Tubular heater power calculation
Tubular heater power calculation
1. Calculate the required power to heat to the set temperature from the initial temperature within the specified time
2, to calculate the maintenance of the medium temperature under the premise of the actual required temperature to maintain the power
3, based on the above two calculations, select the type and number of heaters. The total power is taken as the maximum of the two kinds of power and consider the 1.2 factor.
formula:
1, the power required for the initial heating KW = (C1M1T + C2M2T) ÷ 864 / P + P / 2
Where: C1C2 are the specific heat of the container and the medium (Kcal / Kg ℃)
M1M2, respectively, the quality of containers and media (Kg)
T is the difference between the required temperature and the initial temperature (° C)
H is the time required for the initial temperature to reach the set temperature (h)
P Container thermal dissipation at final temperature (Kw)
2, to maintain the medium temperature pumping power required KW = C2M3T / 864 + P
Where: M3 medium per hour increased kg / h
