Journal Papers

  1. Aasma Bhattarai, Amit Gupta, Abishek Kafle, Prajwal Sapkota, Sailesh Chitrakar, Ole Gunnar Dahlhaug, and Suman Pradhan (2024). Application of Machine Learning Algorithm for Fault Detection in Pump. Proceedings of the UNIfied Conference of DAMAS, IncoME and TEPEN Conferences (UNIfied 2023)
  2. Ravi Poudel, Junde Shi, Zilong Zhao, Zhongdong Qian, Zhiwei Guo, Sailesh Chitrakar, and Bhola Thapa (2024). Experimental study of the effects on performane of Francis turbine due to sediments in flow. J. Phys.: Conf. Ser. 2752 012207
  3. Amul Ghimire, Atmaram Kayastha, Pawan Lal Bijukchhe, Sailesh Chitrakar and Hari Prasad Neopane (2023). Numerical Analysis of Francis Turbine being operated in variable speed from sediment erosion perspective. J. Phys.: Conf. Ser. 2629 012006
  4. Aaditya Karna, Sailesh Chitrakar, Mausam Bhurtel, Bivek Baral and Bjørn W Solemslie (2023). Numerical Analysis of Traditional and Hooped Pelton Runner at Various Operating Conditions. J. Phys.: Conf. Ser. 2629 012007
  5. Nischal Pokharel, Biraj Singh Thapa, Bjørn Winther Solemslie and Bhola Thapa (2023). Design and numerical study of a pump-turbine for retrofitting of an existing francis turbine. J. Phys.: Conf. Ser. 2629 012011
  6. Arun Pandey, Amul Ghimire, Pawal Lal Bijukchhe, Nischal Pokharel, Aman Kapali and Sailesh Chitrakar (2023). Numerical Simulation of Erosion in Pelton Spear Valve at Different Openings. J. Phys.: Conf. Ser. 2629 012019
  7.  Aatmaram Kayastha, Amul Ghimire, Pawan Lal Bijukchhe, Hari Prasad Neopane, and Ole Gunnar Dahlhaug (2023). Numerical investigation of model Francis turbine for performance enhancement with geometrical modification. J. Phys.: Conf. Ser. 2629 012005
  8. Prajwal Sapkota, Nischal Pokharel, Raman Silwal, Sailesh Chitrakar, Hari Prasad Neopane and Bhola Thapa (2023). Rotational Speed Measurement of a Shaft Using Infrared Sensor with NI Data Acquisition system and LabVIEW. J. Phys.: Conf. Ser. 2629 012020
  9. Mamata Rijal, Hari Prasad Neopane, Sailesh Chitrakar, Arun Pandey and Jwala Prasad Dev (2023). Numerical study of erosion on labyrinth seals of Francis turbine. J. Phys.: Conf. Ser. 2629 012021
  10. Arun Pandey, Saroj Gautam, Sailesh Chitrakar, Nirmal Acharya and Pawan Bijukchhe (2023). Numerical Investigation of Flow Behaviour and Erosion Potential in the Side-Wall Clearance Between Guide Vane and Runner. IOP Conference Series Materials Science and Engineering. 1279(1):012009
  11. Arun Pandey, Pawan Bijukchhe, Paras Khanal, Shyamhari Acharya, Sailesh Chitrakar and Hari Prasad Neopane (2023). Numerical study of a coil pump and comparison with field measurement. IOP Conference Series Materials Science and Engineering. 1279(1):012002
  12. Nirmal Acharya, Saroj Gautam, Sailesh Chitrakar, Chirag Trivedi and Ole Gunnar Dahlhaug (2022). “Application of hydro-abrasive erosion model from IEC 62364:2019 standard in Francis turbines.” IOP Conf. Ser.: Earth and Environ. Sci. 1079 012008.
