평균반경해석에 의한 7 MW급 증기터빈의 탈설계 성능해석

다국어 초록 (Multilingual Abstract)

Steam turbines have been used for various applications. The published data for the performance analysis of steam turbine are very limited due to the exclusive policy between leading manufactures even though it has been used since the nineteenth century. Therefore, a study was conducted to predict the performance of steam turbine at off-design points. A meanline analysis method was developed, which was validated on a used steam turbine. The compared results showed that they were quite well agreed. In addition, it was applied to a designed 7 MW class steam turbine of ten stages for obtaining the performance at off-design points. The comparable result at design point was well agreed, and the performance at off-design points showed that the output power of the turbine was quite sensitive for the varied mass flow rate and temperature at turbine inlet. The output power was decreased by 12.7% for a 10% decrease of mass flow rate, and it was also decreased by 8% for a 10% decrease of temperature at inlet.

참고문헌 (Reference)

1 임병준, "스팀터빈의 공력성능 평가를 위한 공기 상사실험" 한국유체기계학회 7 (7): 29-35, 2004

2 신중하, "반동도에 따른 증기터빈의 설계 및 성능해석" 대한기계학회 35 (35): 1391-1398, 2011

3 정일교, "강제순환 보일러에서 과열증기 및 재열 증기가 터빈효율에 미치는 영향에 관한 연구" 경상대학교 산업대학원 2000

4 A. J. Glassman, "Users manual and Modeling Improvements for Axial Turbine Design ad Performance Computer Code TD2-2" NASA 1992

5 W. P. Sanders, "Turbine Steam Path :Maintenance and Repair" Pennwell Publishing 711-813, 2002

6 A. Verneau, "Supersonic Turbines for Organic Fluid Rankine Cycles from 3kW to 1300kW"

7 P. Shlyakhin, "Steam Turbines: Theory and Design, translated from the Russian by A. Jaganmohan" University Press of the Pacific 45-97, 2005

8 U. H. Nah, "Steam Turbine Technology for Advanced Steam Condition" 2174-2179, 2003

9 G. B. Kwon, "Steam Turbine Design Using 3-Dimensional Flow Analysis" 312-317, 2000

10 S. Ishigai, "Steam Power Engineering Thermal and Hydraulic Design Principles" Cambridge University Press 42-112, 2011

11 Roberto Agromayor, "Preliminary Design and Optimization of Axial Turbines Accounting for Diffuser Performance" MDPI AG 4 (4): 32-, 2019

12 H. P. Bloch, "Practical Guide to Steam Turbine Technology" McGraw-Hill Education 67-93, 1995

13 G. O. Ohlsson, "Partial-Admission Turbines" 29 (29): 1017-1028, 1962

14 E. Saito, "Latest Technologies and Future Prospects for a New Steam Turbine" 52 (52): 39-46, 2015

15 "IFC-67, Thermodynamic and Transport Properties of Steam"

16 C. Carcasci, "Effect of a Real Steam Turbine on Thermo-economic Analysis of Combined Cycle Power Plants" 138 : 32-47, 2017

17 Axial, "CAE Software for Axial Compressors and Turbines"

18 J. P. Veres, "Axial and Centrifugal Compressor Mean Line Flow Analysis Method 2" NASA 1992

19 AxSTREAM, "Axial Turbine Design"

20 J. H. Horlock, "Axial Flow Turbines" Butterworths 1973

21 J. I. Cofer IV, "Advances in Steam Path Technology" GE Power Systems 1-40, 1996

22 W. L. Stewart, "A Study of Axial-Flow Turbine Efficiency Characteristics in Term of Velocity Diagram Parameters" ASME 1961

23 M. Casey, "A New Streamline Curvature Throughflow Method For Radial Turbomachinery" 132 (132): 031021-, 2010

24 조수용, "7 MW급 증기터빈 기본형상설계 기법에 대한 연구" 한국동력기계공학회 23 (23): 37-46, 2019

25 김영철, "100kW급 증기터빈 설계기술 개발에 관한 연구" 한국유체기계학회 12 (12): 46-54, 2009