Calorific value: fiscal measurement in the multi-gas era

Fig 1: Gas Chromatographs, like the QMicro by Sensirion are a reliable way to precisely measure the calorific value.
Fig 2: Calorific value of gas distributed across a city can vary significantly when h2 & biomethane injection points are present
Figure 3: Thermal mass gas meter modules supplied by Sensirion are used to build compact and cost-effective static smart meters.
Fig 4a): Measured accuracy of calorific value measurements in natural gases, based on the output of Sensirion modules.
Fig 4b): Simulated accuracy of calorific value measurements in natural gases, based on the output of Sensirion modules.
Fig 5: Simulated accuracy of calorific value measurements in LNG gases containing up to 30 % hydrogen.
Fig 6a): Simulated accuracy of calorific value measurements in natural gases containing up to 30 % hydrogen + MEMS sensor
Fig 6b): Simulated accuracy of calorific value measurements in natural gases containing up to 30 % hydrogen + optical sensor.

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