  13. Ram Lama, Saroj Gautam, Laxman Lama, Hari Prasad Neopane and Sailesh Chitrakar (2022). “Development of a test rig for investigating the performance of a model Francis turbine.” IOP Conf. Ser.: Earth and Environ. Sci. 1079 012011.
  14. Aman Kapali, Hari Prasad Neopane, Sailesh Chitrakar and Oblique Shrestha (2022). “Design and development of non-recirculating type erosion test setup for hydraulic turbines.” IOP Conf. Ser.: Earth and Environ. Sci. 1079 012013.
  15. Amul Ghimire, Saroj Gautam, Sailesh Chitrakar and Hari Prasad Neopane (2022). “Optimization of Francis Turbine Runner for Variable Speed Operations with minimization of sediment erosion.” IOP Conf. Ser.: Earth and Environ. Sci. 1079 012029.
  16. Nischal Pokharel, Prajwal Sapkota, Amul Ghimire, Biraj Singh Thapa and Bhola Thapa (2022). “Experimental Analysis of a Centrifugal pump in pump mode and turbine mode.” IOP Conf. Ser.: Earth and Environ. Sci. 1079 012035.
  17. Prajwal Sapkota, Sailesh Chitrakar, Hari Prasad Neopane and Bhola Thapa (2022). “Problem Identification and Condition Monitoring status of Nepalese Power Plants.” IOP Conf. Ser.: Earth and Environ. Sci. 1079 012064.
  18. Dadi Ram Dahal, Ram Hari Khatri K.C, S Tandukar, Aman Kapali, Amul Ghimire, Amod Panthee, Sailesh Chitrakar and Bhola Thapa (2022). “Heat treatment optimization of 13Cr4Ni stainless alloy used as hydro turbine materials.” IOP Conf. Ser.: Earth and Environ. Sci. 1079 012116.
  19. Dadi Ram Dahal, Aatmaram Kayastha, Sailesh Chitrakar, Biraj Singh Thapa, Hari Prasad Neopane and Bhola Thapa (2022). “Performance Analysis of Micro Francis Turbine Manufactured Locally in Nepal.” IOP Conf. Ser.: Earth Environ. Sci. 1037 012062
  20. Saroj Gautam, Sailesh Chitrakar, Hari Prasad Neopane, W Bjørn Solemslie and Ole Gunnar Dahlhaug (2022). “Numerical investigation of a Pelton turbine at several operating conditions.” IOP Conf. Ser.: Earth Environ. Sci. 1037 012053
  21. Aman Kapali, Hari Prasad Neopane, Sailesh Chitrakar, Krishna Prasad Shrestha and Prajwal Sapkota (2022). “Pressure fluctuation measurement in pressure vessels.” IOP Conf. Ser.: Earth Environ. Sci. 1037 012052
  22. Nischal Pokharel, Amul Ghimire, Bhola Thapa and Biraj Singh Thapa (2022). “Wear in centrifugal pumps with causes, effects and remedies: A Review.” IOP Conf. Ser.: Earth Environ. Sci. 1037 012042
  23. Oblique Shrestha, Aman Kapali, Bhola Thapa, Hari P Neopane and Young Ho Lee (2022). “Experimental study of Crossflow turbine under different operating conditions.” IOP Conf. Ser.: Earth Environ. Sci. 1037 012033
  24. Saroj Gautam, Nirmal Acharya, Sailesh Chitrakar, Hari Prasad Neopane, Igor Iliev and Ole Gunnar Dahlhaug (2022). “Sediment erosion in the labyrinths of Francis turbine: A numerical study.” IOP Conf. Ser.: Earth Environ. Sci. 1037 012032
  25. Rakish Shrestha, Samman Singh Pradhan, Prithivi Gurung, Amul Ghimire and Sailesh Chitrakar (2022). “A review on erosion and erosion induced vibrations in Francis turbine.” IOP Conf. Ser.: Earth Environ. Sci. 1037 012028
  26. Aasma Bhattarai, Prashant Kunwar, Sailesh Chitrakar and Saroj Gautam (2022). “Investigation of sediment erosion in low head Francis turbines and its effect on the structural integrity.” IOP Conf. Ser.: Earth Environ. Sci. 1037 012020
