2022년 펌프 및 수차 분야 연구동향

1. 서 론

2022년 국내 펌프 및 수차 분야의 연구동향을 분석하기 위하여 2022년 한국유체기계학회 논문집과 한국유체기계학회 하계 및 동계 학술대회 발표논문 초록집에 발표된 논문을 조사하였다. 펌프 분야에서 53편, 수차 분야에서 21편, 펌프터빈 분야에서 4편의 논문이 발표되어 총 78편의 논문이 2022년에 발표되었다.

표 1은 펌프 및 수차 분야에서 발표된 논문을 분류 기준별로 정리한 것이며, 전년도 대비 펌프 분야의 논문 수는 증가하였고, 수차 분야의 논문 수는 감소하였으며, 펌프터빈 분야의 논문 수는 증가하였다. 펌프 분야에서는 펌프의 성능 및 효율향상과 최적설계 연구, 수차 분야에서는 중⋅대수력용 수차발전기 및 다양한 종류의 수차에 대한 성능시험 연구, 그리고 펌프터빈 분야에서는 양수발전소 펌프터빈의 운전성능 향상을 위한 연구가 활발히 수행되었다.

표 1

분류 기준 별 논문 수

2. 펌프 분야 관련 연구

펌프 분야에서는 산업용 펌프와 특수형 펌프 등 다양한 펌프들의 성능 및 효율 향상과 최적설계에 대한 연구가 수행되었다.

원심펌프^(1∼10)에 대해서는 펌프의 형상과 구조에 따른 유동 특성 및 운전 조건에 따른 성능 분석에 대한 연구와 스크류펌프, 다단 원심펌프에 대한 연구가 수행되었다. 사류펌프⁽¹¹⁾에 대해서는 비속도 변화에 따른 설계사양 및 성능을 만족하는 임펠러 설계 기술에 관한 연구가 수행되었고, 축류펌프^(12∼25)에 대해서는 임펠러를 포함한 펌프 구성요소의 형상변화에 따른 성능 특성에 대한 연구가 진행되었다.

또한, 터보펌프^(26∼28), 단일채널펌프⁽²⁹⁾, 마이크로버블 펌프⁽³⁰⁾, 원자로 냉각재펌프⁽³¹⁾ 순환펌프⁽³²⁾ 등의 특수펌프에 대해서도 성능향상을 위한 심도 있는 연구가 진행되었다. 수중펌프⁽³³⁾, LNG펌프⁽³⁴⁾, 부스터펌프^(35∼36), 슬러지펌프⁽³⁷⁾, 전기펌프⁽³⁸⁾, 헤더커버펌프⁽³⁹⁾, 생채모방공학을 이용한 펌프 임펠러 설계⁽⁴⁰⁾ 등 펌프에 대해 산업계 적용을 위한 연구도 수행되었다.

한편, 하계 및 동계 학술대회에 구성된 펌프 관련 특별세션^(41∼53)에서는 4차 산업시대의 펌프에 대한 기대, 문제점, 신기술 및 분석 기법이 소개되었다. 또한, 펌프의 고효율화 정책 및 기술개발 동향에 대한 다양한 연구와 형상 및 구조 변화에 따른 최적설계 등에 대한 심도 있는 연구가 발표되었다.

3. 수차 분야 관련 연구

수차 분야에서는 중⋅대수력용 수차발전기의 안정성 확보 및 성능향상을 위한 연구가 폭넓게 진행되었고, 모델수차의 성능시험 및 평가를 위한 시스템 개발 연구가 수행되었다.

프란시스수차^(54∼65)에 대해서는 중⋅대수력용 수차의 흡출관 내 형성되는 와류 특성에 대한 수치해석적 연구, 그리고 터빈 러너와 헤드커버의 진동 분석을 통해 수차의 효율 및 안정성 확보와 비속도에 따른 설계 변수에 관한 연구가 발표되었다.

