Outside Insulation on heater
Outside Insulation on heater
(OP)
Why there is no outside insulation on fired heaters shell/box ? One of my colleague asked me this question and I was wondering why. Can anybody explain ?
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Outside Insulation on heater
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RE: Outside Insulation on heater
sometimes heaters would need high temperature insulation.
Depends on the location and the designer / client
Remember - More details = better answers
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RE: Outside Insulation on heater
RE: Outside Insulation on heater
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Outside Insulation on heater
RE: Outside Insulation on heater
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Outside Insulation on heater
If covered with insulation outside, it may block the inspection of the hot spot from outside as the refractory damaged. As to reduce the surface temperature of the steel, one may increase the refractory thickness as if the cost effective.
RE: Outside Insulation on heater
RE: Outside Insulation on heater
1. Refractory lining thickness inside the fired heater may be increased in order to reduce heat loss through heater wall.
2. Outside insulation of fired heater to reduce heat loss is not recommended because it will lead to increase in metal temperature thereby weakening its strength. Also hot spots due to defective refractory lining can easily be detected on a naked wall while on a insulated wall the same may not detected immediately which in turn may pose a greater safety threat.