Power calculation for electric heater GYY4-220/2:
1. Calculate the power required to heat from the initial temperature to the set temperature within a specified time.
2. Calculate the power required to maintain the temperature under the premise of keeping the medium temperature constant.
3. Based on the above two calculation results, select the model and quantity of the heater. The total power takes the maximum of the two powers and considers a factor of 1.2.
Formula:
1. Power required for initial heating KW = ( C1M1T + C2M2T )÷ 864/P + P/2
Where: C1 and C2 are the specific heat of the container and medium respectively (Kcal/Kg℃)
M1 and M2 are the mass of the container and medium respectively (Kg)
T is the difference between the required temperature and the initial temperature (℃)
H is the time required to heat from the initial temperature to the set temperature (h)
