Wednesday, October 20, 2010

TCR Arabia receives a Purchase Order from SWCC for Condition Assessment

TCR Arabia has received a purchase order from SWCC for Condition Assessment of Main Steam Piping.  This job is scheduled to start on the 9th October, 2010. TCR is also undertaking the scaffolding and insulation works upon recommendation from SWCC.  This order is based on the

repair order No. 0680 dated 08/02/1431H regarding rehabilitation and refurbishment of Main steam pipe – phase 1 – Jubail Station.

Thursday, October 14, 2010

TCR Engineering Consulting (UAE) completes shutdown for Sasol in South Africa

TCR Engineering Consulting FZC (UAE) assisted Raysonics Pty at the Sasol Secunda CTL plant Shutdown in August-September 2010.

Team RT

Sasol (NYSE: SSL) is a multinational gas and oil company based in South Africa that produces a wide array of chemical and liquid fuels. Sasol specializes in gas-to-liquid (GTL) and coal-to-liquid (CTL) technologies, which convert natural gas and coal to diesel and other liquid fuels, and it is the largest producer of motor fuels from coal worldwide.

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The company operates the world's only commercial coal-based manufacturing facility at its Secunda (about 140km from Johannesburg) plant in South Africa. The Synfuels division produces liquid fuel, ammonia, chemical feedstock, sulfur, electricity, and steam. Sasol Secunda CTL is a synthetic fuel plant that uses coal liquefaction to produce petroleum-like synthetic crude oil from coal. It is the largest coal liquefaction plant in the world.

sasol 2 (2)

TCR provided QA/QC Inspection Engineers and NDT Level II qualified Radiography Technicians. The qualified personal team was led by Mr. Ravikiran Choudhari. The shutdown undertaken was one of biggest shutdown at the Sasol plant. The TCR team of QA/QC inspection engineers and RT technicians undertook various tasks such as inspection of static equipments, tanks, vessels, pipelines, columns by using Visual Examination, Welding Survey, Conventional and Advanced Non Destructive Testing and Radiography. The total duration of this shutdown was 4 weeks.

Certificate

Sasol has given appreciation letters to the team members from TCR on successful completion of this project.

TCR Engineering Consulting FZC (UAE) and its partners, TCR Engineering in India, TCR Kuwait and TCR Arabia (KSA) have undertaken various shutdown assignments all over the world.

Monday, October 04, 2010

TCR Advanced completes Eddy Current Project for Essar in India

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TCR Advanced carried out  Eddy Current Testing services for Essar Power (India) ltd., Salaya project – Jamnagar. Eddy Current Testing (ECT) is an electromagnetic NDT technique widely used in Power Plants (Nuclear, Thermal, Gas Turbine), Petrochemical, Refineries and other Industries where tubular Heat Exchangers, Coolers, Condensers are provided. 

The assignment at EPIL – Jamnagar was testing of condenser tubes 0.5mm and 0.7mm thick x 25mm OD x 11820mm long. MOC of the same is Titanium. The inspection was pre-service inspection and was intended to find out surface / subsurface defects on OD & ID.

The above test is not a volumetric technique.  This is a surface technique and can readily detect very shallow surface defects (fatigue crack, inter-granular stress corrosion cracks etc), sub surface defects (inclusions, voids etc.) within a depth of say 6 mm.  It can also identify pitting, cracking, microbiological induced corrosion damage, support wear, erosion etc.  and hence is very widely used as an important tool of in-service inspection of heat exchangers.

This Non destructive testing using a multi frequency Eddy Current system would examine surface and sub-surface areas of materials with suitable electrical conductive and magnetic properties. The instrument used allows Inspection of a large variety of materials and provides documentation of the inspection all in one unit. 

Features of testing machine

Ø Capable of Multi Frequency Testing.

Ø Capable of performing multi channel (4 channels) data acquisition in differential as well as absolute mode.

Ø Phase angle rotation for signal is adjustable from 0 to 360 degrees with angle increments of minimum 1 degree.

Ø Signal amplitude magnification is adjustable through gain control.

Ø The system has three automatic mixtures, which can be used real-time as well as post-acquisition for suppressing two variables simultaneously. Eg. For cancellation of tube support plate (TSP) or Baffle plate signal.

Ø Interactive display screens with several combination of strip-chart displays, vector displays and Zoomed strip-chart displays are available.

Ø Signals are automatically analyzed based on calibration curves.

Ø Sampling rate is very high which facilitates high-speed inspection of about 5 meters per second however the testing speed depends upon the sensitivity required.

Our Engineers are well trained in carrying out the test at Site and interpret the results accurately, depicting the actual condition of the tubes based on the test results, particularly very competent in resolving between defects and non-relevant indications.  The job was carried out by Level II qualified engineers. Around 2000 tubes were tested in 3 days.

Benefits of Eddy Current Testing:

v Avoid unnecessary shutdown due to tube leakage.

v Helps in planning/procurement of tubes/retubing activity

v Big cost saving

v Improved plant availability