Summary
It is necessary to take thernial properties into account in designing a methane fermentor system. Therefore, the thermal properties of a two-phase anaerobic fermentor being used as a pilot scale fermentor were evaluated by heat balance analysis.HomePage
The results obtained are as follows ; The apparent over-all heat transfer coefficients of the acid fermentor and the methane fermentor were 1.41 and 2.08 kcal/ (m2.h.centigrade), respectively. The film heat transfer coefficients of the inner walls of the fermentors were 29.83 and 28.75 kcal/(m2.h.centigrade), respectively. The ratio of theriral loss to the supplied heat capacity of each fernientor was also evaluated. In winter, the theriral loss from the fermentors themselves was the greatest, 35.6%, and in summer the loss from the hot water piping was the greatest, 34.9%.