  27. Prajwal Sapkota, Sailesh Chitrakar, Hari Prasad Neopane and Bhola Thapa (2022). “Measurements for Condition Monitoring of Hydropower plants: A Review.” IOP Conf. Ser.: Earth Environ. Sci. 1037 012019
  28. Ranjeet Twayna, Ram Manandhar, Bikash Singh, Dadiram Dahal, Atmaram Kayastha and Biraj Singh Thapa (2022). “Numerical investigation of Cavitation in Francis Turbine.” IOP Conf. Ser.: Earth Environ. Sci. 1037 012017
  29. Nirmal Acharya, Saroj Gautam, Sailesh Chitrakar and Ole Gunnar Dahlhaug (2022). “Development of simplified model for prediction of sediment induced erosion in Francis turbine’s sidewall gaps.” IOP Conf. Ser.: Earth Environ. Sci. 1037 012016
  30. Aatmaram Kayastha, Nashla Shakya, Biraj Singh Thapa, Bhola Thapa and Young Ho Lee (2022). “Assessment of Hydro cyclone Separator for Sediment Laden Hydropower Plants.” IOP Conf. Ser.: Earth Environ. Sci. 1037 012015
  31. Amul Ghimire, Prajwal Sapkota, Aatmaram Kayastha, Biraj Singh Thapa, Young Do Choi and Young Ho Lee (2022). “Experimental Analysis of a Simplified Francis Turbine.” IOP Conf. Ser.: Earth Environ. Sci. 1037 012014
  32. Abishek Kafle, Pratisthit Lal Shrestha, Raman Silwal, Bhola Thapa, Amul Ghimire and Sailesh Chitrakar (2022). “Use of 3D Printing technology for developing novel procedure to manufacture runner of Francis Turbine.” IOP Conf. Ser.: Earth Environ. Sci. 1037 012012
  33. Ram Lama, Saroj Gautam, Hari Prasad Neopane, Biraj Singh Thapa, Sailesh Chitrakar and Ole Gunnar Dahlhaug (2022). “Recent developments in the optimization of Francis turbine components for minimizing sediment erosion.” IOP Conf. Ser.: Earth Environ. Sci. 1037 012009
  34. Saroj Gautam, Nirmal Acharya, Ram Lama, Sailesh Chitrakar, Hari Prasad Neopane, Baoshan Zhu, Ole Gunnar Dahlhaug (2022). “Numerical and experimental investigation of erosive wear in Francis runner blade optimized for sediment laden hydropower projects in Nepal.” Sustainable Energy Technologies and Assessments
  35. Nirmal Acharya, Saroj Gautam, Sailesh Chitrakar, Chirag Trivedi,Ole Gunnar Dahlhaug (2021).” Leakage Vortex Progression through a Guide Vane’s Clearance Gap and the Resulting Pressure Fluctuation in a Francis Turbine.” Energies, Vol. 14(14), 4244
  36. Nischal Pokharel, Amul Ghimire, Bhola Thapa, Biraj Singh Thapa, Zhongdong Qian, Zhiwei Guo, “Numerical and experimental study of pump as turbine for sediment affected micro hydropower project in Nepal“, IOP Conference Series Earth and Environmental Science 774 (2020) 012062
  37. Sailesh Chitrakar, Bjorn Solemslie, Hari Prasad Neopane, Ole Gunnar Dahlhaug (2020), “Review on numerical techniques applied in impulse hydro turbines“. Renewable energy, vol. 159
  38. Ram Lama, Saroj Gautam, Sailesh Chitrakar, Hari Prasad Neopane, Biraj Singh Thapa, “Method of erosion prediction hill diagram to investigate the performance of Francis turbine operated in sediment laden water“, IOP Conference Series: Journal of Physics: Conf. Series 1608 (2020) 012017
