Thread subject: Homeroasters - Home Roasting Coffee Community :: Bobby M15's drum

Posted by BobbyS on 07/29/2018 5:53 PM
#143

OK, just finished my fire test. Didn't blow myself up and the test was great; nice blue flame and had plenty of oxygen from the bottom only. Only thing I noticed was I had max flame with my needle valve about halfway open.

The pellet stove blower works great and has a full range of air movement low to high. Heats up fast even without insulation. Helps I guess that ambient temp is 96*.


The gas inlet is right in the middle pointing down. I have an ET thermocouple centered above the shaft in the back plate. It is about 2-1/2" from the rear of the drum. Also have ET thermocouple in the front at the lower right corner of the bean chute. There is 65* temp difference between the two with the back one being higher temp.

It will be interesting to see if they level out with each other when I have beans in it and it is up to full temp. I constructed the burners this way for ease of assembly of the whole unit.

Miles to go before we sleep


i.imgur.com/jveZVXd.jpg


i.imgur.com/oylvdUH.jpg

Edited by BobbyS on 07/30/2018 1:49 AM