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- W2890156564 abstract "The advantages of recording micro change in pressure every second inside a biogas production digester using strain gage measurement was well demonstrated in this work. The production of biogas from a composite of Lemon grass and Poultry droppings was carried out by measuring the total gas pressure exerted on the surface of sealed near-cylindrical plastic container used as a digester. The suitability of using a combination of lemon grass and poultry droppings for biogas generation and the determination of an optimal mixing ratio to maximize gas production was studied. The aerobically pre-fermented substrates were mixed in five different ratios labelled 'Digester A-E' respectively to form composite and the formed slurry was digested for 30 days in the five (5) different digesters lagged with fiberglass wool. Pressure values were determined using the principles of 'thin walled cylindrical pressure vessel' computed from the strain gage rosette readings. The results after 30 days show that Digester B with lemon grass had the highest gas production with a pressure of 41.8 kP. Digester C which contained 100% chicken droppings had a pressure of about 11.5 kP, but when mixed with lemon grass inside digester E, in a mixing ratio of 70% to 30% respectively, the pressure of the gas produced increased to 26.5 kP. This is an increase of about 15 kP which is a little over double the amount of gas produced with only chicken droppings. Thus, the result of mixing 30% of lemon grass and 70% of chicken droppings doubled the gas production potential of chicken droppings. Digester A (with 50% lemon grass and 50% chicken droppings) and Digester D (with 70% lemon grass and 30% chicken droppings) had pressures of 17.4 kP and 32.7 kP respectively." @default.
- W2890156564 created "2018-09-27" @default.
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- W2890156564 date "2018-09-10" @default.
- W2890156564 modified "2023-09-25" @default.
- W2890156564 title "Comparative study of biogas production in composite of poultry droppings and lemon grass using pressure computed from strain gage rosette" @default.
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- W2890156564 doi "https://doi.org/10.1088/1757-899x/413/1/012031" @default.
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