Integrated micro Wobbe index meter towards on-chip energy content measurement

In this paper, the first step towards an on-chip energy content measurement system is presented. The system comprises an integrated micro Wobbe index meter, consisting of 2 gas inlets, a mixer, a combustion chamber, heaters, temperature sensors and an exhaust outlet. With an integrated micro Wobbe meter, the energy content of natural gas, biogas, hydrogen and other fuel gases can be measured accurately, in-line, real-time and with very little gas consumption. First measurement results have indicated the feasibility of the concept.