Patent ID: 9588093
Date: 2017-03-07
CPC Classifications: G01N

Claim:
1. A device for determining H 2 content of an H 2 /natural gas mixture comprising: an input interface configured to read in a calorific value of a first H an input interface configured to introduce a second H a proton-conducting layer fluidically connected to the input interface of the second H a volumetric flow rate sensor configured to determine a volumetric flow rate of the second H a control apparatus connected to the proton-conducting layer, the input interface of the second H (i) determine, using the current-voltage characteristic of the proton-conducting layer, whether the proton-conducting layer has a hydrogen depletion at a volumetric flow rate of the second H wherein if the control apparatus determines that the proton-conducting layer does not have a hydrogen depletion, the control apparatus changes the volumetric flow rate of the second H wherein, if the control apparatus determines that the proton-conducting layer has a hydrogen depletion, the control apparatus determines a critical current density of the proton-conducting layer at which the hydrogen depletion of the proton-conducting layer occurs with an associated measured volumetric flow rate of the second H (ii) establish, using a characteristic diagram, H (iii) determine a current calorific value of the second H (iv) output the current calorific value of the second H