scholarly journals New Flow Stabilizers as a Method to Improve the Reliability and Efficiency of Power Equipment

2016 ◽  
Vol 10 (2) ◽  
pp. 172 ◽  
Author(s):  
Arkadiy Zaryankin ◽  
Nikolay Rogalev ◽  
Andrey Rogalev ◽  
Anna Kocherova ◽  
Galina Kurdiukova
Keyword(s):  
Steam Turbine ◽  
Hydraulic Resistance ◽  
Supply System ◽  
Strength Characteristics ◽  
Dynamic Loads ◽  
Power Equipment ◽  
Design Features ◽  
Flow Area ◽  
Evaluation Data ◽  
Comparable Level

<p>This article studies the nature and causes of the dynamic loads exerted by the flow on the walls of the equipment, on an example of a curved component of the steam turbine steam supply system and examines the existing flow stabilizers used to control such loads. Based on the analysis of the shortcomings found in these devices, the article offers new designs of flow stabilizers. The newly developed devices reduce the flow area of the pipeline approximately twice less than the existing ones, so, they were supposed to have much lower hydraulic resistance. The study of the new the flow stabilizers’ efficiency was performed with the use of CFD methods and assessed in comparison with their wide used analogues. Based on the evaluation data, the designed devices provide a comparable level of decrease in dynamic loads, however, they have about five times lower hydraulic resistance. According to their design features, they are also supposed to have better mechanic strength characteristics.</p>

Analysis of Deposited Salts in the Through-Flow Area of a 210 MW Steam Turbine

2013 ◽  
Vol 55 (10) ◽  
pp. 743-747
Author(s):  
Branko Staniša ◽  
Lidija Ćurković ◽  
Zdravko Schauperl
Keyword(s):  
Steam Turbine ◽  
Flow Area ◽  
Through Flow

Gas Turbine for Mobile Power Unit

1956 ◽  
Author(s):  
F. O. Hennig
Keyword(s):  
Gas Turbine ◽  
Power Unit ◽  
Power Equipment ◽  
Design Features

This paper is a continuation of a previously presented paper, which described the over-all design of the major components of a mobile power unit. The present paper is concerned with the main power equipment only and offers a detailed description of the design features which were developed for this project and also provide the flexibility necessary to make this gas turbine suitable for other applications.

Design of Fast and Reliable Steam Surface Condensers

2020 ◽  
Author(s):  
Ranga Nadig
Keyword(s):  
Steam Turbine ◽  
Gas Turbines ◽  
Power Plants ◽  
Combined Cycle ◽  
Design Features ◽  
Surface Condenser ◽  
Combined Cycle Plant ◽  
Startup Time ◽  
On Line ◽  
To Come

Abstract Power plants operating in cyclic mode, standby mode or as back up to solar and wind generating assets are required to come on line on short notice. Simple cycle power plants employing gas turbines are being designed to come on line within 10–15 minutes. Combined cycle plants with heat recovery steam generators and steam turbines take longer to come on line. The components of a combined cycle plant, such as the HRSG, steam turbine, steam surface condenser, cooling tower, circulating water pumps and condensate pumps, are being designed to operate in unison and come on line expeditiously. Major components, such as the HRSG, steam turbine and associated steam piping, dictate how fast the combined cycle plant can come on line. The temperature ramp rates are the prime drivers that govern the startup time. Steam surface condenser and associated auxiliaries impact the startup time to a lesser extent. This paper discusses the design features that could be included in the steam surface condenser and associated auxiliaries to permit quick startup and reliable operation. Additional design features that could be implemented to withstand the demanding needs of cyclic operation are highlighted.

Compact Diaphragm Turbine Technology and Its First Application in a Turbine Retrofit

2008 ◽  
Author(s):  
David M. Littlewood ◽  
Simon I. Hogg
Keyword(s):  
Power Generation ◽  
Steam Turbine ◽  
New Technology ◽  
Design Features ◽  
Design Solutions ◽  
Retrofit Design

The merger between the Power Generation divisions of ABB and Alsthom in 1999, has resulted in the present day Alstom Steam Turbine Retrofit Business being the only supplier who can offer both impulse (disc and diaphragm) and reaction (drum rotor) turbine retrofit solutions across the entire product power range. The impulse and reaction turbine technologies both possess design features that are aimed at achieving the best evaluated performance for retrofit turbine solutions. Alstom has now combined service proven features from these two technologies to form the new Compact Diaphragm steam turbine technology. This will allow turbine retrofit design solutions to be optimised to levels beyond that possible with either of the contributing technologies. The Compact Diaphragm design features are described in this paper, together with the validation of the new technology. The first application entered service in June 2007 in the retrofitted HP cylinder of a G3 HP turbine in USA and is also described in this paper.

