• Title/Summary/Keyword: 스팀터빈

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A Study on The Optimization of HP & LP Turbine's Capacity for District Heating CHP Using Simulation Program (지역난방용 열병합발전 시스템에서 고압 및 저압 Turbine 용량비율의 최적화에 관한 연구)

  • Jeong, Gyeong-Suk;Kim, Cheol;Jeong, Chan-Kyo
    • Proceedings of the Korea Society for Energy Engineering kosee Conference
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    • 1994.11a
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    • pp.111-115
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    • 1994
  • 열공급 대상지역의 연간 열부하를 예측하여 분석한 후 지역난방용 열병합발전 시스템에서 스팀터빈의 고압 및 저압터빈의 용량을 변화시켜 열부하 대상지역에서 운전하였을시 가장 적은 에너지를 소비하는 고압 및 저압터빈의 용량비율을 찾아 보았다. 추기배압터빈일 경우는 각 터빈용량의 비율변화에 거의 영향을 받지 않았으며 추기복수터빈일 경우 고압터빈용량의 비율이 적을수록 동일 열부하에 대한 에너지소비량은 적게 나타났으며 발전량은 증가되었다.

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A Study on Bidding Strategy Model of Combined Cycle Plants in Korean Electricity Market (우리나라 전력시장에서 복합화력 발전의 입찰전략 수립 모형 연구)

  • Kim, Sang-Hoon;Lee, Kwang-Ho;Jeong, Lae-Hyuk
    • Proceedings of the KIEE Conference
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    • 2008.07a
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    • pp.550-551
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    • 2008
  • 복합화력발전은 여러 가지 장점으로 오늘날 많이 사용되는 발전방식이며, 가스터빈과 스팀터빈의 결합으로 여러 운전 Mode를 갖는다. 본 연구에서는 이러한 특성을 고려하여 복합화력 발전사와 시장운영자와의 관계를 분석하고, 복합화력발전사가 운전 Mode 선택을 전략변수로 사용하는 입찰전략 수립 모형을 제시한다.

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Performance and Flow Characteristics Analyses of Diaphragm Seals for Large Power-Generation Steam Turbines (대형 발전용 스팀터빈 다이아프램 시일의 성능 및 유동특성 해석)

  • Park, Jun-Young;Lee, An-Sung;Kim, Byung-Ok;Kim, Young-Cheol
    • Proceedings of the KSME Conference
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    • 2008.11b
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    • pp.2612-2615
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    • 2008
  • Diaphragm seals have great effects on the performance of large power-generation steam turbines. Hence, it is important to decrease the leakage flow through the diaphragm seals and understand the flow characteristics within the diaphragm seals. In this study, numerical analysis was carried-out with the seals of large one-body type diaphragms developed by a domestic company. CFX, which is a commercial CFD code, was used to analyze the performance and flow characteristics of the diaphragm seals for three difference clearance cases. The results of numerical analysis show variations in the performance and flow characteristics according to the changes of labyrinth seal clearance.

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Air Similarity Test for the Evaluation of Aerodynamic Performance of Steam Turbine (스팀터빈의 공력성능 평가를 위한 공기 상사실험)

  • Lim, Byeung-Jun;Lee, Eun-Seok;Lee, Ik-Hyoung;Kim, Young-Sang;Kwon, Gee-Bum
    • 유체기계공업학회:학술대회논문집
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    • 2003.12a
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    • pp.73-79
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    • 2003
  • The steam turbine efficiency is an important factor in power plant. Accurate evaluation of steam turbine performance is essential. However, it is not easy to evaluate the steam turbine performance due to its high temperature and high pressure circumstance. Therefore most steam turbine performance tests were conducted by air similarity test. This paper described a test program for air similarity test of steam turbine at Korea Aerospace Research Institute. A test facility has been designed and built to evaluate aerodynamic performance of turbines. The test facility consists of air supply system, single stage test section, power absorption system, instrumentation and auxiliary system. For evaluation of steam turbine performance, the test of single stage axial turbine air similarity performance was conducted and uncertainty analysis was performed.

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A Study on the Development of HILS System for Performance Test of Digital Governor (디지털 조속기의 성능 시험을 위한 HILS 시스템 개발에 관한 연구)

  • 장민규;조성훈;전일영;안병원;박영산;배철오;이성근;김윤식
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2003.05a
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    • pp.317-319
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    • 2003
  • HILS(Hardware In-the Loop Simulation) is commonly used in the development and testing of embedded systems, when those systems cannot be tested easily, thoroughly, and repeated in their operational environments. HILS can be a useful tool to develop products more quickly and cost effectively and also reduces the possibility of serious defects being discovered after production. During the product development period, Design optimization and hardware/software debugging can be performed using HILS skill. This paper describes a HILS model for the STG(Steam-Turbine Generator) Simulator to prove the performance of the developed Digital Governor. It is developed using software technics which can confirm the responses of a real-time system.

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