Mr. VIMUKTHI Vithanage

Mr. Vimukkthi Vithanage (H.V.V. Priyadarshana) completed his B.Sc. Eng. (Hons) Degree in Electrical Engineering from the University of Moratuwa. He worked as an Electrical Engineer in the Solar PV industry for five years with Sun2Earth (Pvt) Ltd and Saw Engineering (Pvt) Ltd. He also worked as a Research Assistant in the Department of Electrical Engineering, University of Moratuwa, with the Smart Grid Research Lab.

He completed his MPhil in Nanotechnology at Sabaragamuwa University of Sri Lanka. Currently, he is working as a Senior Lecturer in the Department of Engineering Technology, Faculty of Technology, Sabaragamuwa University of Sri Lanka.

His research interests include Multi-Agent Systems, Renewable Energy, Microgrids, Solar PV Systems, Solar PV Cooling Systems, Building-Integrated Photovoltaics (BIPV), Heat Transfer Fluids, Nanotechnology, Nanofluids, and Thermal Management Systems.

Associate Member of Sri Lanka Institute of Engineers, Sri Lanka. (AMIE - SL)

Member of Engineering Council Sri Lanka (ECSL)

• Renewable Energies
• Microgrids
• Multi – Agent Systems
• Solar PV systems 
• Solar PV cooling systems 
• Nano Technology
• Nanofluids 
• Heat transfer fluids 
• Smartgrids 
• Floating Solar Systems 
• Solar Tracking Systems 
• Thermal conductivity 
• Photovoltaic thermal Systems
• Engineering Thermodynamics
• Automobile Technology
• Li-ion battery
• EV charging systems 
• Battery cooling systems 
• Nanofluid stability 
• Computational Fluid Dynamics 

• Experimental Study on the Effects of Multifunctional SiO2-Based Nanocomposite Coatings on the Optical, Thermal, and Self-Cleaning Performance of Solar Photovoltaic Modules.
• Development of Hydrophobic Nano-Silica-Based Coatings for Improving the Self-Cleaning and Soiling Resistance of Solar PV Modules.
• Experimental Investigation of Nanofluid-Based Cooling Techniques for Solar Photovoltaic Modules under Tropical Operating Conditions.
• Experimental Investigation of Nanofluid-Based Thermal Management Systems for Lithium-Ion Battery Applications.

Journal Articles

[1] V. Vithanage, A. Induranga, C. Galpaya, A. Indupama, and K. R. Koswattage, "A review on enhancement of solar photovoltaic (PV) system performance with water-based nano-fluid cooling systems," Journal of Thermal Engineering, vol. 11, no. 4, pp. 1245-1260, 2025, doi: 10.14744/thermal.0000974.

[2] V. Vithanage, K. S. Hosan, H. V. Perera, C. Galpaya, A. Induranga, A. Indupama, D. Wijesekara, and K. R. Koswattage, "Impact of water based nanofluids in heat exchanger type active solar PV cooling systems: A comparative CFD analysis," International Journal of Science and Research Archive, vol. 14, no. 1, pp. 1139-1145, 2025, doi: 10.30574/ijsra.2025.14.1.0148.

[3] C. Galpaya, A. Induranga, V. Vithanage, A. Indupama, and K. R. Koswattage, "Comparative study on the thermal properties of engine oils and their nanofluids incorporating fullerene-C60, TiO2 and Fe2O3 at different temperatures," Energies, vol. 17, no. 3, Art. no. 732, 2024, doi: 10.3390/en17030732.

[4] A. Induranga, C. Galpaya, V. Vithanage, and K. R. Koswattage, "Thermal properties of TiO2 nanoparticle-treated transformer oil and coconut oil," Energies, vol. 17, no. 1, Art. no. 49, 2024, doi: 10.3390/en17010049.

[5] A. I. Samarathunga, W. G. C. M. Kulasooriya, H. M. D. U. Sewwandi, V. Vithanage, A. Induranga, B. S. Kumara, and K. R. Koswattage, "Experimental analysis of mechanical property enhancement of paper-pulp-based packaging materials using biodegradable additives," Sustainability, vol. 16, no. 23, Art. no. 10310, 2024, doi: 10.3390/su162310310.

[6] N. Prabhath, B. S. Kumara, V. Vithanage, A. I. Samarathunga, N. Sewwandi, H.-G. H. Damruwan, K. Maduwantha, and K. R. Koswattage, "Investigation of pozzolanic properties of sugarcane bagasse ash for commercial applications," ACS Omega, vol. 8, no. 13, pp. 12052-12061, 2023, doi: 10.1021/acsomega.2c07844.

