ETW Energietechnik Develops New Gas Blending Technology For CHPs
Innovative solution said to improve the feasibility of land-fill gas and other CHPs
ETW Energietechnik GmbH developed a new equipment that blends two gas streams of different qualities to fuel CHPs. This equipment precisely blends the two gases to a homogeneous fuel mixture and is indicated for landfills that struggle with shrinking heating values and volumes of biogas along their lifetime. This shrinking heating value can be compensated by gradually enriching biogas with natural gas (NG). The blending is completely automatized and designed to consume the lowest possible amounts of NG. Almost any CHP can easily be upgraded.
There are several advantages for the operator. At startups the CHP receives the perfectly balanced fuel, preventing startup problems caused by low CH4 concentration. That enables the operation of CHPs even with CH4 concentration lower than 30%, increasing its lifetime and availability, thus its economic feasibility. The CHP can be operated independently from the land-fill gas supply.
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