  39. Amul Ghimire, Dadiram Dahal, Atmaram Kayastha, Sailesh Chitrakar, Biraj Singh Thapa, Hari Prasad Neopane, “Design of Francis turbine for micro hydropower applications“, IOP Conference Series: Journal of Physics: Conf. Series 1608 (2020) 012019
  40. Nischal Pokharel, Amul Ghimire, Biraj Singh Thapa, Bhola Thapa, “Opportunity for research and manufacturing of pump in Nepal“, IOP Conference Series: Journal of Physics: Conf. Series 1608 (2020) 012018
  41. Biraj Singh Thapa, Bhola Thapa, “Green Hydrogen as a Future Multi-disciplinary Research at Kathmandu University“, IOP Conference Series: Journal of Physics: Conf. Series 1608 (2020) 012020
  42. Saroj Gautam, Ram Lama, Sailesh Chitrakar, Hari Prasad Neopane, Biraj Singh Thapa, Baoshan Zhu, ” Numerical investigation on the effects of leakage flow from Guide vane-clearance gaps in low specific speed Francis turbines“, IOP Conference Series: Journal of Physics: Conf. Series 1608 (2020) 012016
  43. Abishek Kafle, Pratisthit Lal Shrestha, Sailesh Chitrakar, Bhola Thapa, Biraj Singh Thapa, Nischal Sharma, “A review on casting technology with the prospects on its application for hydro turbines“, IOP Conference Series: Journal of Physics: Conf. Series 1608 (2020) 012015
  44. Aman Kapali, Hari Prasad Neopane, Sailesh Chitrakar, Aatmaram Kayastha, Oblique Shrestha, “Experimental and CFD study of influence of sediment size on efficiency of hydrocyclone for use as sediment separation device“, IOP Conference Series: Journal of Physics: Conf. Series 1608 (2020) 012014
  45. Sangit Kattel, Jeewan Prakash Bhatt, Rahul Subedi, Bhola Thapa, Surendra Sujakhu, Abishek Kafle, “Investigation of Mechanical Properties of Brass Francis Turbine Manufactured by Local Investment Casting Technique in Nepal“, IOP Conference Series: Journal of Physics: Conf. Series 1608 (2020) 012013
  46. Ashish Sedai, Biraj Singh Thapa, Bhola Thapa, Aman Kapali, Zhongdong Qian, Zhiwei Guo, “Application of Reverse Engineering method to model eroded Francis runner”, IOP Conference Series: Journal of Physics: Conf. Series 1608 (2020) 012012
  47. Devendra Sharma, Bikalpa Khadka, Aashutosh Parajuli, Dadi Ram Dahal, Bhola Thapa, “Effect of welding pattern during repair and maintenance of Francis runner on sediment erosion: An experimental investigation using RDA“, IOP Conference Series: Journal of Physics: Conf. Series 1608 (2020) 012011
  48. Prabin Dhakal, Manish Adhikari, Biraj Singh Thapa, Atmaram Kayastha, Prajwal Sapkota, Dadi Ram Dahal, “Uncertainty evaluation of efficiency measurement in laboratory conditions“, IOP Conference Series: Journal of Physics: Conf. Series 1608 (2020) 012007
  49. Samita Rimal, Sanjay Pd. Sah, Nischal Pokharel, Biraj Singh Thapa, “An Experimental Investigation of PAT in Direct and Reverse Mode at Turbine Testing Lab“, IOP Conference Series: Journal of Physics: Conf. Series 1608 (2020) 012006
  50. Atmaram Kayastha, Biraj Singh Thapa, Bhola Thapa, Young Ho Lee, “Experimental investigation for R&D in sediment laden pico hydraulic francis turbine”, Renewable Energy, Vol. 155, 2020
  51. Saroj Gautam, Hari Prasad Neopane, Nirmal Acharya, Sailesh Chitrakar, Biraj Singh Thapa, Baoshan Zhu, “Sediment erosion in low specific speed francis turbines: A case study on effects and causes”, Wear, Vol. 442-443, 2020
