Dr. L.K.T.Srimal
Senior Lecturer
Dr.Eng (Saitama, Japan) M.Eng. (Moratuwa, SL) B.Sc. Eng (Moratuwa, SL) AMIE(SL)
Contact info
+94 912245765/6/7
+94 770441574
srimal@mme.ruh.ac.lk
5132
Specialization
Manufacturing Engineering
Educational Qualifications
- Doctor of Engineering (Dr.Eng.)
- Specialization: Optical Sensing
- Master of Engineering (M.Eng.)
- Specialization: Manufacturing Systems Engineering
- Bachelor of the Science of Engineering (Honors) ( B.Sc. Eng.(Hons))
- Specialization: Materials Engineering
Professional Qualifications
- AWS Certified Welding Inspector, Welding Research Institute (WRI) of Bharat Heavy Electrical Limited, India.
- Certified QMS Internal Auditor, LLOYD’S Register Quality Assurance.
- Japanese for Civil and Environmental Engineers I/II, Department of Civil and Environmental Engineering, Saitama University, Japan.
- Certificate Course in Professional Development in Higher Education (CCPDHE), University of Ruhuna, Sri Lanka.
Professional Experience
- Senior Lecturer Grade I, Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, University of Ruhuna, Sri Lanka. (31st December 2021- to date).
- Head of Department and Senior Lecturer Gr. I, Department of Mechanical Engineering, South Eastern University Sri Lanka, Oluvil (Sabbatical leave appointment/ September 2024 – to September 2025)
- Senior Lecturer Grade II attached to the Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, University of Ruhuna, Sri Lanka. (October 2015 – to December 2021)
- Lecturer, Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, University of Ruhuna, Sri Lanka. (May 2008– October 2015)
- Head of Steel Band Division, Loadstar (Pvt.) Ltd, Ja-Ela, Sri Lanka (October 2005 – October 2007)
- Engineering Trainee, Elastomeric Technologies (Pvt.) Ltd., Piliyandala, Sri Lanka (January 2004 – June 2004)
Professional Assignments
- Chief Examiner of GCE A/L paper marking for Engineering Technology Stream (2021).
- Member of the Master Thesis Evaluation Panel – Department of Materials Engineering, University of Moratuwa, Sri Lanka (January 2016 to date).
- Technical Programme Committee Member of the Technical conference of Young Members’ Section(YMS) – The Institution of Engineers, Sri Lanka (IESL), October 2021.
- Curriculum Development Committee Member of Faculty of Technological studies, Uwa Wellassa University, Budulla, Sri Lanka.
- Co-opted executive committee member, IESL Southern Chapter.
- Head of Department, Department of Mechanical Engineering, South Eastern University Sri Lanka, Oluvil, Sri Lanka. (09.2024-09.2025).
- Chairman of the Department Quality Assurance Cell (DQAC) hence representing faculty quality assurance cell (2022 – 2024).
- Senior Treasurer, “Engineering Faculty Students’ Union” (2019 – 2024).
- Senior Treasurer, “Engineering Faculty Scholarship Foundation” (2019 – 2024).
- Senior Treasurer, “Ruhuna Engineering Student Chapter of the IESL” (2019 – 2023).
- Senior Treasurer, “Ruhuna Engineering Faculty Welfare Foundation”, (2022 – 2024).
- Treasure, Ruhuna Engineering Faculty Teacher’s Association, (2023).
- Laboratory In-charge, Manufacturing Engineering Laboratory, University of Ruhuna (2015 to 2022).
- Academic Advisor, Faculty of Engineering – Provide academic related guidance to needy students (05.2008 to date).
- Students Counselor, Faculty of Engineering (2019 -2020).
- Departmental Representative, Organizing committee Annual Research Sessions 2019 (ARS-2019), (2019).
- Safety Coordinator, Department of Mechanical and Manufacturing Engineering (2015 – 2022).
- Manager, Learning Management System (LMS) of Department of Mechanical and Manufacturing Engineering, (2022 – 2025).
- Coordinator – Arrange three (03) Scholarships for financially needy students with the support of University of Moratuwa 2001 alumni graduates.
- Tsunami Data Collection (December 2004): Undertook visit to Hambantota tsunami-affected regions, data collection on children impacted by the disaster in collaboration with the National Child Protection Authority of Sri Lanka, represented University of Moratuwa.
