athomas236
Mechanical
- Jul 1, 2002
- 607
I am involved in a project with some new 500tonne/hour oil-fired boilers that were designed to the thermal performance standards of an Eastern Block country.
The boilers are not performing as expected and it seems that the reasons for this may be that the furnace performance is not as expected. The supplier is claiming that the fuel oil burned in the boilers is showing different combustion characteristics to those of oils burned on his other projects. These characteristics being less intense combustion with the consequence that the flame is higher in the furnace than expected giving furnace exit temperatures higher than expected.
I think the supplier may be partly right because we have low NOx burners which could result in combustion characteristics different to those of conventional burners which could well be the basis of the thermal performance standards used.
So this is my question. Is there any evidence that suggests that using low NOx burners will give furnace exit gas temperatures that are different to those with conventional burners.
Regards,
athomas236
The boilers are not performing as expected and it seems that the reasons for this may be that the furnace performance is not as expected. The supplier is claiming that the fuel oil burned in the boilers is showing different combustion characteristics to those of oils burned on his other projects. These characteristics being less intense combustion with the consequence that the flame is higher in the furnace than expected giving furnace exit temperatures higher than expected.
I think the supplier may be partly right because we have low NOx burners which could result in combustion characteristics different to those of conventional burners which could well be the basis of the thermal performance standards used.
So this is my question. Is there any evidence that suggests that using low NOx burners will give furnace exit gas temperatures that are different to those with conventional burners.
Regards,
athomas236