  52. Sailesh Chitrakar, Hari Prasad Neopane, Ole Gunnar Dahlhaug, “Development of a test rig for investigating the flow field around guide vanes of Francis turbines”, Flow Measurement and Instrumentation, Vol. 70, 2019
  53. Aman Kapali, Sailesh Chitrakar, Oblique Shrestha, Hari Prasad Neopane and Biraj Singh Thapa, “A Review on Experimental Study of Sediment Erosion in Hydraulic Turbines at Laboratory Conditions“,
    IOP Conference Series: Journal of Physics: Conf. Series 1266 (2019) 012016
  54. Dadi Ram Dahal, Sailesh Chitrakar, Aman Kapali, Biraj Singh Thapa and Hari Prasad Neopane, “Design of Spiral Casing of Francis Turbine for Micro Hydro Applications“, IOP Conference Series: Journal of Physics: Conf. Series 1266 (2019) 012013
  55. Ram Lama, Saroj Gautam, Sailesh Chitrakar, Hari Pd. Neopane and Biraj Singh Thapa, “Comparative numerical analysis between two designs of Francis runner blades in sediment affected conditions“,
    IOP Conference Series: Journal of Physics: Conf. Series 1266 (2019) 012009
  56. Amul Ghimire, Dadi Ram Dahal, Nischal Pokharel, Sailesh Chitrakar, Biraj Singh Thapa and Bhola Thapa, “Opportunities and Challenges of introducing Francis Turbine in Nepalese Micro Hydropower Projects“, IOP Conference Series: Journal of Physics: Conf. Series 1266 (2019) 012007
  57. Rabina Awal, Prajwal Sapkota, Sailesh Chitrakar, Biraj Singh Thapa, Hari Prasad Neopane and Bhola Thapa, “A General Review on Methods of Sediment Sampling and Mineral Content Analysis“, IOP Conference Series: Journal of Physics: Conf. Series 1266 (2019) 012005
  58. Nirmal Acharya, Chirag Trivedi, N. M. Wahl, Saroj Gautam, Sailesh Chitrakar and Ole Gunnar Dahlhaug, “Numerical study of sediment erosion in guide vanes of a high head Francis turbine“, IOP Conference Series: Journal of Physics: Conf. Series 1266 (2019) 012004
  59. Saroj Gautam, Ram Lama, Sailesh Chitrakar, Hari Prasad Neopane, Biraj Singh Thapa and Baoshan Zhu, “Methodology to Predict Effects of Leakage Flow from Guide Vanes of Francis Turbine“, IOP Conference Series: Journal of Physics: Conf. Series 1266 (2019) 012003
  60. Animesh Bachan, Nirajan Ghimire, Johannes Eisner, Sailesh Chitrakar and Hari Prasad Neopane, “Numerical analysis of low-tech overshot water wheel for off grid purpose”, IOP Conference Series: Journal of Physics: Conf. Series 1266 (2019) 012001
  61. Sailesh Chitrakar, Ole Gunnar Dahlhaug and Hari Prasad Neopane, “Numerical investigation of the effect of leakage flow through erosion-induced clearance gaps of guide vanes on the performance of Francis turbines”, Engineering Applications of Computational Fluid Mechanics, vol. 12(1), 2018.
  62. Ram Lama, Dadiram Dahal, Saroj Gautam, Nirmal Acharya, Hari.Pd. Neopane and Biraj Singh Thapa,  Numerical investigation on performance and sediment erosion of Francis runner with different guide vane profiles, IOP Conference Series: Journal of Physics: Conf. Series 1042 (2018) 012004 doi :10.1088/1742-6596/1042/1/012004
  63. Biraj Singh Thapa, Ole Gunnar Dahlhaug, Bhola Thapa, “Flow measurements around guide vanes of Francis turbine: A PIV approach”, Renewable Energy (2018), vol. 126, 177-188.