또한 프란시스 수차의 흡입 헤드가 캐비테이션 발생에 미치는 영향 분석⁽⁶⁶⁾, 기계학습기법을 이용한 저낙차 수차의 성능 예측 연구⁽⁶⁷⁾ 등 프란시스 수차의 초기 설계 방법⁽⁶⁸⁾, 수차 러너의 개념설계 방법에 대한 연구⁽⁶⁹⁾가 발표되었으며 또한, 중규모급 수력플랜트 연구과제물 설치 현안 사항⁽⁷⁰⁾에 대해서도 발표되었다.

한편, 하계 및 동계 학술대회의 수차 관련 특별세션을 통해서도 많은 연구가 발표되었다. 텍스트 마이닝을 기반으로 국내외 수차 설비 상태 감시체계 현황⁽⁷¹⁾을 분석하였으며 데이터맵 기반 수차 설비 상태 감시 센서 위치 선정⁽⁷²⁾에 관한 연구가 발표되었으며 또한, 수력발전소 유연화 운전 연구 개발의 동향⁽⁷³⁾, 화천 3호기 국산화 실증 수차발전기 기술 규격 검토⁽⁷⁴⁾에 대한 연구가 발표되었다.

4. 펌프터빈 분야 관련 연구

펌프터빈 분야에서는 양수발전소 펌프터빈의 운전성능 향상 및 양수발전설비 운영기술에 관한 연구, 비속도 및 임펠러 형상에 따른 펌프터빈 성능 분석에 대한 연구가 진행되었다.

하계 및 동계 학술대회의 펌프터빈 관련 특별세션을 통해서도 연구가 발표되었다. 열역학법 시험을 통한 삼랑진 양수발전소 터빈 효율시험⁽⁷⁵⁾에 대한 연구가 발표되었으며 “프랑스 Alstom社에서 설계하고 한국중공업(現 두산에너빌리티)에서 공급한 무주양수발전소”를 대상으로 외부 환경 변수에 따른 수차축 밀봉장치의 특성⁽⁷⁶⁾에 관한 연구가 발표되었다. 또한 비속도에 따른 펌프수차 흡출관 선회류 거동⁽⁷⁷⁾에 대한 연구 및 임펠러 형상에 따른 펌프수차 모델의 S 특성곡선에 미치는 영향⁽⁷⁸⁾에 대한 연구가 발표되었다.

5. 결 론

2022년도 한국유체기계학회 논문집과 한국유체기계학회 하계 및 동계 학술대회에서 발표된 논문을 바탕으로 2022년 펌프, 수차, 그리고 펌프터빈 분야의 연구동향에 대해서 살펴보았다. 펌프 분야에서는 펌프의 설계인자들을 통한 성능 및 효율 향상과 최적설계에 대한 연구가 발표되었고, 여러 분야의 산업계 적용을 위해 다양한 종류의 특수펌프에 대한 연구도 다수 발표되었다. 수차 분야에서는 중⋅대수력용 수차발전기의 성능 및 효율향상과 안전성 확보를 위해 실험 및 수치해석적 연구가 수행되었다. 펌프터빈 분야에서는 양수발전설비의 운영기술 및 외부환경에 따른 수차축 밀봉장치의 특성 연구, 펌프수차의 임펠러 형상에 따른 성능 분석 및 향상에 관한 기초 및 심화연구가 수행됨을 확인할 수 있었다. 2023년에도 펌프 및 수차 분야의 지속적인 발전을 이루기 위해 관련된 기초 및 심화 연구가 활발히 진행되어 우수한 연구성과가 발표되기를 기대한다.

