ÿþ<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <title>Forge - Diablo - Porter Interview - Chileforge.com </title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <link href="style.css" type=text/css rel=stylesheet> </head> <body bgcolor="#231F20" topmargin="0"> <div align="center"> <table width="750" border="0" cellspacing="0" cellpadding="0"> <tr> <td><a name="page_up"><img src="images/home_banner.jpg" border="0"></a></td> </tr> <tr> <td height="25"> <table width="950" border="0" cellspacing="0" cellpadding="0"> <tr> <td align="left" width="70" class="topnav"><a href="index.html">HOME</a></td> <td align="center" width="1" class="topnav">|</td> <td align="center" width="80" class="topnav"><a href="forges_index.html">FORGES </a></td> <td align="center" width="1" class="topnav">|</td> <td align="center" width="88" class="topnav"><a href="faq.html">F.A.Q.</a></td> <td align="center" width="1" class="topnav">|</td> <td align="center" width="165" class="topnav"><a href="links.html">TESTIMONIALS</a></td> <td align="center" width="1" class="topnav">|</td> <td align="center" width="92" class="topnav"><a href="news.html">NEWS</a></td> <td align="center" width="1" class="topnav">|</td> <td align="right" width="120" class="topnav"><a href="contact_us.php">CONTACT US</a></td> </tr> </table> </td> </tr> <tr> <td align="center" valign="top" height="5" bgcolor="#FFFFFF"></td> </tr> <tr> <td align="center" valign="top" bgcolor="#FFFFFF" class="forges_nav"><a href="forges_tabasco_details.html">Tabasco</a> &nbsp; &nbsp; | &nbsp; &nbsp; <a href="forges_habanero_details.html">Haba&ntilde;ero</a> &nbsp; &nbsp; | &nbsp; &nbsp; <a href="forges_jalapeno_details.html">Cayenne</a> &nbsp; &nbsp; | &nbsp; &nbsp; <a href="GrandePage.html">Chile Grande</a> &nbsp; &nbsp; | &nbsp; &nbsp; <a href="NewDiablomainPage.html">Burners</a> &nbsp; &nbsp; | &nbsp; &nbsp; <a href="forges_itc100.html">ITC-100</a> &nbsp; &nbsp; | &nbsp; &nbsp; <a href="forges_accessories.html">Accessories</a></td> </tr> <tr><td bgcolor="#FFFFFF"><hr size="1" width="100%" color="#EAEAEA"></td></tr> <tr> <td bgcolor="#FFFFFF"> <table width="925" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="30"></td> <td align="left" valign="top" width="720"><br> <strong>Michael Porter Interview</strong> </a> <br> <br> <strong>What was the state-of-the-art in burners when you wrote your first book?</strong><br> In my view, state of the art for forge, furnace, and kiln burners saw funnel openings<br> replaced by large enclosed air chambers with rounded slot air intakes instead of holes; <brthey featured an in-line gas tube and MIG tip gas jet. <br><br><strong> Where does the Diablo burner fit in the evolution of gas burners? </strong><br> Since slot shapes obviously improved burner performance over holes, I took the idea a step further<br> by using rectangular openings with bevel edged ends, in order to reduce air drag to the absolute minimum. <br>The new design also increased flow speed of the gas/air mixture down the mixing tube.  <br>Increased flow speed allowed use of parallel stepped nozzles. <br><br>Chile Forge has improved my burner design through the use of industrial construction techniques, <br>like precision cut air openings, creating a standardized version; the finest burner I've yet seen.<br><br><strong> Having tested the Diablo, how does it compare to other burners on the market? </strong><br> The Diablo burner can be tuned to a near perfect single wave front neutral flame throughout nearly all of its <br>turn-down range, which is the range that a flame can be reduced from its highest stable setting, to the lowest <br>stable setting a given burner can put out. So far as I know, no other burner can or does make such a claim.( <br><br><strong> Are BTU charts an accurate way of comparing burner performance?</strong> No; British Thermal Units are the <br>measure of total heat produced by a given fuel, or of the system that a fuel is run through. BTU ratings have <br>nothing to do with burner efficiency or highest flame temperature. Going by these ratings, the hands down <br>winner among gas burners would be cheap imported weed burners. To use an extreme example, forest fires <br>put out a plenty of heat, but they aren't useful for doing practical work. Powering heating equipment with a <br>weed burner isn't very practical either. ( ( <br><br> <strong>Please explain what the burner flame shows about burner performance.</strong> <br> The flame's look and sound indicate what kind of combustion is happening at any given moment; <br>for instance, any hint of green in a flame indicates incomplete combustion, not only of the primary flame, <br>but predictably in any secondary flame also. A dark blue flame indicates that it is an oxidizing flame, <br>which is to say that there is too much oxygen available in the fuel/air mixture. Both oxidizing (oxygen rich) <br>and reducing (fuel rich) flames will run at lower temperatures than neutral flames. Reducing flames will<br> also produce carbon monoxide, while oxidizing flames cause excessive oxidation of heating parts in forges, <br>and many problems, including accelerated breakdown of crucibles, in furnaces. A light to medium blue color<br> indicates a neutral flame, which is normally what is desired; there are exceptions to this rule; at times an <br>operator may wish to use a slightly reducing flame to assure desired results in forge welding, and in some <br>pottery work. I don't know of any advantage to an oxidizing flame.( <div align="center"><a href="#page_up"><img src="images/bttn_up.jpg" border="0"></a></div> <br><br> </td> <td width="20">&nbsp;</td> </tr> </table> </td> </tr> <tr> </tr> </table> <br><br> </div> </body> </html>