  64. Biraj Singh Thapa, Ole Gunnar Dahlhaug, Bhola Thapa, “Effects of sediment erosion in guide vanes of Francis turbine”, Wear (2017), vol 390–391, 104-112.
  65. Biraj Singh Thapa, Ole Gunnar Dahlhaug and Bhola Thapa, Sediment erosion induced leakage flow from guide vane clearance gap in a low specific speed Francis turbine, Renewable Energy (2017), vol. 107, 253-261.
  66. Sailesh Chitrakar, Hari Prasad Neopane and Ole Gunnar Dahlhaug, Particle Image Velocimetry investigation of the leakage flow through clearance gaps in cambered hydrofoils, Journal of Fluids Engineering, vol. 139, p. 091201, 2017.
  67. Sailesh Chitrakar, Biraj Singh Thapa, Ole Gunnar Dahlhaug and Hari Prasad Neopane, Numerical and experimental study of the leakage flow in guide vanes with different hydrofoils, Journal of Computational Design and Engineering, vol. 4, no. 3, pp. 218-230, 2017.
  68. Ravi Koirala, Hari Prasad Neopane, Oblique Shrestha, Baoshan Zhu, Selection of Guide Vane for Erosion handling in Francis turbine, Renewable Energy, Vol. 112, p. 328-336, 2017.
  69. Ravi Koirala, Bhola Thapa, Hari Prasad Neopane, Baoshan Zhu, A review on flow and erosion in Guide Vanes of Francis turbine, Renewable and Sustainable Energy Reviews, 2016. (Accepted for Publication)
  70. Ravi Koirala, Sailesh Chitrakar, Hari Prasad Neopane, Balendra Chhetri, Bhola Thapa, Computational Design of Bifurcation: A Case Study of Darundi Khola Hydropower Project, Journal of Fluid Machinery and Systems, 2016. (Accepted for publication)
  71. Sailesh Chitrakar, Hari Prasad Neopane, Ole Gunnar Dahlhaug, Study of simulataneous effects of secondary flow and sediment erosion in Francis turbines, Renewable Energy (2016) 1-11. doi:10.1016/j.renene.2016.06.007
  72. Ravi Koirala, Bhola Thapa, Hari Prasad Neopane, Baoshan Zhu, Balendra Chhetry, 2016, Sediment Erosion in Guide Vanes of Francis Turbine: A Case Study of Kaligandaki Hydropower Plant, Nepal, Wear, Vol. 362-363, p. 53-60. doi:10.1016/j.wear.2016.05.013
  73. Ravi Koirala, Baoshan Zhu, Hari Prasad Neopane, 2016, Effect of Guide Vane Clearance Gap on Performance of Francis Turbine, Energies, Vol. 9, No. 4, p. 275. doi:10.3390/en9040275
  74. Biraj Singh Thapa, Chirag Trivedi, Ole Gunnar Dahlhaug, Design and development of guide vane cascade for low speed runner Francis turbine, Journal of Hydrodynamics (2015), HYDRO-D-15-00202
  75. Binaya Baidar, Sailesh Chitrakar, Ravi Koirala, Hari P. Neopane, 2015, Selection of optimal number of Francis runner blades for a sediment laden micro hydropower plant in Nepal, International Journal of Fluid Machinery and Systems (IJFMS), Vol. 8, No. 4 (Oct-Dec) p. 294-303  http://dx.doi.org/10.5293/IJFMS.2015.8.4.294
  76. Khanal Krishna, Neopane Hari. P., Rai Shikhar, Thapa Manoj, Bhatt Subendu, Shrestha Rajendra, 2015, A methodology for designing Francis runner blade to find minimum sediment erosion using CFD, Renewable Energy, Vol. 87, Part 1
  77. Rajkarnikar Bidhan, Neopane Hari. P., Thapa Biraj S., 2015, Comparative study of sediment erosion on alternative designs of Francis runner blade, International Journal of Fluid Machinery and Systems, Vol. 8, No. 3, July-September 2015 ISSN (Online): 1882-9554. doi: 10.5293/IJFMS.2015.8.3.183
