Fire blaze in Indian Oil Corporation depot
{ Posted on Oct 30 2009 by rutambhara }
A depot of Indian Oil Corporation at Jaipur got hold of fire in thursday evening due to a leakage in one of the valve which set ablaze more than five tanks of kerosene, diesel and petrol under its control.Even after 24 hours ,the fire couldn’t be brought under control.
Petroleum minister Murli Deora rushed into the place after getting the news , said that there is no other solution to calm down the fire, the fire has to die of its own.There is nothing else one can do.There is no other alternative to the situation.
The fire has engulfed six personnels in its black smoke.150 persons has been injured in this incident.The fire will take 24 more hours to stop.
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The intense heat from burning liquid hydrocarbon prevents manual operations to control the fire. In such installations, the emergency shutdown and control vales should be Remote Actuated so that the valves can be operated from a control room located in safe location. The remote Actuators should be capable of surviving the fire engulfment for minimum 15 to 30 minutes in line with API 607.
Also in a tank farm the the storage tanks are installed in a cluster. In the event of fire in one tank, the liquid fuel burns with flames as high as 50 to 100 feet tall. These flames radiate heat on the other tanks in the cluster and preheats the stored contents to a level nearing the self ignition temperature of the stored contents. The preheated combustible contents are preheated and ready to catch fire facilitating a rapid spread. To prevent the radiation of heat from one tank to the next, inbtween the tanks the heat radiation has to be prevented (blocked) by erecting heat shields. As a precaution against spread of fire, such heatshields in the form of 18 to 20 metres high water curtains can be installed at suitable locations. The hydrocarbon fels burn only on the top surface and the remaining deppth in the tanks, comparatively ramains cool and safe. The blockage of radiant heat will allow more time for transferring the cool contents to a safer storage area through the Remote Operated Control Valves, designed to survive the fire temperatures above 760 degC. Such water curtains can be designed to match the volumetric storage capacity of the storage tanks.
COMMENTOR
Suresh Gupta ( Tel 011 29218287, Mob> 09811023599<> .
Suresh, You have got an awesome knowledge in this matter.I guess you are a mechanical engineer.
Mr. Rutambhara: I have read your comments. Your comments are only a personal critisism and do not throw any light on remedial measures. If you have better knowledge please give some constructive and knowledgeable comments. My contact details are already in my comments, whereas you have left no contact details. I am keen to learn more and shall thank you for your guidance, if any. I am fully aware of what I have written and standby with these. Please analyse and catagorically comment as to what is wrong with the suggestions made by me, if you have better,if any. Probably you are more in favour of the comments of Our honorable minister “” NOTHING CAN BE DONE TO CONTROL THE FIRE LET IT BURN ITS OWN LIFE”" RIGHT MR. RUTAMBHARA??? . .
I appreciate ur comment..I am just in dilemma what can be done…mail me mishra.ruth@gmail.com