We bake many different types of muffins thru our oven. We have a problem with the color of the muffin is from the extreme right and the extreme left of our rack. There are about 38 racks and each rack is around 13' wide. Our burners have three tubes, one marked near one intermdiate and one far. Each has a flow adjustment. The gas is at 0 lbs and the air draws it thru a gas flow regulator that we use to adjust the air/fuel mixture. Our problem is trying to get the flame even from on end to the other and still keep it lit. Problem is I cant really see the flame on the other end very well and it keeps me from knowing at what point we are burning the muffin Since we have 5 different zones with top and bottom burners. Each Zone are not physically seperated, except for the air supplying the burner tubes.
My main concern is to get each burner the same in every one of the five zones. Each zone has a thermocouple and feeds a controller that regulates the air pressure of each zone for low and high fire. My second problem is we dont just use the same burners all the time for eavery product. Each product has a different profile, which calls for different burnmers to be on. Which I dont agree with, I need to be able to check the difference between each side and show it on a graph so they can understand the difference's in the profiles. Plus that would me to keep right burners working. We have about 70.
I want to set the Flynn flame controllers up so the SLC controlls them and not the operator.
We also have a 70' Gemini indirect fired oven that we have run a MOLE thru. This is just a recorder that samples temps with 10 thermocouple inputs. We are then able to download the results and show it on a graph. We use this info to know where we need to open or close the slot in our zone controls. I want the same for the direct fired oven, but was hoping I could just build my own. Last night I brought in my cheap food thermometer and wrapped it up in a oven mit then placed it in a enclosure. I then put that box in another enclosure and stuffed a bunch of oven mits around the first box. I sent this through the oven and found it only reached about 100 deg inside the inner mit. It didnt harm the cheap digital thermometer so I thought I could do the same thing with a 8 input data recorder using thermocouples.
Gunner,
I can contol each zone's heat but I cant control the uniformity of each burner without knowing this data since I only have 3 small windows to see thru. We use these side thermocouples but they are only on one side of the oven and are right next to a burner. Very inaccurate in my opinion. But this data only helps me if I can fix the root problem of keeping the burners lit. If I turn down my near adjustment I run the risk of the burner not staying lit, if I turn my far up I cant see how far to much is. I need a "window" to see whats going on in each zone.
Thanks for all the ideas,
Is there a limit on the length of the thermocouple wire?