  78. Ravi Koirala, Sailesh Chitrakar, Amod Panthee, Hari Prasad Neopane, Bhola Thapa, Implementation of Computer Aided Engineering for Francis Turbine Development, International Journal of Manufacturing Engineering, Volume 2015  http://dx.doi.org/10.1155/2015/509808
  79. Nirmal Acharya, C. G. Kim, Bhola Thapa, Young Ho Lee, ‘Numerical analysis and performance enhancement of a cross-flow hydro turbine, Renewable Energy’, doi:10.1016/j.renene.2015.01.064
  80. Amod Panthee, Bhola Thapa, Hari Prasad Neopane, ‘Quality control in welding repair of Pelton runner, Renewable Energy’, doi:10.1016/j.renene.2014.10.042
  81. Ravi Koirala, Sailesh Chitrakar, Surya Regmi, Manisha Khadka, Hari Prasad Neopane, Bhola Thapa, ‘Analysis of Sediment Samples and Erosion Potential: A Case Study of Upper Tamakoshi Hydropower Project’, Hydro Nepal Journal of Water Energy and Environment, Issue 16, 2015. http://dx.doi.org/10.3126/hn.v16i0.12216    
  82. Anil Kumar Bastola, Hari Prasad Neopane, ‘Mineral Analysis and Erosion Potential of Sediment Samples from Nepalese Hydro Power Plant: A Case Study of Lower Marsyangdi Hydropower Plant’, Journal of Machinery Manufacturing and Automation, Volume 3, Issue 3, pp. 50-55, September, 2014
  83. Chitrakar Sailesh, Cervantes Michel, Thapa Biraj Singh, ‘Fully coupled FSI analysis of Francis turbines exposed to sediment erosion’, International Journal of Fluid Machinery and Systems (IJFMS), Volume 7, Issue 3, July-September, 2014
  84. Niroj Maharjan, Sailesh Chitrakar, Ravi Koirala, 2014, “Design of Reversible Pump Turbine for its prospective application in Nepal“, International Journal of Scientific and Research Publications (IJSRP), Volume 4, Issue 7, July 2014 Edition. 
  85. Balendra Chhetry, Biraj Singh Thapa, Bhola Thapa, 2014, “Assembly design to ease turbine maintenance in sediment – laden conditions”, The International Journal on Hydropower & Dams , Special issue: ASIA 2014- Colombo, Fifth International Conference on Water Resources and Hydropower Development, 2014.
  86. Subash Pant, Manish Lamsal, Bhola Thapa and Biraj S. Thapa, 2014, “Prediction of Turbine Needed for Future Hydopower Projects in Nepal”, HydroNepal Journal of Water, Energy and Environment, ISSN 1998-5452, Issue No. 14, January 2014.
  87. Bidhan Rajkarnikar, Hari P. Neopane, Biraj S. Thapa, 2013, “Development of Rotating Disc Apparatus for test of sediment-induced erosion in Francis runner blades”, An International Journal on the Science and Technology of Friction, Lubrication and Wear.
  88. K.P. Shrestha, Biraj Thapa, Ola Gunnar Dahlhaug, Hari P. Neopane, Nikhel Gurung, Aatmaram Kayastha, 2013, “Optimized Design of Francis Turbine Runner for Sand Laden Water, Hydro Nepal”, Journal of Water, Energy and Environment, ISSN 1998-5452, Issue No. 13.
  89. Hari P. Neopane, Surendra Sujakhu, 2013, “Particle size distribution and Mineral analysis of sediment in Nepalese hydropower plant: A case study of Jhimruk Hydropower Plant”, Kathmandu University Journal of Science, Engineering and Technology, Vol. 9, No. I, July.
