The Penn State 100-cow capacity diegester system - 100 m3 (Upright Silo), heated (35 Cel), continuous feed (1-2 times daily), gas agitation (continuously) - operated dependably on a continuous basis for periods as long as 9 months. Alternative systems for handling high solidscontent input (up to 15 % TS) wered tested. Daily feedings of dairy manure slurries (8-15 % TS) at rates of 345 to 1030 kg VS resulted in total biogas production rates of 70 to 200 m3/day, respectively. Increased loading rates, and related reduction in retention time to as low as 1 days, increased the energy recovery ratio (m3 biogas/m3 digester voluem) to 2.02. Daily energy production was as high as 35,000 kJ/cow. Part of the biogas produced was used satisfactorily as fuel for a hot water boiler to heat incoming slurry and offset the digester heat losses. Tests of biogas as fuel for a water heater and for internal combustion engines showed combustion efficiencies comparable to other fuels on the basis of its energy content. (Wassmann)


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    Title :

    Energy production potential of a 100 m3 biogas generator


    Additional title:

    Energieerzeugungspotential eines 100 m<sup>3</sup> Biogaserzeugers


    Contributors:

    Published in:

    Publication date :

    1981


    Size :

    6 Seiten, 4 Bilder, 6 Tabellen, 6 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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