Choosing the Optimal Economic Size of the Batch Closed Digester Providing with Solar Energy During Thermophilic Anaerobic Digestion

This research aims to study the effect of the digester size on its thermal requirements in order to reach the optimal economic size to him. Where were studied a batch closed digester with solar collector, where he was measuring a thermal requirements at the same ambient conditions with the change of the size of this digester, in order to note the relative change of the heat requirements, and to get the optimal size that requires the least amount of energy in thermophilicanaerobic digestion.