Achalesh Kumar Pandey
General Electric
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Publication
Featured researches published by Achalesh Kumar Pandey.
IEEE Sensors Journal | 2011
Chayan Mitra; Sandip Maity; Ayan Banerjee; Achalesh Kumar Pandey; Ajay Kumar Behera; Vinay Bhaskar Jammu
Techniques using a tunable diode laser (TDL) and multiple broadband lasers have been developed and tested for measuring the steam quality or steam wetness fraction. The steam wetness fraction was estimated using a ratiometric technique combining measured absorbance of water and water vapor overtone transitions in the near infrared spectral band. Using these techniques we were able to measure a wide variation in steam quality ranging from saturated steam condition to 80% mass fraction of steam with less than 1% error. Our sensor can be tailor-made to suit cost, sensitivity, and operating conditions as per requirements, and could be used eventually for measuring the quality of steam in the low pressure stage of steam turbines.
Volume 3: Controls, Diagnostics and Instrumentation; Cycle Innovations; Marine | 2010
Y. B. Ravi; Achalesh Kumar Pandey; Vinay Bhaskar Jammu
Gas turbines are the main power producing components in combined cycle and simple cycle power plants. A gas turbine trip is a rapid uncontrolled shutdown of the turbine that is initiated by the turbine controller to protect it from failures. The turbine loses significant amount of life due to strong thermal transients during a trip and the utility company loses revenue because of lost power generation. Therefore, prediction of trips has significant financial impact. This paper presents a method to predict gas turbine trips due to electro hydraulic control valve system failures. This paper also provides methods to detect gas control valve system failures in their incipient phase and methods to identify various failure signatures for diagnostics. The methodology presented here could be extended beyond the current application to other causes of trips in the gas turbine, thereby impacting availability and reliability of the turbine.Copyright
Archive | 2014
Lisa Anne Wichmann; Achalesh Kumar Pandey; Christopher Michael Raczynski
Archive | 2011
Maria Cecilia Mazzaro; Mohammad Waseem Adhami; Juan Paulo Chavez Valdovinos; Achalesh Kumar Pandey; Atanu Talukdar; Adriana Elizabeth Trejo; Jose Vega Paez
Archive | 2008
Sudhanshu Rai; Vinay Bhaskar Jammu; Vivek Venugopal Badami; Achalesh Kumar Pandey; Rahul Srinivas Prabhu; Ajay Kumar Behera; Aninda Bhattacharya; Venkatesh Rajagopalan; Nidhi Naithani
Archive | 2011
Kamal Mannar; Mahesh Kumar Asati; Achalesh Kumar Pandey; Kelvin Rafael Estrada
Archive | 2010
Canan Uslu Hardwicke; Subrat Nanda; Achalesh Kumar Pandey; Sameer Vittal; Jagmeet Singh
Archive | 2007
Soumen De; Ravi Yoganatha Babu; Viany Bhaskar Jammu; Achalesh Kumar Pandey; Richard J. Rucigay
Archive | 2011
Achalesh Kumar Pandey; Mahesh Kumar Asati; Kamal Mannar; Durgaprasad R. Nallamotu
Archive | 2007
Achalesh Kumar Pandey; Ravi Yoganatha Babu; Vinay Bhaskar Jammu; Slawomir Marian Zaremba