I am on this project in building food dryer to dry 2 kg fish cracker maximum per use. Based on the calculation, I only need to use power of approximately 60 watt for the heating to achieve the energy required to dry the food.
So, here is my question:
1)Is it possible to have only a 60 watt of heating element to dry 2 kg of food?
2)How can I select for a heating element? (I also use a blower fan to distribute the heat in the food dryer uniformly)
3)If I want the user can enter the temperature that they want(maximum will be 80 degree Celcius), how can I connect the heating element with the knob and Arduino? Here I also use a temperature sensor to detect the surrounding temperature inside the dryer.
I am very much a beginner and really have a difficult time in understanding the working principle of an electrical circuit with a heating element. I am aware that the principle is similar to the oven but I dont know how to improvise it since I am using a microcontroller here which I cannot find any commercialized example of such oven in in the market. I really appreciate your help or comment and thank you for helping me.