The design features of a K-110-1.6 bottom steam turbine

2009 ◽  
Vol 56 (9) ◽  
pp. 741-746
Author(s):  
A. E. Valamin ◽  
A. A. Ivanovskii ◽  
M. Yu. Kuklin ◽  
T. L. Shibaev
Keyword(s):  
Steam Turbine ◽  
Design Features

Development and Operating Experience of a Two-Casing 600MW Ultra-Super-Critical Steam Turbine

2005 ◽  
Author(s):  
Yoshinori Tanaka ◽  
Hiroharu Ohyama ◽  
Naoto Tochitani ◽  
Tamiaki Nakazawa
Keyword(s):  
Electric Power ◽  
Steam Turbine ◽  
Operating Experience ◽  
Low Pressure ◽  
Steam Turbines ◽  
Design Features ◽  
Intermediate Pressure ◽  
Commercial Operation ◽  
Compact Design ◽  
Maintenance Requirements

600MW class steam turbines are typically manufactured in three casing configurations with two low-pressure casings. Mitsubishi Heavy Industries (MHI) has developed and manufactured a 600MW two-casing Ultra Super Critical turbine for the Hirono No.5, Tokyo Electric Power Co. in Japan, which comprises one combined high- and intermediate-pressure casing and one double-flow low-pressure casing. This unit started the commercial operation in July 2004. Two-casing design simplifies construction and maintenance requirements and saves capital cost of the plant. This compact design was realized mainly due to the development of 3000 rpm 48 inch steel low-pressure end blades, the longest steel blade in the industries for 3000 rpm machines. In addition, a highly efficient and compact design in achieving 600°C steam condition was realized by employing a combined high- and intermediate-pressure frame. This paper addresses the design features of the 600MW two-casing USC turbine, operating condition of the Hirono No.5 and the results of the verification tests performed.

scholarly journals Influence of residential complex construction on the condition of the sewage collector and the underground water supply system in Kyiv on A. Barbyusa st.

2018 ◽  
Vol 2 (51) ◽  
pp. 115-123
Author(s):  
Valerii Shuminskiy ◽  
Serhiy Stepanchuk ◽  
Yaroslav Dombrovskyi ◽  
Svitlana Kostetzkay ◽  
Yegor Kostochka
Keyword(s):  
Water Supply ◽  
Strain State ◽  
Underground Water ◽  
Technical Condition ◽  
Supply System ◽  
Water Supply System ◽  
Design Features ◽  
Stress Strain ◽  
Complex Construction ◽  
Main City

The article presents the design features of a residential complex located in the Barbyus street in Kyiv. The main city sewer and water supply is the basis of the residential designed complex. It is necessary to consider the possible impact of new residential complex construction on the sewer and water supply. To assess this effect, the stress-strain state in the soil around the collector and water supply system has been analyzed. Conclusions are drawn concerning the technical condition of the sewer and water supply system after residential complex construction  and its further operation.

Design of 321-Mw Cross-Compound Steam Turbine—River Rouge Unit No. 3

1959 ◽  
Vol 81 (2) ◽  
pp. 123-131
Author(s):  
C. D. Wilson
Keyword(s):  
Steam Turbine ◽  
Size Range ◽  
Design Features ◽  
Turbine Generator ◽  
General Arrangement ◽  
Generator Unit

This paper discusses the design features and general arrangement of a 321-mw close-coupled cross-compound 3600/1800-rpm steam turbine-generator unit. The machine is designed for operation with subcritical pressures and with steam temperatures that permit using ferritic materials. It was the first machine to be ordered in the 300-mw size range and is installed in the River Rouge Station of The Detroit Edison Company.

Dynamic modeling of thermal-supply system for two-by-one combined-cycle gas and steam turbine unit

2020 ◽  
Vol 209 ◽  
pp. 106549
Author(s):  
Nianci Lu ◽  
Lei Pan ◽  
Zhenxiang Liu ◽  
Kwang Y. Lee ◽  
Yajun Song ◽  
...  
Keyword(s):  
Steam Turbine ◽  
Dynamic Modeling ◽  
Turbine Unit ◽  
Supply System ◽  
Combined Cycle ◽  
Steam Turbine Unit
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