Dokumentation av en experimentell biogasanläggning
This thesis is focused on identifying and documenting all electrical equipment, such as devices, power lines / cables, and connectors in the facility and also on presenting a brief technical description and information of the systems around the reactors. Furthermore there will be a brief description of LabVIEW - which is a graphical programming language- and which devices / elements are programmed. For further notification, I am not responsible for the programming of the devices in LabVIEW which I have only used as a tool in my work. The plant for production of biogas consists of four reactors of which the third reactor (Lakbädden) is connected to another reactor (UASB) where they cooperate with each other. The reactors are used for producing biogas in the form of methane gas.The reactors I and II are connected to, various electrical devices as, flow meters, temperature sensors, frequency converter and more. In order to control and manage the various electrical devices or elements, the USB-6009 (DAQ) is being used, which is programmed through the LabVIEW, to control and monitor the devices. Reactor lakbädden and reactor UASB is also linked to various electrical devices, with the difference that you don?t use the USB-6009 (DAQ), only the voltage and current supply and PLC (Programmable Logic Controller) are used to control the system. Both reactors are connected together and interact with each otherThe aim is to clarify an overview and review of the biogas plant plus to explain what mechanisms that are involved electrically and how the system works and relates technically, by using wiring diagrams, drawings and pictures.