PID pizza oven

[Medister]

#3594

Hi,

I am planning to make a traditional-shaped pizza oven, but with seperate gas-flames under the floor and in the chamber.

Atleast one thermometer in the floor should determine the amount of gas under the floor, and atleast one thermometer in the air in the chamber should determine the amount of gas in the chamber. I guess this is piece of cake for the osPID, but what can I use to control the amount of gas from 10-100%. And i have to be sure that the gas actualy burnes!

And I would love to control the PID from my iPhone:)

I know, my english sucks, sorry.

Christer

[Cracked]

#4003

This is going to need a lot more than just ospid. You will need some kind of actuated valve to control the gas flow, and some way to interface between the ospid and the actuator. Im sure there will be suitable commercial options, but they are likely to be industrial products and I imagine it will take some development or software and/or hardware to use them.

I dont quite follow why you have two independent burners, but the ospid does not natively support 2 inputs or outputs, so more work would be required here. Im not even sure if PID control is going to be worth the effort for this application (although sometimes its just because you can!)

[ControlFreak]

#4004

I think I know why you want 2 burners (If you are as fussy about pizza as I am) 1 burner for the air temperature and 1 for the floor temperature. I have used gas rectified ac solenoids in my coffee roasting equipment which are 2 stage a minimum so it never goes out and a high by applying rectified ac by way of an ssr relay from the pid controller, works very well. Italian solenoids Tandem I think is the name.

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