References

• Hoang, T. H. M., Shrestha, U., and Choi, Y. D., 2022, “Hydraulic and Suction Performances of the Screw Centrifugal Pump for Live Fish Transfer According to Impeller Blade Inlet Shapes,” The KSFM Journal of Fluid Machinery, Vol. 25, No. 1, pp. 16∼25. [https://doi.org/10.5293/kfma.2022.25.1.016]
• Shrestha, U., Basnet, S., and Choi, Y. D., 2022, “Screw centrifugal pump performances based on impeller inlet shape,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 266∼267.
• Shrestha, U. and Choi, Y. D., 2022, “Supperession of cavitation in AJP and SCP models with J-Groove installation,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 270∼271.
• Jun, J. h. and Yoon, M. H., 2022, “Development of Tefon Lined Magnetic Drive Pump,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 216∼217.
• Shrestha, U. and Choi, Y. D., 2022, “Fluid flow analysis of multi-stage centrifugal pump by change in thermodynamic properties of working fluid,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 408∼409.
• Basnet, S., Shrestha, U., and Choi, Y. D., 2022, “Influence of the 3D modelling shapes from a 2D centrifugal pump model drawing on the pump performance and internal flow,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 414∼415.
• Kim, S., Roh, M. S., Kim, J. H., and Choi, Y. S., 2022, “Design technique of Centrifugal pump impellers by satisfied Design specification and Performance with Variables of Specific speeds,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 483∼484.
• Lee, Y. K. and Lee, G. H., 2022, “A Study on the Numerical Analysis Method of Cavitation according to Centrifugal Pump Shape and Operating Conditions,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 272∼273.
• Kwak, Y. J., Park, S. H., Chang, K. S., and Lee, G. H., 2022, “Prediction of Rotating Stall for Off-Design Centrifugal Impeller Flows Based on Bayesian Inference,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 520∼521.
• Lee, G. H. and Lee, Y. K., 2022, “Numerical Investigation of the Cavitation Flow Behavior for the Centrifugal Pump with Different Blade Leading Edge Profile,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 581∼582.
• Kim, S., Roh, M. S., Kim, J. H., and Choi, Y. S., 2022, “Design technique of Mixed-flow pump impellers by satisfied Design specification and Performance with Variables of Specific speeds,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 485∼486.
• Son, Y. J., Kim, Y. I., Yang, H. M., Lee, K. Y., Yoon, J. Y., and Choi, Y. S., 2022, “A Numerical Study on Performance and Internal Flow Field of an Axial Flow Pump with the Artificial Application of Inlet Guide Vane,” The KSFM Journal of Fluid Machinery, Vol. 25, No. 6, pp. 11∼18. [https://doi.org/10.5293/kfma.2022.25.6.011]
• Lee, H. J., Choi, B. L., Choi, D. H., Ma, S. B., Kim, S., and Kim, J. H., 2022, “Design of Axial-flow Pump Impeller Using Multi-stage Optimization Process,” The KSFM Journal of Fluid Machinery, Vol. 25, No. 6, pp. 28∼37. [https://doi.org/10.5293/kfma.2022.25.6.028]
• Kim, Y. S., Hwang, D. H., Lee, J. B., Hong, H. S., Lee, C. M., and Kim, W. J., 2022, “Design method of Inlet Guide Vane considering attack angle of Axial Flow Pumps,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 5∼6.
• Lim, J. Y. and Song, S. J., 2022, “URANS Flow Instability Analysis of Axial Flow Pump with IGV at Saddle Region,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 7∼8.
• Yang, H. M., Kim, Y. I., Son, Y. J., Lee, K. Y., and Choi, Y. S., 2022, “Analysis of energy consumption of the axial-flow pump applying operational scenario,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 272∼273.
• Lee, H. J., Choi, B. L., Choi, D. H., Ma, S. B., Kim, S., and Kim, J. H., 2022, “Design of Axial-flow Pump Impeller Using Multi-stage Optimization Process,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 320∼328.
• Kim, S. W., Choi, W. C., Yoo, I. S., Park, M. R., and Hwang, S. C., 2022, “Layout design and dynamic characteristic analysis for rotational stability of the axial pump,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 406∼407.