[7] B. S. Kumara, A. I. Samarathunga, V. Vithanage, N. D. Ranawaka, S. S. Gunwardene, J. Mangala, D. S. Chathuranga, and H. Punchihewa, "Design and development of a bowling machine for effective and efficient cricket batting training," Journal of Mechanical Engineering, vol. 21, no. 1, pp. 61-81, 2024, doi: 10.24191/jmeche.v21i1.25360.

[8] D. K. A. Induranga, C. Galpaya, V. Vithanage, A. Indupama, K. Maduwantha, N. Gunawardana, D. Wijesekara, P. Amarasinghe, H. Nilmalgoda, K. Gunasena, and et al., "Nanofluids for heat transfer: Advances in thermo-physical properties, theoretical insights, and engineering applications," Energies, vol. 18, no. 8, Art. no. 1935, 2025, doi: 10.3390/en18081935.

[9] K. Varadharaja, C. Galpaya, A. Induranga, V. Vithanage, A. Indupama, and K. R. Koswattage, "Analysis of the development and thermal properties of chitosan nanoparticle-treated palm oil: An experimental investigation," Nanomaterials, vol. 15, no. 13, Art. no. 972, 2025, doi: 10.3390/nano15130972.

[10] G. D. C. P. Galpaya, M. D. K. M. Gunasena, D. K. A. Induranga, V. Vithanage, A. Indupama, D. Wijesekara, M. I. Ishra, M. M. M. G. P. G. Mantilaka, and K. R. Koswattage, "Nanoparticle-enhanced engine oils for automotive applications: Thermal conductivity and heat capacity improvements," Molecules, vol. 30, no. 13, Art. no. 2695, 2025, doi: 10.3390/molecules30132695.

[11] D. Wijesekara, P. Amarasinghe, A. Induranga, V. Vithanage, and K. R. Koswattage, "Energy, exergy, and environmental impact analysis and optimization of coal-biomass combustion combined cycle CHP systems," Sustainability, vol. 17, 2025, doi: 10.3390/su17062363.

[12] M. D. K. M. Gunasena, G. D. C. P. Galpaya, C. J. Abeygunawardena, D. K. A. Induranga, V. Vithanage, S. S. Millavithanachchi, P. K. G. S. S. Bandara, and K. R. Koswattage, "Advancements in bio-nanotechnology: Green synthesis and emerging applications of bio-nanoparticles," Nanomaterials, vol. 15, no. 7, Art. no. 528, 2025, doi: 10.3390/nano15070528.

[13] H. Perera, S. Hosan, D. Wijesekara, V. Vithanage, and K. Koswattage, "Development and characterization of a biodegradable pH indicator film using plant-based pigments," International Journal of Environment, Engineering & Education, vol. 7, no. 1, 2025.

Conference Papers

[14] V. Vithanage, K. S. Hosan, C. Galpaya, A. Induranga, A. Indupama, and K. R. Koswattage, "A comparative CFD analysis for a nano-fluid based heat exchanger type active solar PV cooling system," in Proc. 14th Annual Research Session, Sabaragamuwa University of Sri Lanka, Dec. 2024.

[15] V. Vithanage, A. Induranga, C. Galpaya, A. Indupama, and K. R. Koswattage, "Influence of TiO2 nanoparticle concentration on thermal conductivity of TiO2/water nanofluid," in Proc. 13th Annual Research Session, Sabaragamuwa University of Sri Lanka, Dec. 2023.

[16] C. Galpaya, A. I. S. Abejeewa, V. Vithanage, and K. R. Koswattage, "Experimental study on thermal conductivity, thermal diffusivity, and viscosity of MgO:Graphite nanocomposite-engine oil nanofluid," in Proc. International Conference on Emerging Technologies (ICET 2025), Sabaragamuwa University of Sri Lanka, Apr. 2025.

[17] P. A. I. S. Abejeewa, V. Vithanage, C. Galpaya, A. Induranga, V. Kirthika, H. A. M. P. Hansini, W. A. Lakshitha Madhushan, L. Bhagya, H. I. D. Pubudunee, and K. R. Koswattage, "Bio-derived Kata Kela (Bridelia retusa) trunk dye and metal oxide nanostructures for dye-sensitized solar cells: A preliminary study," in Proc. International Conference on Emerging Technologies (ICET 2025), Sabaragamuwa University of Sri Lanka, Apr. 2025.

[18] I. Sandun, V. Vithanage, C. Galpaya, A. Induranga, V. Kirthika, H. A. M. P. Hansini, W. A. Lakshitha Madhushan, L. Bhagya, H. I. D. Pubudunee, and K. R. Koswattage, "Bio-derived Kata Kela (Bridelia retusa) trunk dye and metal oxide nanostructures for dye-sensitized solar cells: A preliminary study," in Proc. International Conference on Emerging Technologies (ICET 2025), Sabaragamuwa University of Sri Lanka, Apr. 2025.

