Siemens touts gas turbine edge for Thailand

[webfact]

Siemens touts gas turbine edge for Thailand

By JINTANA PANYAARVUDH 
THE NATION

 

Assembly of a gas turbine at Siemens gas turbine plant in Berlin.

 

GERMAN technology powerhouse Siemens is keen on supplying its cutting edge HL-class gas turbine to customers in Thailand to meet the country’s aim of upgrading to high-efficiency energy with low cost.

 

Launched last September, the advanced HL-class gas turbines combine a series of new but tested technologies to enhance the next level of efficiency and performance of combined-cycle power plants. 

 

The HL-class is clearing the way to efficiency levels beyond 63 per cent with a mid-term goal to reach 65 per cent.

Thomas Hagedorn, head of sales for the Asia and Pacific region of the Siemens power and gas division, said Thailand has been always a very significant market and one of the biggest in Southeast Asia for the large gas turbine.

 

 

“As we continue our cooperation, I believe we would be able to offer HL-class as the next project in Thailand. And EGAT (Electricity Generating Authority of Thailand) is our next target. We are ready to supply it anytime,” Hagedorn told The Nation in a recent interview.

 

Siemens has provided four power plant projects for EGAT over the past 10 years: Chana 1, Bang Pakong 5, Chana 2, and Wang Noi 4.

And last year, Siemens with its Japanese consortium partner Marubeni Corporation signed a contract with the state-owned utility for the delivery of a turnkey combined cycle power plant named South Bangkok.

 

Siemens’ new HL-Class turbine

 

Hagedorn said the cutting-edge machine would benefit the country as the gas price in Thailand is quite high, due in part to the need for energy imports.

 

“So, it means you need to have a high-efficiency machine to produce affordable electricity. Also, Thailand has plans to replace older-technology plants with next technology,” said Hagedorn.

Thailand depends heavily on gas, accounting for 70-75 per of the country’s energy base, he said.

In his view, the need to diversify the energy mix is high on the country’s agenda. But whereas coal is the cheapest energy source, its social acceptability is under challenge, said Hagedorn, referring to pollution concerns.

“Looking into the challenges, I believe Thailand will continue to build quite significant capacity in gas-fired power plants,” Hagedorn said.

At a presentation to media from Asean countries at Siemens’ gas turbine plant in Berlin last week, Hagedorn, who has spent almost his whole working life in Asia-Pacific countries, said gas-fired power was very important nowadays.

 

Hence, the new gas turbine is very important because the higher efficiency, the more electricity produced and the less carbon dioxide emitted, he said.

 

The new HL-class represents an evolutionary development step derived from its proven SGT-8000H technology, said Hagedorn, citing its achievement of greater than 63 per cent efficiency with the mid-term goal to reach 65 per cent.

 

Thomas Hagedorn

 

The development of the new class took five years, just half that for the H class, due to the advances in technology and digitalisation that Siemens used in its business operation, Hagedorn said.

 

Kolja Schwarz, head of HL-class portfolio management, said that Siemens' specialists developed advanced combustion technologies, innovative multi-layer coatings and improved internal cooling features, as well as an enhanced water-steam cycle that enables the turbines to operate at high-combustion temperatures to achieve optimal performance. 

 

Optimised sealings also minimise air leakage and cooling.

 

At the same time, evolutionary 3D-blading is enabling higher aero-efficiency for the compressor. Predefined and prefabricated solution elements as well as pre-selected vendors and products allow a significantly reduced construction time and a fast start for projects.

 

He said the new turbines can be integrated into Siemens’ digital portfolio for plant operators and utilities, including connectivity to MindSphere, the cloud-based operating system for the Internet of Things.

 

 

MindSphere offers access to powerful analytics from Siemens and its partners, using intuitive insights in engine operation and decision support to deliver benefits to customers.

 

All other additional digital services provided in the new class are aimed at avoiding failure, Schwarz said.

 

For example, if you know the condition of an engine and are aware of the possible risks to its performance, you will be able to step in by changing its operation mode to avoid failure, he said.

 

The company has a four-year timefame to test and validate the technologies of the HL class at Duke Energy's Lincoln County site in North Carolina, in the United States.

 

“It’s a unique opportunity for us to test under real conditions at a customer site,” Schwarz said.

 

Source: http://www.nationmultimedia.com/detail/business/30344800

 

-- © Copyright The Nation 2018-05-08

[ksamuiguy]

Not for a long time, Thailand need Engineers, but no one wants to attend that tough curriculum. So Farangs will be needed to  design, install and maintain these plants into the future and beyond if the past is any indication.

 

Gas should be plentiful The gas line from  Burma has a lot. Thailand pays for but never uses! 

 

Gas Turbine power plants in Thailand, how many Farangs are needed to keep these plants running I wonder!

 

 

 

[Cadbury]

4 hours ago, webfact said:

"......combined-cycle power plants".

