Steam Turbine Flow Path Seals (a Review)

2018 ◽  
Vol 65 (3) ◽  
pp. 125-135 ◽  
Author(s):  
V. M. Neuimin
Keyword(s):  
Steam Turbine ◽  
Flow Path ◽  
Turbine Flow Path

scholarly journals Efficiency calculation on 10 MW experimental steam turbine

2018 ◽  
Vol 168 ◽  
pp. 06001
Author(s):  
Michal Hoznedl
Keyword(s):  
Steam Turbine ◽  
Flow Measurement ◽  
Flow Parameter ◽  
Flow Path ◽  
Measuring System ◽  
Parameter Distribution ◽  
Efficiency Evaluation ◽  
Path Efficiency ◽  
Efficiency Determination ◽  
Turbine Flow Path

The paper deals with defining flow path efficiency of an experimental steam turbine by using measurement of flow, torque, pressures and temperatures. The configuration of the steam turbine flow path is briefly described. Measuring points and devices are defined. The paper indicates the advantages as well as disadvantages of flow path efficiency measurement using enthalpy and torque on the shaft. The efficiency evaluation by the help pressure and temperature measurement is influenced by flow parameter distribution and can provide different values of flow path efficiency. The efficiency determination by using of torque and mass flow measurement is more accurate and it is recommended for using. The disadvantage is relatively very complicated and expensive measuring system.

Combining Diagnosis Methods for the Fouling on Flow Path of Steam Turbine

2012 ◽  
Vol 516-517 ◽  
pp. 577-584
Author(s):  
Tao Yang ◽  
Jian Qun Xu ◽  
Ling Li ◽  
Ke Yi Zhou ◽  
Yong Feng Shi
Keyword(s):  
Quantitative Analysis ◽  
Qualitative Analysis ◽  
Steam Turbine ◽  
Flow Path ◽  
Thermal Parameters ◽  
Actual System ◽  
Flow Area ◽  
Multiple Faults ◽  
Specific Location ◽  
Diagnosis Model

The fouling on flow path of steam turbine would lead to the changes of thermal parameters and significantly deteriorated efficiency. In this paper, a qualitative analysis of fouling on flow path based on measured parameters was described for the preliminary diagnosis, and the zooming thermoeconomic diagnosis model combined with the equivalent flow area diagnosis model was proposed to diagnose the specific location of fault. Then the flow performance of a 630 MW supercritical unit was analyzed, and the possible fouling stages were also discussed according to the thermoeconomic diagnosis and quantitative analysis. The result of diagnosis was consistent with the situation of uncovering cylinder, which indicated that though the actual system was complex, the coupling multiple faults of flow path could be diagnosed by combining the above diagnosis models.

scholarly journals Direct Coal-Fueled Combustion Turbines

1987 ◽  
Author(s):  
Richard A. Wenglarz
Keyword(s):  
Residence Time ◽  
Flow Path ◽  
Past Experience ◽  
Short Residence Time ◽  
Combustion Emissions ◽  
Turbine Flow Path

Technology requirements for direct coal-fueled turbine systems are discussed. Combustion, emissions, and turbine life considerations are emphasized. Compact, short residence time combustors must provide acceptable combustion efficiencies and emissions using the coal fuels. The turbine flow path exposed to the products of combustion (POC) from those combustors must achieve acceptable deposition, erosion, and corrosion (DEC) lifetimes. Initial combustion and POC requirements are reviewed based on past experience and the results of a recent program to evaluate combustion, emissions, and DEC from a subscale turbine combustor.

Optimal design of the high-pressure cylinder flow path in updating the T-100-12.8 steam turbine

2007 ◽  
Vol 54 (4) ◽  
pp. 272-275 ◽  
Author(s):  
N. N. Gudkov ◽  
A. N. Babiev ◽  
V. I. Kirillov ◽  
S. A. Koshelev ◽  
O. N. Petrova ◽  
...  
Keyword(s):  
High Pressure ◽  
Optimal Design ◽  
Steam Turbine ◽  
Flow Path ◽  
High Pressure Cylinder ◽  
Pressure Cylinder ◽  
Cylinder Flow

scholarly journals Design concept of high-power supercritical CO2 Allam cycle gas turbine flow path

Vestnik IGEU ◽  
2018 ◽  
pp. 5-14
Author(s):  
A.N. Rogalev ◽  
◽  
E.Yu. Grigoryev ◽  
V.O. Kindra ◽  
S.K. Osipov ◽  
...  
Keyword(s):  
Gas Turbine ◽  
High Power ◽  
Supercritical Co2 ◽  
Flow Path ◽  
Design Concept ◽  
Turbine Flow Path
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