Research Interest
- Manufacturing Engineering
- Joining of Materials (Welding processes)
- Biomedical Optics (Functional Optical Coherence Tomography:fOCT)
- Mechanical Behavior of Materials
- Polymer Engineering
Teaching Areas
- Introduction to Material Science and Manufacturing Engineering (Module Teacher 2008 to now)
- Metallurgy for Engineers (Module Coordinator and Teacher 2008 to now)
- Polymer Technology (Module Coordinator and Teacher 2008 to 2015)
- Strength of Materials (Module Coordinator and Teacher 2008 to now)
- Solid Mechanics (Module Coordinator and Teacher 2015 to now)
- Manufacturing Engineering (Module Coordinator and Teacher 2008 to now)
- Non-Destructive Testing Applications (Module Founder, Coordinator and Teacher from 2021 onwards)
- Manufacturing Processes and Practices (Module Founder, Coordinator and Teacher 2018 to now)
Honors and Awards
- Post-graduate supervisor awards 2023, the National Science Foundation, Sri Lanka.
- Monbukagakusho (MEXT) Scholarship granted by the government of Japan to pursue doctoral degree.
- JGC-S foundation scholarship (Merit base) for doctoral studies
- Lanka Ceramics Limited awards for the Materials Engineering student who has obtained the highest-Grade Point Average at the B.Sc. Engineering Examination.
- Mahapola (Merit) Scholarship granted by the government of Sri Lanka to pursue B.Sc. Engineering degree.
- Educational cooperation scholarship granted by the Education Employees Cooperative Thrift and Credit Society to pursue B.Sc. Engineering degree.
- Price for the 3A’s at G.C.E. (A/L) Examination 2000, annual price giving 2001, Rahula Collage, Matara.
Memberships
- Associate Member (AM9070) of Institute of Engineers Sri Lanka (IESL).
- Member of Institute of Materials Engineers (IME).
- Student Member of the Japan Society of Applied Physics (JSAP).
Patents and Publications
International Journal papers (Scientific):
- Srimal, L. K. T., Rajagopalan, U. M., Kadono, H., & Yonekura, T. (2025). Visualizing changes in internal layers of Chinese chives leaf under short-term ozone exposure with biospeckle optical coherence tomography. Journal of the National Science Foundation of Sri Lanka, 53(3), 245–258. https://doi.org/10.4038/jnsfsr.v53i3.12649
- Sudarshana, W. S. A., Srimal, L. K. T., & Gallage, R. (2025, April). Production of coir fibre-reinforced natural rubber composite using vacuum-assisted resin transfer moulding (VARTM) process for roofing insulation applications in buildings. Engineer, 58(2). https://doi.org/10.4038/engineer.v58i2.7689
- Chamath, L. G., Srimal, L. K. T., Sewvandi, G. A., Gallage, R., & Epaarachchi, J. (2025). Optimizing the alkaline concentration for coir fibre treatment and estimation of lifetime. Journal of the National Science Foundation of Sri Lanka, 52(4). https://doi.org/10.4038/jnsfsr.v52i4.12098
- Chamath, L. G., Srimal, L. K. T., & Sewvandi, G. A. (2024). Assessment of transverse thermal conductivity of coir fibre using experimental, analytical, and numerical methods. Journal of the National Science Foundation of Sri Lanka, 51(1). https://doi.org/10.4038/jnsfsr.v51i1.10870
- Srimal, L. K. T., Rajagopalan, U. M., & Kadono, H. (2014). Functional optical coherence tomography (fOCT) biospeckle imaging to investigate response of plant leaves to ultra-short term exposure of ozone. Journal of Physics: Conference Series, 605, 012013. https://doi.org/10.1088/1742-6596/605/1/012013
Conference Papers :
- Sudarshana, W. S. A., Srimal, L. K. T., & Gallage, R. (2025, October). Numerical simulation and analytical calculation of heat transfer in a roof assembly with coir-fiber reinforced natural rubber composite insulation. In Proceedings of the 3rd International Engineering Research Symposium 2025 (IERS 2025), Colombo, Sri Lanka.
