The Economics and Feasibility of Electricity Generation using Manure Digesters on Small and Mid-size Dairy Farms

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The Economics and Feasibility of Electricity Generation using Manure Digesters on Small and Mid-size Dairy Farms ( the-economics-and-feasibility-electricity-generation-using-m )

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the desired temperature as well as the rate of gas production. Once generated, the gas may either be used to generate electricity, or to fuel other processes on the farm – typically heating. As all the farms that I know about use all their gas to generate electricity I assume that this will be the case in my study, although one should note that depending on the cost of heat relative to electricity, it may be optimal to use some of the gas for heating instead. In the process of generating electricity, a fair amount of waste heat is generated which can be used for ambient heating, the drying of solid effluent, and maybe even to heat the digester. As the value of non-electrical outputs of the digester is beyond the scope of this study I do not consider the optimal use and value of this heat. The electricity, once generated may be applied to off-set the farm’s own electricity requirements or be sold via the electric grid. MANURE State Variables: Quantity, Composition, Temperature, Dilution, Percent Frozen Collection and Transportation System. Digester Temperature LoadingRate GAS Gas share to Electric Generation DIGESTER Gas for Heating Purposes Generator ChoiceVariables: Capacity Utilization Schedule Heat Farm and Household Use Grid Farm Use Electric Share to Grid 5

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The Economics and Feasibility of Electricity Generation using Manure Digesters on Small and Mid-size Dairy Farms

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