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  1. GarethJones

    Why is the cross limit function in boiler and how does it work?

    Cross limiting is carried out by the boiler control system and forms part of the boiler safety systems. Its function is to prevent a fuel rich condition by requiring the air flow to increase before fuel flow when the load is rising and fuel flow to decrease before air flow when the load is...
  2. GarethJones

    Orimulsion

    A number of trial burns of Orimulsion have been carried out in the UK. A few years ago there was a proposal to convert Pembroke power staion to Orimulsion firing but this fell through and the station has since been closed. Orimulsion suffers from a number of problems, both from an operational...
  3. GarethJones

    Mean specific heat of flue gas

    Calculation of dry flue gas loss to the procedures of ASME PTC 4.1 requires the calculation of the mean specific heat of the flue gas between the reference temperature and the final gas temperature. Values of the instantaneous specific heat at these two temperatures are obtained from a...
  4. GarethJones

    Data on NO/NO2 levels

    I am searching for publications or data that gives information in the relative levels of NO and NO2 in flue gases from coal fired boilers. Does anyone have any ideas where this might be found?
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