为了确切掌握水轮泵机组的运行特性,为水轮泵站的运行管理和技术改造提供可靠的技术资料和特性数据,在对测试方法和测试技术进行分析研究的基础上,对章江水轮泵站进行了水轮泵机组特性的现场测试。测试包括水力发电工况和水轮泵提水工况...为了确切掌握水轮泵机组的运行特性,为水轮泵站的运行管理和技术改造提供可靠的技术资料和特性数据,在对测试方法和测试技术进行分析研究的基础上,对章江水轮泵站进行了水轮泵机组特性的现场测试。测试包括水力发电工况和水轮泵提水工况,各测试项目误差均达到《泵站现场测试规程》中的 C 级精度标准。展开更多
2021 This study examined impact of climate variability on reservoir-based hydro-power-generation in Jebba dam,Niger State of Nigeria.Data of rainfall,temperature,evaporation,reservoir inflow and outflow and power outp...2021 This study examined impact of climate variability on reservoir-based hydro-power-generation in Jebba dam,Niger State of Nigeria.Data of rainfall,temperature,evaporation,reservoir inflow and outflow and power output for thirty-one years were obtained from Jebba Hydropower Station[JHP].The Man-Kendall and Pearson’s Product Moment Correlation Coefficient(PPMCC)were used to establish the influence of weather parameters on the reservoir inflow and outflow.Findings showed increased electricity generation during dry season than wet season.The highest annual mean amount of the electricity generated was in 2016 having mean of 689.12 mwh,dry season(352.26 mwh)and wet season(336.86 mwh).Reservoir inflow showed a negative trend with severe fluctuations in 1998(1436.42 M3/Sec),1999(1581.08 M3/Sec)and 2010(1641.08 M3/Sec)with a steady increase in 2016(1556.0042 M3/Sec),2017(1556.4242 M3/Sec)and 2018(1635.7542 M3/Sec).The reservoir outflow pattern showed tremendous and negative trend in fluctuation with increase in 1998(1421.75 M3/Sec)1999(1581.58 M3/Sec)and 2010(1641.16 M3/Sec)and a steady increase in 2016(1535.00 M3/Sec),20171558.83 M3/Sec and 2018(1632.00 M3/Sec).Thus,rainfall and reservoir inflow had strong relationships with the amount of power generated than temperature and evaporation.Therefore,the government should increase the water carrying capacity of the reservoir construction by storing water to be used during dry periods.展开更多
文摘2021 This study examined impact of climate variability on reservoir-based hydro-power-generation in Jebba dam,Niger State of Nigeria.Data of rainfall,temperature,evaporation,reservoir inflow and outflow and power output for thirty-one years were obtained from Jebba Hydropower Station[JHP].The Man-Kendall and Pearson’s Product Moment Correlation Coefficient(PPMCC)were used to establish the influence of weather parameters on the reservoir inflow and outflow.Findings showed increased electricity generation during dry season than wet season.The highest annual mean amount of the electricity generated was in 2016 having mean of 689.12 mwh,dry season(352.26 mwh)and wet season(336.86 mwh).Reservoir inflow showed a negative trend with severe fluctuations in 1998(1436.42 M3/Sec),1999(1581.08 M3/Sec)and 2010(1641.08 M3/Sec)with a steady increase in 2016(1556.0042 M3/Sec),2017(1556.4242 M3/Sec)and 2018(1635.7542 M3/Sec).The reservoir outflow pattern showed tremendous and negative trend in fluctuation with increase in 1998(1421.75 M3/Sec)1999(1581.58 M3/Sec)and 2010(1641.16 M3/Sec)and a steady increase in 2016(1535.00 M3/Sec),20171558.83 M3/Sec and 2018(1632.00 M3/Sec).Thus,rainfall and reservoir inflow had strong relationships with the amount of power generated than temperature and evaporation.Therefore,the government should increase the water carrying capacity of the reservoir construction by storing water to be used during dry periods.