• Kim, S., Roh, M. S., Kim, J. H., and Choi, Y. S., 2022, “Design technique of Axial-flow pump impellers by satisfied Design specification and Performance with Variables of Specific speeds,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 487∼488.
• Son, Y. J., Kim, Y. I., Yang, H. M., Lee, K. Y., Yoon, J. Y., and Choi, Y. S., 2022, “A Numerical Investigation of Performance Characteristics of Axial Flow Pump with Various Inlet Flow Angles,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 489∼490.
• Yang, H. M., Son, Y. J., Kim, Y. I., Lee, K. Y., Park, S. K., and Choi, Y. S., 2022, “Analysis of energy consumption of the axial-flow pump simulating variable inlet guide vane,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 207∼208.
• Nguyen, D. A., Ma, S. B., Kim, S., and Kim, J. H., 2022, “The Effect of the Inflow Direction on Hydraulic Performance of an Axial-Flow Pump,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 340∼341.
• Choi, W. C., Kim, S. W., and Yoo, I. S., 2022, “임펠러 트림에 따른 축류 펌프의 성능 변화에 대한 실험적 연구,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 342∼343.
• Kim, Y. S., Hwang, D. H., Lee, C. M., Kim, W. J., and Oh, H. S., 2022, “Analysis of the effect of IGV shape according to variable angle range on performance of axial flow pumps,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 344∼345.
• Lim, J. Y. and Song, S. J., 2022, “URANS Investigation of IGV’s Influence on Transient Flow Structure in Impeller & Diffuser at Axial Flow pump,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 346∼347.
• Kwak, H. D., 2022, “Seal System for Rocket Engine Turbopump,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 68∼70.
• Kang, B. Y. and Choi, C. H., 2022, “Design of the Interface between an Inducer and an Impeller in Turbopumps Considering Suction Performance,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 435∼436.
• Bae, J. H., Shin, J. H., and Choi, C. H., 2022, “Evaluation of Hydrodynamic Performance of a 75-Tonf Turbopump Turbine with or without Exit Guide Vane,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 541∼542.
• Shrestha, U., Basnet, S. and Choi, Y. D., 2022, “Performance variation of a single channel pump by impeller design parameters,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 268∼269.
• Jang, C. M. and Lee, S. M., 2022, “Microbubble Pump Applied with DAF(Dissolved Air Flotation) System,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 491∼492.
• Kim, J. M., 2022, “Evaluation Method for the Inservice Inspection Interval Extension of RCP Flywheel,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 231∼233.
• Choi, M. K., Song, C. K., Kim, S. J., and Jung, K. H., 2022, “Cryogenic Endurance Test of Liquid Nitrogen Circulation Pump for Cooling Superconducting Cable,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 404∼405.
• Yoo, S. S., 2022, “Submersible Pump with built-in Discharge system to prevent motor flooding,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 124∼125.
• Kwak, Y. J., Kim, S. H., Cho, Y. J., Chang, K. S., and Baek, H. C., 2022, “Numerical Study of Labyrinth Seal Geometry for Minimum of Leakage Flow in LNG Pump,” The KSFM Journal of Fluid Machinery, Vol. 25, No. 4, pp. 30∼38. [https://doi.org/10.5293/kfma.2022.25.4.030]
• Park, S., Jeon, I., Ji, C. H., and Yoo, J. B., 2022, “A New Paradigm For Booster Pump Control : Variable Pressure Control – I,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 202∼203.
• Jeon, I., Park, S., Ji, C. H., and Yoo, J. B., 2022, “A New Paradigm For Booster Pump Control : Variable Pressure Control – Ⅱ,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 278∼279.
• Lee, N. and Lee, H. G., 2022, “Technology development of Sewage (Sludge) Pump,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 274∼275.
• Kwak, H. D., Choi, C. H., Lee, W. G., and Yoon, H. S., 2022, “Current Status of ElecPump AK03-M Block 2 for Rocket Engine,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 412∼413.