Thailand 4.0

 

Edited May 8, 2018 by Cadbury

[Darcula]

How much to lay down the inlet pipe connection from government house?

[Srikcir]

Great technology for producing highly efficient generation and low CO2 emissions that would advance Prayut's UN commitment to reducing greenhouse gases (GHG).

But it seems that as NG is more expensive than coal, Prayut as per Egat's DPD2015 plan will be reducing NG electrical generation and increasing coal electrical generation with seven new plants planned. And as a consequence the government will increase Thailand's GHG between 2015 and 2036.

But there may be good news.

Germany recently granted Bt690 million for a four-year climate change program intended to help Thailand achieve its goal of reducing greenhouse gas emissions and adapting to climate change.

http://www.nationmultimedia.com/detail/national/30344399

If the Thai government chose to incorporate this grant into changing its DPD2015 Plan by replacing some of its planned coal generation with NG generation technology such as proposed by Siemens, it could project lower GHG.

[Blackheart1916]

3 hours ago, ksamuiguy said:

Not for a long time, Thailand need Engineers, but no one wants to attend that tough curriculum. So Farangs will be needed to  design, install and maintain these plants into the future and beyond if the past is any indication.

 

Gas should be plentiful The gas line from  Burma has a lot. Thailand pays for but never uses! 

 

Gas Turbine power plants in Thailand, how many Farangs are needed to keep these plants running I wonder!

 

 

 

With the inbuilt controls and protection, not many. Continuous monitoring will automatically shutdown plant on alarm, rebuilds would be done by gas turbine specialist contracting companies, Siemens or others. Not many people required to run a modern gas power plant. A few people for routine maintenance, changing filters etc, and a couple of brains to run it.

[canopus1969]

Should choose RR - they pay better  

[Bredbury Blue]

The 4 completed projects mentioned were by Siemens-Marubeni consortium. The 5th consortium project, South Bangkok in Samut Prakarn (on chaophya river), is in the erection phase for completion in 2019.

[overherebc]

Might seem a small point to some but gas turbines exhaust is almost invisible with the result that it fries many birds that fly into it, I've seen the results and the numbers can be large on a daily basis.

They should intoduce some kind of spray to the exhaust plume to at least give the birds a chance.

[Srikcir]

3 minutes ago, overherebc said:

Might seem a small point to some

Indeed it may be a very small point.

Gas turbine power plants typically recycle exhaust gases through a Regenerator before any exhaust is wasted to the atmosphere. http://www.electricalengineeringinfo.com/2014/12/gas-turbine-power-plant-or-gas-power-station-layout.html

As a result the flue gas outlet temperature could be reduced to below 25ºC.

https://ac.els-cdn.com/S1877705816308359/1-s2.0-S1877705816308359-main.pdf?_tid=4a7fb931-4dd3-42fd-a7c4-5d5294120837&acdnat=1525936763_b55a1b8dc754b7636f2975d35040b726

 

[overherebc]

35 minutes ago, Srikcir said:

Indeed it may be a very small point.

Gas turbine power plants typically recycle exhaust gases through a Regenerator before any exhaust is wasted to the atmosphere. http://www.electricalengineeringinfo.com/2014/12/gas-turbine-power-plant-or-gas-power-station-layout.html

As a result the flue gas outlet temperature could be reduced to below 25ºC.

https://ac.els-cdn.com/S1877705816308359/1-s2.0-S1877705816308359-main.pdf?_tid=4a7fb931-4dd3-42fd-a7c4-5d5294120837&acdnat=1525936763_b55a1b8dc754b7636f2975d35040b726

 

HRSG's I've worked on were killing dozens a day.

[Bredbury Blue]

6 hours ago, overherebc said:

HRSG's I've worked on were killing dozens a day.

How does that happen? I thought the hot exhaust gas from the gas turbine pass through the diffuser in to the heat recovery steam generator (HRSG).

 

 

 

 

Edited May 10, 2018 by Bredbury Blue

[Srikcir]

6 hours ago, overherebc said:

HRSG's I've worked on were killing dozens a day.

Maybe the cause wasn't hot gases if the HRSG is working correctly but rather an oxygen deprived exhaust bubble before it dispersed.

[overherebc]

45 minutes ago, Srikcir said:

Maybe the cause wasn't hot gases if the HRSG is working correctly but rather an oxygen deprived exhaust bubble before it dispersed.

An HRSG can work two ways. The turbine is linked to a generator to produce electricity and the hot gases from the exhaust can go two ways using a gate system ( big flap ) In one position with the gate open the hot gas is directed into a boiler system to produce high pressure steam that turns a turbine connected to a generator. Where the red checked are is on the diagram.

With the gate to the boiler system closed the exhaust hot gases are directed to atmosphere through a stack, by pass, in this position extremely hot clear exhaust will roast anything flying through it.

 

Under certain conditions and depending on the turbine the exhaust gases can be anywhere between 500 to 2000' F

Edited May 10, 2018 by overherebc