<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Arial; font-size: 12pt; color: #000000'>List:<br> Here is the video that Das had previously promised.<br><br>Ron<br><br><hr id="zwchr"><b>From: </b>"Agua Das" <aguadas@onebox.com><br><b>To: </b>rongretlarson@comcast.net<br><b>Sent: </b>Tuesday, January 17, 2012 1:38:38 AM<br><b>Subject: </b>Re: [Stoves] Inverted top lit updraught<br><br>Here is the link to the Bronze melter video<br>http://www.youtube.com/watch?v=t08tj4NWUQY&feature=youtu.be<br>Das<br><br>On 1/16/12, Agua Das <aguadas@onebox.com> wrote:<br>> Cast Iron melting with wood<br>><br>> A wood fueled gasifier engine generator carbon arc can easily melt<br>> steel to pouring temperatures.<br>><br>> Torrefied wood has heating value close to coal. Torrefied wood as a<br>> cupola fuel should be able to melt steel, however the high hydrogen<br>> content torrefied wood fuel may cause hydrogen embrittlent and<br>> porosity. Metallurgical coke is coal which has been heated to reduce<br>> the H2 content.<br>><br>> Higher temperature char isvery low in H2 would make a good cupola<br>> fuel, especially if it is briquetted for a larger fuel lump size<br>> needed for hotter metal temperature. The resulting steel should be<br>> higher quality than with torrefied fuel.<br>><br>> I have successfully poured cast iron using acetylene to make an Imbert<br>> "V" hearth insert, however it was very hard on my refractory.<br>><br>> Temperatures inside a char bed can easily burn off steel, stainless,<br>> or inconel air nozzles.<br>><br>> The ejector is a good distance from the fuel bed to protect the ejector<br>> nozzle.<br>> The ejector creates suction to move fuel gas and controlled secondary<br>> air to produce a compact premixed flame with full control from<br>> reducing to oxidizing melting conditions.<br>><br>> Das<br>><br></div></body></html>