f continuous action by sharp steam at p = 4 kg/cm 2 from 30 to 130 o C. Steam is injected to mass through the orifices. Volume of nutrient medium for filling of fermenter - 18m 3 . Duration of sterilization processes, holding and cooling of medium - 2 hours.
Initial datasharp steam pressure4 kg/cm 2 temperature initial30 про Сtemperature final 130 про Сquantity of nutrient medium27 m 3 duration of sterilization process3 h
of sterilizing column is the volume of heated mass
sc = 27/3 = 9 m 3 / h
of heat necessary for heating of mass
h = V sc ? < span align = "justify"> c (t 2 - t 1 ) = 9 ? 1065 ? 1 (130-30) = 959500 kcal/h
h = ((9 ? 1065)/3600 ) ? 4186 (130-30) = 1115 ? 10 3 W
? - density of medium (volumetric mass);
? = 1065 kg/m 3 ;
с - heat capacity of medium;
з = 1 kcal/(kg ? grad) [4186 J/(kg ? grad)];
1 and t 2 - initial and final temperature of medium; 1 = 30 and t 2 == 130 В° С.of heat on sterilization subject to losses of heat into environment in quantity 2% ster = 1,02 Q ...