• Kim, T. W., 2022, “Remote Operation Improvement of Head Cover Pump,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 624∼626.
• Ahn, S. U., Jin, J. W., and Kim, J. W., 2022, “Study on pump impeller design using biomimetic engineering,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 638∼639.
• Hong, H. S., Kim, S. M., Bae, B. K., Moon, Y. J., and Lee, J. B., 2022, “가변형 운전 중대형 펌프기술 개발 : 1차년도 결과 및 향후 연구 방향,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 1∼2.
• Nguyen, D. A., Ma, S. B., Kim, S., and Kim, J. H., 2022 “Case Study for Designing the Variable Inlet Guide Vane,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 3∼4.
• Park, J. M., 2022, “Dissolved air flotation system for water treatment plant,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 52∼53.
• Oh, S. H., 2022, “Expect for Pump in 4IR Times,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 54∼55.
• Kwon, M. R., 2022, “Trouble Case of Pumping System,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 56∼57.
• Kim, S. K., 2022, “Flood Management Pump Gate System.” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 122∼123.
• Won, B. H., Cho, I. J., and Park, M. K., 2022, “Development of New Pump Coating Materials for Pump Efficiency Improvement and Energy Saving,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 258∼259.
• Song, H. Y., Han, S. P., Lee, J. W., Lee, E. W., and Lee, B. S., 2022, “The investigation and utilization plan of part load for the sump pump in sewage treatment plant,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 408∼409.
• Kim, B. R., Jang, H. J., and Suh, J. H., 2022, “Investigation of eccentric plain seal leakage analysis with transient CFD,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 416∼417.
• Lee, S. M., 2022, “IoT pump technology introduction,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 198∼199.
• Kim, D. S. and Lee, J. Y., 2022, “Visualization of NPSH Inception and Analysis,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 200∼201.
• Ha, Y. S., Lee, Y. D., and Lee, Y. B., 2022, “Research on condition diagnosis of variable operating vertical pump and interworking of engineering data for CPS(Cyber-Physical System).” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 211∼212.
• Kim, S. M., Bae, B. K., Moon, Y. J., Hong, H. S., and Lee, J. B., 2022, “가변형 운전 중대형 펌프기술 개발 : 2차년도 결과 및 향후 연구 방향,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 338∼339.
• Cho, T. Y., Ko, S. H., Cho, Y. and Bae, K. H., 2022, “A Prediction of the Transient Phenomena by the Load Rejection for a 50MW Francis Hydropower Plant,” The KSFM Journal of Fluid Machinery, Vol. 25, No. 2, pp. 21∼28. [https://doi.org/10.5293/kfma.2022.25.2.021]
• Cho, Y., Kim, Y. J., Choi, J. W., and Bae, K. H., 2022, “Study on 3D Shape Information Acquisition Method of Francis Turbine Runner,” The KSFM Journal of Fluid Machinery, Vol. 25, No. 3, pp. 13∼20. [https://doi.org/10.5293/kfma.2022.25.3.013]
• Shahzer, M. A., Kim, S. J., Cho, Y., and Kim, J. H., 2022, “Effect of Air Injection Holes Intrusiveness on Internal flow Phenomena of a Draft Tube Inside a Francis Turbine Model,” The KSFM Journal of Fluid Machinery, Vol. 25, No. 4, pp. 05∼12. [https://doi.org/10.5293/kfma.2022.25.4.005]
• Shahzer, M. A., Kim, S. J., Cho, Y., Choo, S. H., Nam, H. W., and Kim, J. H., 2022, “Effect of Suction Head on Inception and Development of Cavitation in a Francis Turbine Model,” The KSFM Journal of Fluid Machinery, Vol. 25, No. 4, pp. 13∼22. [https://doi.org/10.5293/kfma.2022.25.4.013]
• Park, N. H., 2022, “ADM Efficiency Test Validation and Discussion of 50 MW Francis turbine,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 111∼111.
• Kim, S. J., Roh, M. S., Kim, S., Ma, S. B., Park, J. G., and Kim, J. H., 2022, “Unsteady Flow Characteristics under Rated-Condition of a Francis Turbine with Specific Speed of 170-Class,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 145∼146.
• Bang, J. S. and Lee, D. H., 2022, “Comparison Between Dry/Wet Vibration Modes of Francis Runner,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 149∼150.
