This article aimed at analyzing the techno-economical analysis of electricity generation from the AD of a given biogas plant at a location in Çiçekdagı, Kırs¸ ehir. An integrated manure management process in the farm using anaerobic digestion was the focus of this study. With HRT as 33 days, the performance of a 2713 m3 volume AD plant showed stable operations reaching the total biogas yield per hour close to 2851.6 m3. Under these conditions, the producible electricity energy and the producible heat energy, respectively, have been 277.99 kWh and 320.76 kWh per day. If the selling price of electricity follows the Turkish market cost of V0.1/kWh, then the energetic pay-back time will be 3.7 years. The residual heat can be used for heating AD or surrounding houses during a significant part of the year and for drying digested
manure. If the residual heat is not used, then the pay-back time
increases to 5.3 years. A lower energetic pay-back time could be
obtained with a lower disposal cost of digestate. The most
important issue to be considered in the use of co-substrate is to
obtain higher biogas quantity and lower transportation cost.
Energy balance was assessed to be negative for feedstock transportation
distances in excess of 18 km, 70 km, 107 km, and 126 km
for cow manure, sheep dung, sugar beet, and energy maize,
respectively, which defines the operational limits for the respective
feedstock transportation.
This article aimed at analyzing the techno-economical analysis of electricity generation from the AD of a given biogas plant at a location in Çiçekdagı, Kırs¸ ehir. An integrated manure management process in the farm using anaerobic digestion was the focus of this study. With HRT as 33 days, the performance of a 2713 m3 volume AD plant showed stable operations reaching the total biogas yield per hour close to 2851.6 m3. Under these conditions, the producible electricity energy and the producible heat energy, respectively, have been 277.99 kWh and 320.76 kWh per day. If the selling price of electricity follows the Turkish market cost of V0.1/kWh, then the energetic pay-back time will be 3.7 years. The residual heat can be used for heating AD or surrounding houses during a significant part of the year and for drying digested
manure. If the residual heat is not used, then the pay-back time
increases to 5.3 years. A lower energetic pay-back time could be
obtained with a lower disposal cost of digestate. The most
important issue to be considered in the use of co-substrate is to
obtain higher biogas quantity and lower transportation cost.
Energy balance was assessed to be negative for feedstock transportation
distances in excess of 18 km, 70 km, 107 km, and 126 km
for cow manure, sheep dung, sugar beet, and energy maize,
respectively, which defines the operational limits for the respective
feedstock transportation.
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