Steam and Gas Turbines Information Steam turbines and gas turbines are rotating machines that extract energy from pressurized steam and/or from combustion gases. Types of Steam and Gas Turbines There are two basic types of steam turbines: impulse and reaction. Impulse turbines are used for smaller power-generation applications. Reaction turbines are used for industrial-scale power generation. Different types of gas turbines are also available. Examples include combined-cycle gas turbines and...
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Q & A on Steam and Gas Turbines

We asked our users for their input on Steam and Gas Turbines. Here are the results of 85 users familiar with Steam and Gas Turbines.

Who Took Our Poll? | Design Trends | Applications and Use | Features | Buying Advice |

Who Took Our Poll?Top

Design TrendsTop

Q:
What new technologies are influencing steam turbine and gas turbine design?
14 answers
Answers:
1. energy conservation technology as in combined systems-- gas and steam turbines 2. renewable and environment-safe sources of energy 3. new engineering materials for blades and blading
~Amaechi Chizota, Head/technical director hamkadish mission/farm settlement, Onitsha, Nigeria
Special materials for blade fabrication Thick walled boilers Steam path technologies Through flow designs for steam turbines FEA methods for stress analysis of blades/roots
~Bishansingh B, Marketing/Sales, Mumbai, India
Directly coupling the turbine to the alternator is followed in China. HTC is one of the manufacturers which is following it.
~Engineering, Design, Pune, India
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Q:
From your perspective, which companies are creating the most innovative steam turbines and gas turbines?
18 answers
Answers:
Elliott released a completely new turbine design 2nd quarter 2011 and MHI for gas turbines.
~Eric B, General Corporate Mgmt, Pittsburgh, PA
In general the Germans' companies, and GE in Canada and USA.
~Joseph Vergara, General Management, Bancroft, Canada
Gas turbines: Solar Steam turbines: Dresser Rand
~Engineering, Consulting, Temperance, MI
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Applications and UseTop

Q:
Please share with us any “non-standard” applications that steam turbines and gas turbines have been used for.
4 answers
Answers:
I hope to adopt steam turbines as a core-product component in our soon coming energy and power systems installation.
~Amaechi Chizota, Head/technical director hamkadish mission/farm settlement, Onitsha, Nigeria
Binary turbines using different motive fluid versus Steam and Geothermal.
~Eric B, General Corporate Mgmt, Pittsburgh, PA
Heat & power station
~RAJAMANICKAM S, Engineering Consultant, TRICHY-14, INDAI
Control v/v
~Maintenance/Facilities Management, Mumbai, India

Q:
What steam turbines and gas turbines have you used?
25 answers
Answers:
Backpressure type, Extraction Condensing, Bleed Backpressure, Double extraction condensing. Extraction Backpressure etc. of Reaction, Impulse & Impulse, reaction types.
~Engineering, Design, Pune, India
Direct drive steam turbine on a live steam 1.5 scale Penny's steam turbine locomotive; it is a hobby but not at all easy as turbines do not reduce and work well.
~Engineering, Consulting, Downers Grove, IL
TK 200 and others from our factory in Poland ( Zamech Ltd ) in past time ABB and now is Alstom. Skoda.
~Engineering, Other, Warsaw, Poland
Elliott, Dresser, Terry, Coppus, Westinghouse, Worthington, GE, Siemens, Mitsubishi, single and multistage.
~Eric B, General Corporate Mgmt, Pittsburgh, PA
We have 3 turbines from LMZ Russia of 55 MW each installed in 1980. Model is K-50-90/4.
~General Corporate Mgmt, Karachi, Pakistan
Gas turbines for aircraft engines. Steam turbines for power generation.
~Engineering, Consulting, Baden, Switzerland
GE, Elliott, Copus, Ingersall Rand, Allis Chalmers, Toshiba and others.
~Alfred S, Engineering Consultant, Peace River, Canada
GE and Murray steam turbines. Solar and Allison gas turbines.
~Engineering, Consulting, Temperance, MI
Fr-5,Fr-6,Fr-6fa,Fr-9fa and a collection of a steam turbines
~Manufacturing, Hyderabad, India
GEC Parsons Toshiba Ruston Peter Brotherhood
~Engineering, Consulting, Ashford, Great Britain
Power generation and pumps compressors driver.
~Maintenance/Facilities Management, Al ruwais, United Arab Emirates
Oil and gas turbines GE frame 6,7,& 9
~Technical Support/Services, Mussafah, United Arab Emirates
Condensing and back pressure turbine
~Maintenance/Facilities Management, Bangalore, India
Cryogenic gas bearing turbine
~Engineering, Process/Production, Baghdad, Iraq
Tangential flow turbines
~Abubakar A, Engineer, Abuja, Nigeria
Single stage axial mode
~Research & Development, Bandung, Indonesia
Impulse steam turbines
~Bishansingh B, Marketing/Sales, Mumbai, India
GE F9 , Siemens V94.2
~Medi P, Project Manager, Melbourne, Australia
Single turbine steam
~Eric D, Project Manager, Oostende, Belgium
BHEL steam turbine
~Maintenance/Facilities Management, Mumbai, India
210 MW KWU make
~Technical Support/Services, Nagpur, India
Team turbines
~Joseph Vergara, General Management, Bancroft, Canada
30 -1000 mw
~RAJAMANICKAM S, Engineering Consultant, TRICHY-14, INDAI
Thermodyne
~Engineering, Process/Production, Reduit, Mauritius
GE
~Engineering, Consulting, 2800 Lyngby, Denmark