[19] D. Chathuranga, H. M. D. U. Sewwandi, A. Indupama, V. Vithanage, and K. R. Koswattage, "Experimental study on enhancing mechanical, thermal properties and biodegradability of paper pulp-based packaging materials," in Proc. International Conference on Emerging Technologies (ICET 2025), Sabaragamuwa University of Sri Lanka, Apr. 2025.

[20] G. Thanesvaran, N. Kinchchalar, R. Jeemas Jelson, K. Piriyankan Wijekoon, S. Elilan, V. Vithanage, P. A. I. S. Abejeewa, C. N. Kariyawasam, and K. R. Koswattage, "Experimental analysis of optimal cleaning methods for natural soiling on solar PV modules using FTIR spectroscopy," in Proc. International Conference on Emerging Technologies (ICET 2025), Sabaragamuwa University of Sri Lanka, Apr. 2025.

[21] R. Jeemas Jelson, G. Thanesvaran, K. Piriyankan Wijekoon, N. Kinchchalar, S. Elilan, V. Vithanage, P. A. I. S. Abejeewa, C. N. Kariyawasam, and K. R. Koswattage, "An experimental study on performance degradation of solar PV systems caused by natural soiling: A case study in Belihuloya, Sri Lanka," in Proc. International Conference on Emerging Technologies (ICET 2025), Sabaragamuwa University of Sri Lanka, Apr. 2025.

[22] A. Induranga, C. Galpaya, V. Vithanage, A. Indupama, and K. R. Koswattage, "Thermo-physical characteristics of reduced graphene oxide incorporated enhanced transformer oil nanofluids," in Proc. Conference on Technological Advances and Innovations (TechInn 2024), University of Jaffna, Sri Lanka, Oct. 2024.

[23] C. Galpaya, V. Vithanage, A. Induranga, A. Indupama, and K. R. Koswattage, "Influence of TiO2 and fullerene-C60 nanoparticles content on thermo-physical properties of lubricant oil," in Proc. Conference on Technological Advances and Innovations (TechInn 2024), University of Jaffna, Sri Lanka, Oct. 2024.

[24] A. Indupama, V. Vithanage, C. Galpaya, A. Induranga, C. M. Kulasooriya, and K. R. Koswattage, "An investigation into the impact of blade pitch on the hydrodynamic characteristics of a variable pitch propeller using computational fluid dynamics (CFD)," in Proc. Conference on Technological Advances and Innovations (TechInn 2024), University of Jaffna, Sri Lanka, Oct. 2024.

[25] V. Vithanage, N. M. Weerakkodi, M. G. K. Subodha, P. A. M. Gunathilaka, D. M. S. K. Deniyawaththa, P. L. L. P. U. Alwis, G. D. C. P. Galpaya, D. K. A. Induranga, A. Indupama, and K. R. Koswattage, "Experimental analysis of performance enhancement in polycrystalline photovoltaic panels incorporated with closed-loop active water-cooling system," in Proc. Conference on Technological Advances and Innovations (TechInn 2024), University of Jaffna, Sri Lanka, Oct. 2024.

[26] D. M. K. M. Dissanayaka, G. P. Rajapaksha, D. N. Senanayake, et al., V. Vithanage, "Prototype development of overhead high-voltage power transmission line inspection robot," in Proc. Conference on Technological Advances and Innovations (TechInn 2024), University of Jaffna, Sri Lanka, Jul./Oct. 2024.

[27] R. M. S. L. Bandara, K. G. Dilanjana, J. P. K. G. Jayaweera, et al., V. Vithanage, "An experimental study on efficiency enhancement of floating solar PV systems in Sri Lanka," in Proc. Conference on Technological Advances and Innovations (TechInn 2024), University of Jaffna, Sri Lanka, Jul. 2024.

[28] C. B. G. A. Chathuranga, K. W. R. S. Premachandra, G. Sujeewan, et al., V. Vithanage, "An experimental study to enhance the efficiency of ground mounted solar PV systems using solar tracking technology," in Proc. Conference on Technological Advances and Innovations (TechInn 2024), University of Jaffna, Sri Lanka, Jul. 2024.

[29] W. N. M. Weerakkodi, M. G. K. Subodha, P. A. M. Gunathilaka, et al., V. Vithanage, "An experimental study on the relationship between the operating temperature and electrical efficiency of solar photovoltaic panels," in Proc. Conference on Technological Advances and Innovations (TechInn 2024), University of Jaffna, Sri Lanka, Jul. 2024.

