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Design Considerations: Gas Storage

Design Considerations: Gas Storage

Gas storage is another important factor in the AD system. During the course of the day gas production varies based on many factors, diet fed to the animals, temperature, substrates added, day to day changes in farm operations, etc. The ability to store gas and consume the gas when desired is very important. Without variable gas storage gas use must equal gas production. This is a very limiting factor when sizing the equipment for the gas use. Another important factor in gas storage is the ability to use the gas when rates are higher. Many of today’s power purchase contracts offer premium...

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Custom System Design

Custom System Design

Northern Biogas is your one-stop provider when it comes to designing and installing anaerobic digester systems on your farm. As owners of dairy farms, the professionals at Northern Biogas know that each farm operation is different when it comes to animal housing and management, site layout, power requirements, grid access and more. It is because of this fluidity we approach each job with a blank sheet of paper. Our years of experience allow us to develop systems that are the most efficient and sensible for our clients. For an idea on how a system can add power, efficiency, environmental...

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Design Features: Parasitic Load

Design Features: Parasitic Load

Parasitic Load In our example parasitic load is the energy required in the anaerobic digestion process that is not contributing to the net electric yield. If operating a blower or mixer is required to make the digester work, that energy cost should be deducted from the energy the digester creates to obtain the net yield. Typically the greatest parasitic load in a digester would be generated by blowers and mixers.   Let’s look at two systems; a typical partially mixed plug flow which is mixed by continuously operating blowers and a typical complete mix system...

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