How to calculate the electric tube power?
Industry commonly used thermocouple and thermal resistance type? In the case of
First, the design of heating pipe calculation, generally according to the following three steps:
1. Calculate the required power to be heated from the initial temperature to the set temperature for a specified period of time
2, calculate the maintenance of medium temperature under the premise of the actual need to maintain the temperature of the power
3, according to the above two kinds of calculation results, select the heater model and quantity. The total power takes the maximum of the two powers above and takes into account the 1.2 coefficient.
Formula:
1, the initial heating required power
KW = (C1M1? T + C2M2? T) ÷ 864 / P + P / 2
Where C1C2 is the specific heat of the vessel and the medium (Kcal / Kg ℃)
M1M2 are the quality of the container and the media (Kg)
△ T is the difference between the desired temperature and the initial temperature (° C)
H is the time required to heat the initial temperature to the set temperature (h)
P Heat capacity of the container at the final temperature (Kw)
2, to maintain the required temperature of the medium temperature pumping
KW = C2M3 △ T / 864 + P
Where: M3 increases the media per hour kg / h
