How does negative pressure develop inside of a well sealed house with a combustion type furnace?
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| Pressure and impulse histories for explosions in air were much greater than those recorded for explosions in nitrogen—thereby demonstrating that combustion has a dramatic effect on the chamber pressure. | |
17 Citations | The numerical results show that the blackout scenario will not have any negative impact on investigated gas part of the boiler system since the observed lowest negative furnace pressure of −36 mbar can be handled with current state of the art technology. |
41 Citations | The pressure also influences the impurity transport in the furnace by modifying the pattern of argon flow. |
| This means that the oxygen concentration is smaller when the furnace pressure is higher rather than lower. | |
38 Citations | This burden control method decreases the in-furnace pressure drop significantly. |
20 Citations | Two main conclusions were drawn with respect to oxidation of the coal in re-opened sealed heating: i) carbon monoxide and unsaturated hydrocarbons maintain their relevance as spontaneous combustion indication gases, however, increased production of both carbon oxides can be expected; ii) coal in the extinguished spontaneous combustion site gains increased susceptibility to the self-heating process. |
| Since the small vortex is stronger when the furnace pressure is higher, the concentration is lower around the central region. | |
| In considering that numerical simulations and industrial scale measurements in published work have confirmed the validity of a previously-proposed deep-air-staging combustion technology in achieving excellent furnace performance within down-fired furnaces, retrofitting the present furnace with the technology is thus recommended if symmetric combustion, good burnout, and low NO x emissions are to be achieved. |
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