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located at LNG Train 4 site |
The following three exhaust stacks are part of the North West Shelf Gas Project, LNG Train 4 Project for Woodside Energy, located at Karratha, Western Australia. The project is the sole supplier to China's first LNG project in Guangdon Province and, under a AU$25 billion deal, the venture will supply 3 Mt/a of LNG for 25 years to the Guangdon LNG Terminal and Trunk Line Project.
Exhaust stack 4A-1410 is installed on the exhaust of the mixed refrigerant compressor gas turbine drive unit (compressor and turbine drive are manufactured by Nuovo Pignone)
Exhaust Stacks A-4007 and A-4008 (identical in appearance and operation) were installed on the exhaust of the propane and mixed refrigerant compressors drive units (compressors and turbine drives are manufactured by Nuovo Pignone).
The project consisted of the design, engineering, manufacture and inspection of the Gas Turbine Exhaust Stacks: 4A-1410, A-4007 and A-4008.
General Description
Gas Turbine Exhaust Stack: 4A-1410
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Lower Section |
The Exhaust Stack 4A-1410 is a refractory lined steel stack, which is connected to the exhaust of a compressor gas turbine drive unit having an exhaust temperature of approximately 535oC. The Exhaust Stack consists of three components, an upper and lower section and an inlet duct.
The Exhaust Stack has an outside diameter of 6.29m and a height of 40.11m above ground. The Stack is also supplied with access ladders, stairways, platforms and personnel protection heat shields with shell temperatures of approximately 120oC. The total installed mass of this unit is approximately 404 tonnes.
Gas Turbine Exhaust Stack: A-4007 & A-4008
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located at LNG Train 4 site |
The Gas Turbine Exhaust Stacks A-4007 & A-4008 are refractory lined steel stacks, which are connected to the exhaust of a gas turbine generating power where it will experience high temperatures. The Exhaust Stacks both consist of two components an upper and lower section with inlet duct attached.
The Exhaust Stacks have an outside diameter of 3.732m and a height of 40.11m above ground. The stacks are also supplied with access ladders, stairways, platforms and personnel protection heat shields. The total installed mass of each stack is approximately 148 tonnes.
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transported to sea Port |
Method of Construction & Transport
A novel feature of the construction programme was the off site installation and curing of hard refractory prior to transport. The fabrication and refractory installation was carried out at Kwinana, W.A. The sections of stack and transitions were then trucked a short distance to the Port before loading onto an ocean going barge for shipping to Burrup Peninsula.