[30] K. Varadharaja, C. Galpaya, A. Induranga, S. J. W. A. Sajiwanie, N. M. Hettiarachchi, V. Vithanage, and K. R. Koswattage, "A study on the thermal properties of palm oil-based nanofluids by incorporating chitosan nanoparticles derived from oyster mushrooms," in Proc. Conference, Jul. 2024.

[31] V. Vithanage, A. Induranga, C. Galpaya, A. Indupama, and K. R. Koswattage, "Effect TiO2 nanoparticles on the thermal properties of engine oil: An experimental investigation," in Proc. 13th Annual Research Session, Sabaragamuwa University of Sri Lanka, Dec. 2023.

[32] A. Induranga, C. Galpaya, V. Vithanage, and K. R. Koswattage, "Experimental and theoretical investigation of thermal properties of TiO2/transformer oil nanofluids," in Proc. 13th Annual Research Session, Sabaragamuwa University of Sri Lanka, Dec. 2023.

[33] A. Indupama, V. Vithanage, L. Priyankara, and K. R. Koswattage, "Performance analysis of heating blower for conveyor dryer using computational fluid dynamics," in Proc. 13th Annual Research Session, Sabaragamuwa University of Sri Lanka, Dec. 2023.

[34] A. Indupama, C. M. Kulasooriya, V. Vithanage, and K. R. Koswattage, "An experimental analysis on enhancement of mechanical properties of paper pulp-based packaging materials using biodegradable additives," in Proc. 13th Annual Research Session, Sabaragamuwa University of Sri Lanka, Dec. 2023.

[35] A. Induranga, C. Galpaya, V. Vithanage, and K. R. Koswattage, "A conceptual overview: Integration of bi-directional electric vehicle (EV) chargers for effective peak grid demand management in Sri Lanka," in Proc. 2023 Moratuwa Engineering Research Conference (MERCon), Moratuwa, Sri Lanka, 2023, doi: 10.1109/MERCon60487.2023.10355528.

[36] V. Vithanage, K. T. M. U. Hemapala, W. D. A. S. Wijayapala, V. Saravanan, and M. A. Kalhan S. Boralessa, "Developing multi-agent based micro-grid management system in JADE," in Proc. 2019 2nd International Conference on Power and Embedded Drive Control (ICPEDC), 2019, doi: 10.1109/ICPEDC47771.2019.9036562.

[37] M. K. Perera, R. U. I. Disanayaka, E. M. C. S. Kumara, W. M. C. S. B. Walisundara, V. Vithanage, E. M. A. G. N. C. Ekanayake, and K. T. M. U. Hemapala, "Multi agent based energy management system for microgrids," in Proc. 2020 IEEE 9th Power India International Conference (PIICON), Feb. 2020, doi: 10.1109/PIICON49524.2020.9113021.

[38] V. Vithanage, W. K. I. Madushanaka, L. L. L. Anuruddha, G. T. Chathura, H. W. D. Hettiarachchi, and K. T. M. U. Hemapala, "Multi-agent controlled building management system," in Proc. 2017 Innovations in Power and Advanced Computing Technologies (i-PACT), Apr. 2017, doi: 10.1109/IPACT.2017.8244900.

• Senate  Research  Committee Grant, University of Moratuwa

             Awarded for Best Final Year Design Project – 2017

• Award on the 28th university day, Sabaragamuwa University of Sri Lanka

           Gold medal for publications in Q1 journals - 2023

• Award on the 29th university day, Sabaragamuwa University of Sri Lanka

           Best Researcher : Faculty of Technology - 2024

• Award on the 30 th university day, Sabaragamuwa University of Sri Lanka

           Gold medal for publications in Q1 journals - 2025

Certificate Course in Teaching in Higher Education, Sabaragamuwa University of Sri Lanka

International Exposure Program on Modern Automotive Technology, Asian Institute of Technology (AIT), Thailand

• ET 42043    –  Industrial Installations

• ET 41043    –  Building Services  

• ET 41072    –  Modern Automotive Technology  

• ET 41016    –  Integrative Product Design and Research Project

• ET 31013    –  Electrical Machines

• ET 31033    –  Automotive Electronics 

• ET 21012    –  Automobile Technology 

• ET 12052    –  Mathematics 

• ET 11080    –  Creative Mini Project

• ET 11080    –  Engineering drawing and Computer Aided Drafting

• BST 12031 –  Renewable Energy Systems

Sri Lanka National Colours – Baseball
Represented Sri Lanka in Baseball at international level and was awarded National Colours in recognition of national representation.