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heat transfer on the tubescan causetube failure
friction ... more heat ,can causetube failure
Heat buildupcontributesto tube failure
Italso ... boiler depositscan causetube failure
a variety of factors(passive) caused bytube failures
Many factorscan causetube failure
uneven heat transfercould causetube failures.•
the extreme heat and frictioncausedtube failure
If the governing heat fluxpreventstube failure
Often , iron oxide will deposit and retard heat transfer within a boiler tubesometimes resultingin tube failure
the housing ... high kinetic energy and the localised heating of the housingcan leadto tube failure
under - deposit corrosionleadingto tube failure
removing the sludge accumulationcausestube failure
local overheating under the scale(passive) caused bytube failure
a water system ... boiler depositscan causetube failure
Corrosion that occurs below the boiler depositsleadsto tube failure
the quality ... the cooling liquidcan leadto tube failure
local hot spots in the tube wallleadingto tube failure
not to over - expand the tubescan leadto tube failure
the furnace tubesresultingin tube failure
4 ) 05/09/2007 Q : In a Crude distillation unit using hot reflux and with a two stage desalter , repeated corrosion has been found in the Crude / Overhead vapor exchangerleadingto tube failure
A heat exchanger tube is pluggedto preventtube failure
S&T heat exchangers ... the shell sidecould resultin tube failure
The purpose of a high steam temperature ... superheated steamcould causetube failure
fluid elastic instability during blowdown(passive) caused bytube failures
cause hot spotseventually leadingto tube failure
failure mechanisms Factorsinfluencingtube failures
the main cause of failure due to A well planned and executed boiler chemistry control program ... essentialto preventtube failure
fatigue and erosion(passive) may be caused byTube failure
corrosion ... depositscan ... createtube failure
The integrity of the tubes is weakenedcan leadto tube failure
Scaling of boiler tubescan leadto tube failure
a power outage during June 2018(passive) caused bytube failures
Iron deposits will form in the high heat flux areas of the boilercausingtube failures
overheating of the filamentresultedin tube failure
oxygen pitting(passive) caused bytube failure
overheating , over - pressure or external erosion(passive) caused bytube failures
A very thin scalecan causetube failure
the resulting high temperature of the tube wallmay causetube failure
the tube wall temperatures to rise significantlyresultingin tube failure
most oftenleadmost often
temporary shutdown of the power plant , assessment of the tubescausestemporary shutdown of the power plant , assessment of the tubes
in nuclear contamination of the secondary loop ... by way of examplemight resultin nuclear contamination of the secondary loop ... by way of example
due to flow induced vibration the maincauseddue to flow induced vibration the main
tire damagecausingtire damage
from O.D. erosion Damageresultingfrom O.D. erosion Damage
damage to your equipmentcausesdamage to your equipment
a forced outage , usually at the most inopportune timemay causea forced outage , usually at the most inopportune time
to the plant shut - down and tubes repair and replacement and welding andleadingto the plant shut - down and tubes repair and replacement and welding and
any major internal damage(passive) caused byany major internal damage
damage to bias / balancing circuitrycan causedamage to bias / balancing circuitry
from hydrogen damage or internal corrosion gouging Proper sample orientation and preparationresultedfrom hydrogen damage or internal corrosion gouging Proper sample orientation and preparation
a forced outage , usually at the most inappropriate time , resulting lost production and lost revenuemay causea forced outage , usually at the most inappropriate time , resulting lost production and lost revenue
to damage in other unit equipment as contaminants enter the condensatecan ... leadto damage in other unit equipment as contaminants enter the condensate
a short in the tube which can make the tube look like a short to ground for the output transformer ... shorting the output transformer primary can arc and melt the insulating varnish , thus ruining the transformercan causea short in the tube which can make the tube look like a short to ground for the output transformer ... shorting the output transformer primary can arc and melt the insulating varnish , thus ruining the transformer
from a fatigue failure ... with no corresponding cascading impact on surrounding tubesresultedfrom a fatigue failure ... with no corresponding cascading impact on surrounding tubes
ampscan causeamps
By far(passive) are caused byBy far
to reactor core meltdown if plant is reactivated as iscould leadto reactor core meltdown if plant is reactivated as is
the failures of the tubes nearby and those failures would have caused the failure of many others near by , which together could have resulted in the loss of highly radioactive reactor core coolant , which is what caused the meltdowns in Fukushimacould have causedthe failures of the tubes nearby and those failures would have caused the failure of many others near by , which together could have resulted in the loss of highly radioactive reactor core coolant , which is what caused the meltdowns in Fukushima
that approximately 85 % of Essex boilers unscheduled(passive) is caused bythat approximately 85 % of Essex boilers unscheduled
from progressive deterioration from a variety of deterioration mechanismsresultfrom progressive deterioration from a variety of deterioration mechanisms
in an increase in replacement power costscan also resultin an increase in replacement power costs
other component failure in the amp as wellcan ... causeother component failure in the amp as well
sometimescan ... causesometimes
environmental pollution(passive) caused byenvironmental pollution
no more blowouts(passive) caused byno more blowouts
in excessive current draw , fuse failure , and the need for new tube(s ) and a fuseresultsin excessive current draw , fuse failure , and the need for new tube(s ) and a fuse
to a complete unit failureleadsto a complete unit failure
nearly 80 per cent of the failures that occur in radar equipment(passive) are caused bynearly 80 per cent of the failures that occur in radar equipment
in extensive floodingcould resultin extensive flooding
from loading cold crucibles and samples into hot ceramic tubesresultingfrom loading cold crucibles and samples into hot ceramic tubes
to anothercan leadto another
emergency breakdowns of entire itemsmay causeemergency breakdowns of entire items
mixture of heating medium and potable waterto preventmixture of heating medium and potable water
a recent customer shutdown(passive) caused bya recent customer shutdown
in very costly repairs and personal injury or deathresultingin very costly repairs and personal injury or death
while increasing outages(passive) caused bywhile increasing outages
from wear due to the fly ash in the flue gasresultingfrom wear due to the fly ash in the flue gas
alsocan ... causealso