|PRAMOD SHANKAR MYAKAL |
AGM Techno consultants, India, Joined Jan 2003, 22
Need information on AE
To all NDT intellecutals,
This is Pramod Myakal from India, I would like to have a comparative statement between tank floor inspection by MFL and acostic emission of tank bottoms. In the association to the subject I would like to ask the following questions :-
Up to what extent MFL method be replace by Acostic Emission for tank bottoms? why?
What are the adv. and disadv. of using AE for tank bottoms, by keeping in view MFL inspection.
Please send me your kind suggestios for firstname.lastname@example.org
|John O'Brien IRC |
Chevron ETC , USA, Joined Jan 2000, 278
Re: Need information on AE The question needs to re phrased as AE Condition Assessment of Tank Floors and MFL Floorscanning are not directly competing technologies. They are correct technologies to use during different phases of the life cycle of an AST.
When you have removed an AST from service and spent considerable sums on cleaning and preparing for inspection an MFL Floorscan (or similar) should be conducted to define remining thickness and identify areas for repair.
The AE technique is an on-line Condition Assessment of the tankfloor before the decision is made to remove the tank from service. In this manner tanks can be assessed and screened and only tanks which need to be shut down are taken out of service. This can result in substantial cost savings to a tank operator as results with numerous operators around the world have shown that statistically only 40-50% of tanks removed from service on a 10 year interval actual require substantive repairs. The AE test as indicated is conducted when the tank is in service, is non intrusive and therefore does not invlolve tank entry and gives an overview of the whole floor.
The storage tank codes such as API 653 and EEMUA 159 now recognise that other Risk Based techniques (RBI, AE testing) can be used to determine the shutdown interval of an AST rather than relying on fixed interval shutdowns.
The drawback is that you need a qualified an experienced company to perform the AE testing who have independently verified database experience.
For more information you should look at the Shell Netherlands Paper from ECNDT at http://www.ndt.net/article/ecndt98/chemical/095/095.htm
|Azhar Qadri / I . hasan |
Re: Need information on AE Please advise some info on AE and Magnetic tester for AGST, please advise some suppler name for new and second hand
|Jens Forker |
Re: Need information on AE The onliest European manufacturer of AE equipment is
Schaeftlarner Weg 26
We offer systems, sensors, + software suited for tank floor testing.
Contact me for more details.
: Please advise some info on AE and Magnetic tester for AGST, please advise some suppler name for new and second hand
: Azhar Qadri
|Dr.Sotirios J. Vahaviolos |
R & D, -
MISTRAS Group, Inc., USA, Joined Jan 2000, 15
Re: Need information on AE : We are not "The onliest European manufacturer of AE equipment"
: ...BUT the Only company in the world that has done more than 3000
Above Ground Storage Tanks with TANKPAC(tm) worldwide.
: We design and build AE equipment and Software in USA and Europe and soon East Asia,but
like to help in solving AE problems for customers as we have
done that since 1968.Additionally we provide services in
worldwide places having subsidiaries in UK,France,Holland,Russia
: You can find us at www.pacndt.com and would love to hear from you.
: Having a founder deep in Greek roots we love to do business
: ....anywhere in the world and.....Russia is also Europe where we
: we manufacture...as well as 3-other well known suppliers.
: We offer Multiprocessing Parallel AE DSP based systems, sensors, + software suited
for many unique applications like yours.
: : Please advise some info on AE and Magnetic tester for AGST, please advise some suppler name for new and second hand
: : Regards
: : Azhar Qadri
|pramod Myakal |
AGM Techno consultants, India, Joined Jan 2003, 22
Tankfloor inspection sensitivity To, all the concerned
I would like to know under what cercumstances 2mm dia hole will be picked up by mfl system (Tank floor)as an isolated pit opened to hole.
what would be the probe array system that will detect this
Pl send your answars to
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