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The proposed system allows the control of the generated biomass , regulating the variable with the most influence on the generation of Biogas , which is the temperature . The measurement of the temperature will be made by three sensors that detect the physical magnitude , in this case , temperature ; later said signal is conditioned to take it to a PIC , where the controller and the set point set are implemented . The control algorithm calculates the action on the process that will be carried out by a servo-valve regulating the gas flow that feeds the burner . This system guarantees that the desired temperature range is found throughout the retention time of the biomass in the degradation chamber , thus massifying the production of Biogas in a short period . ADVANTAGE 1 . Better control over integrated recycling projects is obtained by simplifying the door-to-door collection of biodegradable waste including discarded toilets . 2 . Use concentrators parabolic solar to minimize the time of obtaining bioabs and biogas . 3 . It can be operated at higher temperatures , obtaining yields per hour of fermentation 4 . The user selection of the type of solar dryer must adapt to the handling of the product both wet and dry , accommodating the drying process to the product with the desired characteristics . The dryer must be evaluated according to its costs and performances .
The use of a solar tracking azimuths to control temperature in the thermophilic range improves the production of biogas , reaching a much more efficient and faster process , since the production level is increased and the process dynamics are improved . It evacuates and supplies organic matter more quickly for constant production .
• Due to the use of greenhouse gases to minimize the effect of the variation rate of the temperature system , it is necessary to use a derivative constant for the power supply of the photovoltaic system using a PI controller that would allow us to reduce the stationary error .
• The system allows reducing the proportions of water per unit volume of organic matter , you get a better production of biofertilizer simply increases the amount of organic matter .
• The use of the agitator reduces the temperature gradient between the upper and lower part of the biomass content , thus avoiding the concentration of thermophilic bacteria within a single specific zone .
• It uses three thermal sensors to determine that the temperature gradients between the three high , medium low levels are not very large and thermophilic concentration zones are not created in order to give the controller a greater definition in the taking of the variable ( Temperature ) .
THERMOPHILIC BIODIGESTER
STUDY
APPROACH
They are defined solely for the use and disposal of waste organic and effluents from market places and farms isolated or poultry farms where the excess level of generation of organic waste becomes a serious problem , it could also use pig farms and dairy farms in the country , Whose size corresponds to a suitable handling for the treatment of excreta and use of its product ( biogas ), to obtain thermal and / or electrical energy , or in its case , the minimum bio-fertilizer . The system is mobile and has the advantage of not being a centralized process for the management of biodegradable residues of agricultural origin from specific areas such as market places or agricultural markets as it can be suitable for excreta , animals kept in technified farms or semitechnified of pigs and dairy cows , considering not only in the case of cows the possibility of transporting them to the grazing batch or for the pigs , their transport to each of the productive units due to the variability of the populations in different stages reproductive , so , for the determination of the kg of excreta generation , this variation should be included in calculations , which are sent to a small lagoon-type biodigester , with a system of agitation and removal of sludge , a secondary lagoon , a system of collection , conduction and energetic utilization of biogas and a burner .
TEMPERATURE AND ADVANTAGES THERMOPHILIC BIODIGESTER