- Sudarshana, W. S. A., Srimal, L. K. T., Gallage, R., & Kumara, P. D. C. (2025). Numerical simulation of temperature distribution in a scaled-down test hut with coir fiber reinforced natural rubber composite insulating materials using computational fluid dynamics. In Proceedings of the 4th International Research Conference of the Institute of Technology, University of Moratuwa (ITUM-IRC 2025).
- Sudarshana, W. S. A., Gallage, R., & Srimal, L. K. T. (2024). Numerical simulation and VARTM process for manufacturing of coir mats. In Proceedings of the SLIIT International Conference on Engineering and Technology, SICET 2024 (pp. 126–134).
- Sudarshana, W. S. A., Srimal, L. K. T., & Gallage, R. (2024). Use of coir fiber-reinforced natural rubber composites for roofing insulation: A review. In Proceedings of the 3rd International Research Conference, Research Unit, Institute of Technology, University of Moratuwa (ITUM-IRC 2024).
- Chamath, L. G., Srimal, L. K. T., & Sewvandi, G. A. (2022). Evaluating the thermal conductivity of three-phase insulation composite using analytical and numerical methods. In Proceedings of Moratuwa Engineering Research Conference 2022. Institution of Electrical and Electronics Engineers. https://ieeexplore.ieee.org/xpl/conhome/9906100/proceeding
- Chamath, L. G., Srimal, L. K. T., & Sewvandi, G. A. (2021). Determination of transverse thermal conductivity of coir fibres by analytical methods. In Proceedings of the IESL Young Members Section Technical Conference 2021. Institution of Engineers Sri Lanka (IESL), Colombo, Sri Lanka.
- Chamath, L. G., Srimal, L. K. T., & Sewvandi, G. A. (2020). Effect of alkaline concentration on the surface properties of coir fibers. In Proceedings of the National Engineering Research Symposium (Vol. 1, p. 10). https://doi.org/10.13140/RG.2.2.36167.37283
- Srimal, L. K. T., Rajagopalan, U. M., & Kadono, H. (2014, August). Optical coherence tomography (OCT) biospeckle signal analysis to investigate response of plant leaves to ozone. In Proceedings of the 23rd Congress of International Commission for Optics (ICO23), Santiago de Compostela, Spain, 26–29 August 2014.
- Srimal, L. K. T., Kadono, H., & Rajagopalan, U. M. (2013, May). Optical coherence tomography biospeckle imaging for fast monitoring varying surface responses of a plant leaf under ozone stress. In Proceedings of the Sensing Technologies for Biomaterial, Food, and Agriculture 2013 (Vol. 8881, pp. 96–101). SPIE.
Conference Presentations :
- Udayakumara, D. G. G. V., De Silva, I. R., Chamath, L. G., Srimal, L. K. T., & Gallage, R. (2022, March 2). Design and fabrication of a system to measure thermal conductivity of compressible materials. In 19th Academic Sessions 2021, Faculty of Technology, University of Ruhuna, Matara, Sri Lanka (Abstract presented as poster, ID042).
- Wickramarathna, W. L. N., Wickramasinghe, W. D. S., Gallage, R., & Srimal, L. K. T. (2022, March 2). Design and manufacturing of soral cement base sheets by considering the orientation, size and shape of the additives. In 19th Academic Sessions 2021, Faculty of Technology, University of Ruhuna, Matara, Sri Lanka (Abstract presented as poster, ID032).
- Chamath, L. G., Srimal, L. K. T., & Sewvandi, G. A. (2021, October 9). Determination of transverse thermal conductivity of coir fibres by analytical methods. In IESL Young Members Section Technical Conference 2021, Institution of Engineers Sri Lanka (IESL), Colombo, Sri Lanka (Poster presentation, Paper No. 145).
- Rohan, E. P., Sumith, B., & Srimal, L. K. T. (2021, March 3). Analysis of emissions of a CI engine at varying load conditions with diesel blended liquid fuel extracted from waste polypropylene. In 18th Academic Sessions 2021, Faculty of Medicine, University of Ruhuna, Matara, Sri Lanka (p. 38).
- Chamath, L. G., Srimal, L. K. T., & Sewvandi, G. A. (2020, December 10). Effect of alkaline concentration on the surface properties of coir fibers. In National Engineering Research Symposium 2020, National Engineering Research and Development Centre of Sri Lanka, Ja-Ela, Sri Lanka (Paper No. NERS_022MT).
