Natural gas interchangeability in China: some experimental research

Because of the difference between gas appliances in current China market and those research targets many years ago, the well-established index- and diagram-based methods to predict interchangeability cannot be taken as applicable to natural gases from different sources. 9 cookers and 6 water heaters were sampled and tested to evaluate response to varying constituents. Some efficiency and CO emission changes were observed. Results suggested further theoretical analysis and criterion be required to quantitatively define gas interchangeability.