  90. Sujakhu Surendra and Neopane Hari P., 2013, “Mineral Analysis of Sediments from Nepalese Hydropower Plants: A Case Study of Sunkoshi and Sundarijal Hydropower Plant”, International Journal of Advance Renewable Energy Research, Vol. 2, No. 3. (Full Paper)
  91. Biraj Singh Thapa, Bhola Thapa, Ole Gunnar Dahlhaug, “Current research in hydraulic turbines for handling sediment” Journal of Energy, in press, doi: j.energy.2012.05.014. (Full Text)
  92. Biraj Singh Thapa, Bhola Thapa, Ole Gunnar Dahlhaug,” Empirical modeling of sediment erosion in Francis turbines”, Journal of Energy(2012), Vol.4, Issue.1,386-391.  (Full Text)
  93. Biraj Singh Thapa, Amod Panthee, Bhola Thapa, “Computational methods in research of hydraulic turbines in challenging enviroments”, International journal of Advanced Renewable Energy Research (2012), Vol.1, Issue. 2, 1-4. (Full Text)
  94. Hari Prasad Neopane, Bhola Thapa and Ole Gunnar Dahlhaug,”Particle velocity measurement in swirl flow, Laboratory studies”, Kathmandu University Journal of Science (February 2012), Engineering and Technology, Volume 8, No.I, Nepal. 
  95. Hari Prasad Neopane, Ole Gunnar Dahlhaug, Michel Cervantes,”The effect of sediment characteristics for predicting erosion on Francis turbines blades”, The International Journal on Hydropower & Dams (February 2012), Volume 19, Issue 1, Hydro & Dams in Latin America, Francis Turbine Technology – Intake Gates. 
  96. Laxman Poudel, Bhola Thapa, Bhim Prasad Shrestha and Nabin Kumar Shrestha, “Sediment Impact on Turbine Material: A Case study of Modi River, Nepal”, Kathmandu University Journal of Sceince, Engineering and Technology Vol.8, No 1, February pp 88-96. 
  97. Laxman Poudel, Bhola Thapa, Bhim Prasad Shrestha and Nabin Kumar Shrestha, “Impact of Sand On Hydraulic Turbine Material: A Case Study of Roshi Khola, Nepal”, Hydro Nepal Journal of Water Energy and Environment Vol 10, January 2012 pp60-65, ISSN 1998-5452.  
  98. Laxman Poudel, Bhola Thapa, Bhim Prasad Shrestha and Nabin Kumar Shrestha, “Sediment Shape Characterization of Sand Particles, Using Digital Image Processing”,International Journal of Engineering Research and Technology (IJERT), Paper Code 16704, Research India Publication.  
  99. Hari Prasad Neopane, Ole Gunnar Dahlhaug, Michel Cervantes,”Sediment Erosion in Hydraulic Turbines”, Global Journal of researches in engineering, Mechanical and mechanics engineering, Volume 11 Issue 6: page 17-26, Version 1.0 November 2011,Type: Double Blind Peer Reviewed International Research Journal, Publisher: Global Journals Inc. (USA), Online ISSN: 2249-4596 & Print ISSN:0975-5861 GJRE (2011).  
  100. Hari Prasad Neopane, Ole Gunnar Dahlhaug,Tri Ratna Bajracharya,”Alternative approach for designing a Francis Turbine for Sand Laden Water”, E-Vision, An annual engineering Journal, department of mechanical engineering, Pulchowk campus, volume 5, page 19-31,2009. 
  101. Bhola Thapa, Raju Shrestha, Projjowal Dhakal, Biraj Singh Thapa,”Sediment in Nepalese Hydropower Projects”, Proc. of International conference on the great Himalayas: Climate, Health, Ecology, Management and Conservation, Kathmandu,Nepal,12-15 January 2003.