- Samarakoon, S. R. K. B., Ananda, K. W. M. S. T. S., Gallage, R., & Srimal, L. K. T. (2020, October 9). Design and manufacturing of fiber-cement sheet using rolling machine. In 7th Annual Research Symposium 2020, Faculty of Engineering, University of Ruhuna, Galle, Sri Lanka (Paper No. ARS 2020-P09).
- Delumgahawatta, C. K., Prasad, A. M., Srimal, L. K. T., & Gallage, R. (2020, October 9). Design and fabrication of dust extractor for angle grinder in small-scale carpenter shop. In 7th Annual Research Symposium 2020, Faculty of Engineering, University of Ruhuna, Galle, Sri Lanka (Paper No. ARS 2020-P10).
- Rohan, E. P., Sumith, B., & Srimal, L. K. T. (2020, March 4). An investigation of the internal combustion (IC) engine performance with diesel blended liquid fuel extracted from waste polyethylene. In 17th Academic Sessions 2020, Faculty of Humanities and Social Sciences, University of Ruhuna, Matara, Sri Lanka (p. 48).
- Rohan, E. P., Sumith, B., & Srimal, L. K. T. (2019, January 30). Analysis of CI engine performance with waste polypropylene derived fuel blended with diesel. In Ruhuna International Science & Technology Conference (RISTCON 2019), University of Ruhuna, Matara, Sri Lanka (p. 65).
- Rohan, E. P., Sumith, B., & Srimal, L. K. T. (2018, February 1–2). Conversion of waste polypropylene into hydrocarbon fuel: Analysis of the effect of set temperature on reaction time and liquid yield. In 2nd International Research Symposium, Uva Wellassa University, Badulla, Sri Lanka (p. 224).
- Rohan, E. P., Sumith, B., & Srimal, L. K. T. (2018, March 7). Conversion of waste polypropylene into hydrocarbon fuel: Analysis of combustion ability of yield hydrocarbon in direct injection internal combustion engine. In 15th Academic Sessions 2018, Faculty of Fisheries and Marine Sciences & Technology, University of Ruhuna, Matara, Sri Lanka (p. 86).
- Karunarathna, D. C. G., Rathnayake, K. M. T. M. K., Gallage, R., & Srimal, L. K. T. (2019). Design and manufacturing of electrocoagulation-based domestic water purification system. In Symposium on Advanced Functional Materials (AMCEHA-2019), Jaffna, Sri Lanka (p. 130).
- Srimal, L. K. T., Bandara, W. M. I. R. A., & Afzal, S. L. M. (2019, May 9). Development of herbal soap by palm oil (continuation). In 6th Annual Research Symposium 2019, Faculty of Engineering, University of Ruhuna, Hapugala, Galle, Sri Lanka.
- Jayaweera, S. P., Jayan, K. L. H., Fernando, A. A. S., Srimal, L. K. T., Gallage, R., & Gunawardhana, S. D. (2018, January 4). Design and fabrication of an attachment unit for the X-ray tube to facilitate scanning of different samples. In 5th Annual Research Symposium 2018, Faculty of Engineering, University of Ruhuna, Hapugala, Galle, Sri Lanka (Paper No. ARS 2018-M20).
- De Silva, P. T. S., Dissanayake, D. M. Y. N., Senanayake, N. R., Ranjan, M. T., Srimal, L. K. T., & Gallage, P. G. C. R. (2018, January 4). Domestic cost-effective water purifier. In 5th Annual Research Symposium 2018, Faculty of Engineering, University of Ruhuna, Hapugala, Galle, Sri Lanka (Paper No. ARS 2018-M22).
- Chathuraka, M. N., Jayadeve, S. A. D. L., Rifad, I. L. M., Srimal, L. K. T., Gallage, R., & Pathmasiri, T. K. K. S. (2017, January 5). Development of a herbal soap by palm oil. In 4th Annual Research Symposium 2017, Faculty of Engineering, University of Ruhuna, Galle, Sri Lanka (Paper No. ARS 2017-M03).