Q:
Do you know of any disastrous mistakes that occurred due to the incorrect usage of steam turbines and gas turbines?
5 answers
Answers:
Maintenance planning and execution are critical for turbine operation success.
~Eric B, General Corporate Mgmt, Pittsburgh, PA
Debris left in the casing or piping during construction or turn around.
~Alfred S, Engineering Consultant, Peace River, Canada
Lack of predictive maintenance caused turbine failures.
~Bishansingh B, Marketing/Sales, Mumbai, India
Yes, like nuclear turbines in Japan & Russia.
~RAJAMANICKAM S, Engineering Consultant, TRICHY-14, INDAI
None yet as a matter of personal experience.
~Amaechi Chizota, Head/technical director hamkadish mission/farm settlement, Onitsha, Nigeria

FeaturesTop

Q:
What would your design or feature "wish list" be for these products?
8 answers
Answers:
Advanced steam path design redesigns are advances in metallurgy and reduced stresses to address the potential for SCC (stress corrosion cracking). Potential integration of CCS (carbon capture and sequestration) into the STG thermal cycle torsional vibration analysis.
~Bishansingh B, Marketing/Sales, Mumbai, India
Reduced turbines sizes for homes estates and small scale industries Turbines with useful power output yet affordable to students and hobbyists
~Amaechi Chizota, Head/technical director hamkadish mission/farm settlement, Onitsha, Nigeria
Highest efficiency; realistic cost for the 'mid range' turbines that are currently too expensive.
~Eric D, Project Manager, Oostende, Belgium
1. High pressure ratio (more than 300 gt) 2. USC stem turbines 700 deg c & 350 bar
~RAJAMANICKAM S, Engineering Consultant, TRICHY-14, INDAI
Small(compact), rugged, not requiring too many electronics controls.
~Abubakar A, Engineer, Abuja, Nigeria
Any item increasing customer efficiency and reliability
~Eric B, General Corporate Mgmt, Pittsburgh, PA
Cooling of turbine and vacuum
~Maintenance/Facilities Management, Mumbai, India
Spare part
~Medi P, Project Manager, Melbourne, Australia

Buying AdviceTop

Q:
Do you have any advice for people relative to buying or using steam turbines and gas turbines?
5 answers
Answers:
Reaction machines are not as reliable due to lighter construction, high potential for wear/leakage and loss of efficiency translating into much higher life cycle costs.
~Eric B, General Corporate Mgmt, Pittsburgh, PA
Please carry out rigorous predictive maintenance programs for the power plant: - oil analysis - vibrations - ultrasound analysis
~Bishansingh B, Marketing/Sales, Mumbai, India
Plan well, compare different vendors.
~Eric D, Project Manager, Oostende, Belgium
They should go for Chinese products.
~RAJAMANICKAM S, Engineering Consultant, TRICHY-14, INDAI
BHEL make
~Maintenance/Facilities Management, Mumbai, India

Q:
Is there any advice you want to share with users to help them avoid common errors in selection or usage of steam turbines and gas turbines?
6 answers
Answers:
Heavier duty machines, pound for pound, are a better capital investment even if they are slightly higher than lighter machines. They last longer, are able to be repaired, instead of replaced, and typically can accept future load changes or modifications at a much lower cost.
~Eric B, General Corporate Mgmt, Pittsburgh, PA
Select the turbine for maximum longevity in subversive extreme conditions, with site visits & direct feed back from existing users.
~Bishansingh B, Marketing/Sales, Mumbai, India
Need more selection on low capacity for example -3MW - 5or 6 MW. Low pressure.
~Joseph Vergara, General Management, Bancroft, Canada
Select a unit that is designed for 20% above the required capacity.
~Alfred S, Engineering Consultant, Peace River, Canada
Good companies like GE, Alstom, Siemens, MHI supported designs.
~RAJAMANICKAM S, Engineering Consultant, TRICHY-14, INDAI
BFP
~Maintenance/Facilities Management, Mumbai, India

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