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Monitoring of methane (CH4) and carbon dioxide (CO2) in biogas from different feed-stocks using superluminescent diode (SLED) is proposed and demonstrated. The SLED has a broadband spectrum (1540 nm–1640nm) and this allows for the detection of CO2 at 1570nm and CH4 at 1600nm range simultaneously. Experiments were performed on biogas collected from various biomass like food waste, sewage waste and...
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