• Roh, M. S., Kim, S. J., Kim, S., Ma, S. B., Hwang, T. G., and Kim, J. H., 2022, “A Study on the Correlation of Runner design variables for the Francis Turbines with Low and High specific speeds,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 227∼228.
• Park, N. H., 2022, “A study of 50MW francis model turbine design, manufacture, installation in modernization,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 493∼495.
• Roh, M. S., Kim, S. J., Hwang, T. G., Kim, S. J., Park, J. G., and Kim, J. H., 2022, “Design Variable Correlations and CFD Verification of a 30MW-Class Francis Turbine at Various Specific Speeds.” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 159∼160.
• Shahzer, M. A., Murshid, S. M., Kim S., Roh, M. S., and Kim, J. H., 2022, “Parametric Study of a Francis Turbine Runner under Part Load Condition at Specific Speed of 200-Class with High efficiency,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 219∼220.
• Lee, H. S., Youn, Y. C., and Choi, M. H., 2022, “Review of vibration phenomenon when starting the water turbine in pump mode,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 35∼37.
• Shahzer, M. A., Kim, S. J., Cho, Y., Choo, S. H., Nam, H. W., and Kim, J. H., 2022, “Effect of suction head on inception and development of cavitation in a Francis turbine model,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 101∼110.
• Je, Y. W. and Kim, Y, J., 2022, “The Prediction of Performance of an Ultra-low Head Turbine Using Machine Learning Techniques,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 514∼515.
• Ahn, S. H., Joo, W. G., Lee, S. H., Cho, S. P., Chu, S. M., Park, J. G., and Im, H. B., 2022, “Study on preliminary designs of Fransis turbines,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 215∼216.
• Ahn, S. H., Joo, W. G., Lee, S. H., Cho, S. P., Chu, S. M., and Park, J. G., 2022, “Study on preliminary designs of Francis turbine runner,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 220∼221.
• Min, K. E., Kim, H. J., Jo, H. S., Yoon, M. J., Park, J. S., and Ma, J. A., 2022, “Study on Pending installation of Mid-sized Hydro Power Plant Research Project,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 116∼117.
• Jang, J. M., Jung, J. H., Sun, K. H., and Shin, Y. H., 2022, “Examination on Condition Monitoring Systems of Hydro-turbine Using Text Mining Technique,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 222∼223.
• Jang, J. M., Sun, K. H., Kang, J. G., and Shin, Y. H., 2022, “Data-Map Based Sensor Location Design for Condition Monitoring of Hydro-Turbine,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 156∼158.
• Kim, S. J., Park, J. G., Im, H. B., Ock, J. H., Park, E. S., Min, D. J., Choi, J. W., Lee, W. P., Kim, J. J., and Choi, J. H., 2022, “Survey on Research Trend for Flexible Operation of Hydro Power Plant,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 64∼65.
• Park, J. G., Im, H. B., Park, E. S., Ock, J. H., Choi, J. W., Kim, S. J., Shin, H. J., Kim, J. S., 2022, “Technical Specification for Rehabilitation of Hwacheon Hydropower #3,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 152∼153.
• Min, D. J. and Park, J. G., 2022, “Turbine Efficiency Test in the Samrangjin Pumped Storage Hydropower Plant by the Thermodynamic Method,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 68∼69.
• Kim, D. S., Jung, G. W., and Choi, S. W., 2022, “Analysis of the action characteristics of the shaft sealing device of the pumped generator,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Winter Annual Meeting, pp. 627∼632.
• Shrestha, U. and Choi, Y. D., 2022, “Swirl flow behavior in the pump turbine draft tube with various specific speeds,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 264∼265.
• Shrestha, U. and Choi, Y. D., 2022, “Effect of impeller shape on the “S” characteristics curve of pump turbine model,” Korean Society for Fluid Machinery, 2022, Proceedings of the KSFM 2022 Summer Annual Meeting, pp. 410∼411.