Features of Biogas Storage Tanks & Covers
Biogas storage systems are an active contribution to the generation of renewable energies, and thus to environmental protection in general. At SATTLER, concepts for the storage of biogas, liquid manure, or brewery residues have a long tradition. Double membrane gas holder for storing digester gas from waste water treatment plants. This biogas storage design has been tested and proven over the decades and now is an integral feature in the design of any modern waste water treatment plant worldwide. As the leading supplier of such storage systems, we keep the value chain as long as possible in our own company. Thus our own weaving and coating units ensure outstanding quality for the supply of the base material, PVC-coated polyester fabrics.
Storage tanks are designed to compensate for fluctuations in production and consumption, for volume changes due to varying temperatures and for stagnating consumption; furthermore, gas holders store gas for later use. With these parameters the optimal dimensioning can be determined. The ideal storage volume varies according to the plant design, the substrate mixture, and the management of the plant.
The goal is to enable consumers to operate at high capacity. Consumers’ performance should neither be influenced nor determined by fluctuating gas production, but should constantly operate at full load. Flaring excess gas should be avoided. Therefore excess gas production is buffer stored and lack of gas production is replaced by the stored gas. Conventional storage tanks hold volumes corresponding to a gas production of three to four hours.
The storage tank serves to balance out the continuous gas production and the discontinuous consumption. Low gas production will be stored over a longer period of time, followed by a shorter and higher-powered consumption period. That is why bigger storage tanks are required.
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