kg more.At 19pm huge pile of ambers.So the 20cm J tube was able to burn 4.5kg of wood in 1 hour. 4.5kg x 3.2Kw is 14.4Kw/h but again in normal conditions i wouldnt run the stove like this.Donkey if you think it does not belong to this section please move it,i just wasnt sure.
