KMM Bio flowmeter: How to measure the smallest quantities
With the odorization of biogas, LEWA faced the challenge of dosing the smallest quantities. Small in this context means 0.003 l/h of odorant (150 Nm³ gas times 0.02 ml/Nm³ concentration odorant in the gas = 3 ml/h flow rate). The KMM Bio flow meter developed by LEWA solves this task. This makes it possible to measure low odor flow rates. In combination with the LEWA control unit (OCU), changes to the dosing volume can also be detected at any time and compensated in a closed loop. The solenoid operated flowmeter can be calibrated and repaired on site.
The biogas odorizing systems from LEWA also ensure a correct metering even with gas flow range of 150 Nm³/h with a gas pressure of up to 20 bar. They odorize the biogas with THT which is commonly used in Germany. It is a volatile, typically smelling organic sulfur compound.
Further advantages of the LEWA odorizing systems for biogas:
Biogas – how is it produced and used?
In the production of biogas both liquid biomass and manure can be used. Collected in the pit, the substances are led into the fermenter. In the light and oxygen protected tank, anaerobic microorganisms digest the substrates. In this process, methane and carbon dioxide are released–the biogas. Later, it can be used for electricity, heat and fuel, or fed into a natural gas network.
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