- Priyadarshani, K. A. M., Marawanagoda, R. C., Sirajulhasan, A., Srimal, L. K. T., Sumith, B., & Gallage, R. (2017, January 5). Development of coir mat for thermal insulation purposes. In 4th Annual Research Symposium 2017, Faculty of Engineering, University of Ruhuna, Galle, Sri Lanka (Paper No. ARS 2017-M04).
- Wickramarathne, G. T., Thiviyanesan, K., Thajivan, S., Tenis, R. M. T., Srimal, L. K. T., & Gallage, R. (2017, January 5). Low-cost, environment-friendly, user-friendly domestic water purification system to chronic kidney disease affected areas of Sri Lanka. In 4th Annual Research Symposium 2017, Faculty of Engineering, University of Ruhuna, Galle, Sri Lanka (Paper No. ARS 2017-M16).
- Lahiru, A. M., Srimal, L. K. T., Karunasena, H. C. P., & Sumith, B. (2016, March 2). Value addition for coir fiber as an oil absorbent material. In 13th Academic Sessions 2016, Faculty of Agriculture, University of Ruhuna, Matara, Sri Lanka (Paper No. ENG-16-AS2015).
- Srimal, L. K. T., & Sumith, B. (2015, March). Value addition for coir fiber as low temperature insulation material. In 12th Academic Sessions 2015, University of Ruhuna, Matara, Sri Lanka.
- Srimal, L. K. T., & Kadono, H. (2014, September 17–20). Functional optical coherence tomography (fOCT) based on biospeckle to monitor environmental stresses on plants. In JSAP-OSA Joint Symposia, The 75th Autumn Meeting of The Japan Society of Applied Physics, Sapporo Campus, Hokkaido University, Japan (Extended abstract, Paper No. 18p-C4-4).
- Srimal, L. K. T., Kadono, H., & Yonekura, T. (2013, November 12–14). OCT biospeckle imaging to investigate response of plant leaves to ozone. In Optics & Photonics Japan 2013, Nara New Prefectural Public Hall, Nara Kasugano-City, Japan (Proceeding paper, Paper No. 12pA4).
- Srimal, L. K. T., Kadono, H., & Yonekura, T. (2013, September 16–20). Ozone stress monitoring of plants based on OCT biospeckle imaging: 2nd report. In The 74th Autumn Meeting of The Japan Society of Applied Physics, Kyotanabe Campus, Doshisha University, Japan (Extended abstract, Paper No. 17p-C1-6).
- Srimal, L. K. T., Kadono, H., & Rajagopalan, U. M. (2013, April 23–26). Optical coherence tomography biospeckle imaging for fast monitoring varying surface responses of a plant leaf under ozone stress. In International Conference on Sensing Technologies for Biomaterial, Food, and Agriculture 2013 (SPIE SeTBio 2013), Pacifico, Yokohama, Japan (Proceeding paper, Paper No. SeTB3-16).
- Srimal, L. K. T., & Kadono, H. (2013, March 27–30). Monitoring plant leaf response under ozone stress based on OCT biospeckle signal. In The 60th Spring Meeting of The Japan Society of Applied Physics, Kanagawa Institute of Technology, Japan (Extended abstract, Paper No. 29a-A2-8).
Theses :
- L. K. T. Srimal, H. Kadono, M. Miwa and N. Yoshikawa, “Development of functional optical coherence tomography (fOCT) for monitoring environmental effects on plants”, Doctor of Engineering, Graduate School of Science and Engineering, Saitama University, Japan, March 2015.
- L. K. T. Srimal, M. A. R. V. Fernando, and B. Sumith, “Value addition for coir fiber as thermal insulation material”, Master of Engineering, Department of Mechanical Engineering, University of Moratuwa, Sri Lanka, March 2014.
- L. K. T. Srimal, S. H. G. Punchihewa, and V. S. C. Weragoda, “Design and construction of a system for measurement of thermal parameters of polymer under variable conditions”, B.Sc. Engineering, Department of Materials Engineering, University of Moratuwa, Sri Lanka, September 2005.
Vacancies for Postgraduate studies under supervision
| Full-time or part-time MPhil and PhD opportunities are available in research areas such as: Bio-medical Imaging, Insulation Composites, Natural Fibre Composites, or any other Mechanical, Manufacturing, Materials Engineering related areas. |





















