마이크로 급 펠톤 터빈의 설계와 공기주입에 따른 성능 분석 (Micro Pelton Turbine Design and Performance Analysis for Air Injected Operation)

서지정보

· 발행기관 : 한국유체기계학회
· 수록지 정보 : 한국유체기계학회 논문집 / 24권 / 2호 / 5 ~ 12페이지
· 저자명 : 박현수, 양호성, Batbeleg Tuvshintugs, 김인철, 이영호

초록

In this study, a new efficiency improvement method by means of air injection into Pelton turbine jet is presented. In order to analyze air injected jet performance, firstly, micro size 5kW Pelton turbine was designed and analyzed. Similarly the analysis was carried out on a small size 100kW turbine. For the 100kW Pelton turbine, 5kW model was scaled up based on the jet diameter and rotational speed. 5kW performance analysis was performed under several rotational speed. After achieving optimized rotational speed. Air injected jet analysis was performed for rated rotational speed condition. Air injection rate was 1%, 5%, 10%, 15% of the water volume flow rate. Efficiency increase rate was reliable. The 100kW turbine was designed in two types, one jet and two jets systems. Air injection rate was made same and also found to have a reliable increase in efficiency.

영어초록

In this study, a new efficiency improvement method by means of air injection into Pelton turbine jet is presented. In order to analyze air injected jet performance, firstly, micro size 5kW Pelton turbine was designed and analyzed. Similarly the analysis was carried out on a small size 100kW turbine. For the 100kW Pelton turbine, 5kW model was scaled up based on the jet diameter and rotational speed. 5kW performance analysis was performed under several rotational speed. After achieving optimized rotational speed. Air injected jet analysis was performed for rated rotational speed condition. Air injection rate was 1%, 5%, 10%, 15% of the water volume flow rate. Efficiency increase rate was reliable. The 100kW turbine was designed in two types, one jet and two jets systems. Air injection rate was made same and also found to have a reliable increase in efficiency.

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