• Rupasisnghe, C.P. and Ariyawansha, K.T. (2017) “Utilization of Biodiesel for Mechanization
of Small-Scale Paddy Farming Sector in Sri Lanka” 5th International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development (ACEPS-2017) Faculty of Engineering, University of Ruhuna, Sri Lanka 16th March 2017, ISSN2279-1329.
• Gunadasa, H. L. C. K., Awanthi, M. G. G. and C. P. Rupasinghe. (2017) “”Utilization of Plant
Based Waste Materials as Alternatives to Sand in Zeer Pot Refrigerator.””, International Journal of Engineering Research and General Science Volume 5, Issue 2, March-April, 2017, ISSN2091-2730.
• Nagahawatta I.A. *, Rupasinghe C.P. and Gammanpila A.M. (2015) The potential for
biodiesel from algae under Sri Lankan condition, Proceedings of the National Energy
Symposium, 20th November 2015,pp 84.
• Gammanpila, A., Rupasinghe, C. and Subasinghe,S. (2015) Light intensity and photo period effect on growth and lipid accumulation of microalgae Chlorella vulgaris and
Nannochloropsisspfor biodiesel production, ISERD International Conference, Tokyo, Japan, 26th September 2015.
• Gammanpila, A., Rupasinghe, C. and Subasinghe,S. (2015) Cultivation of microalgae;
Chaetoceros calcitrans for biodiesel production as affected by different nitrate concentrations and salinity levels, ISERD International Conference, Tokyo, Japan, 26th September 2015.
• Gammanpila, A.M. Rupasinghe, C.P. and S. Subasinghe (2014) Effect of Nitrogen on growth and oil content of Chlorella vulgaris for biodiesel production. The Young scientist Forum Symposium, 2014, National Science and Technology Commission, Sri Lanka.
• Rupasinghe, C. P., Weerakkody W.A.U.A. and K.H.S.K. Kithsiri, (2014) Evaluation of the
physical damage of green tea leaves influenced by the different post harvest handling
procedures, International Journal of Research In Agriculture and Food Sciences Vol 01. No. 3, pp 15 – 19 ISSN 2311 -2476.
• Ariyawansha, KT., Rupasinghe, CP., Pemasiri, LWS. And S. Weerakkody, 2013 Performance
evaluation of biodiesel produced from different plant oil sources for agricultural power tiller, National Energy Symposium 2013.
• Priyashantha, PMKS and Rupasinghe CP, 2013, Utilization of hybrid energy system for drying paddy, National Energy Symposium 2013.
• Lasanthika, M.M.W, Ammon, T.N. and Rupasinghe C.P. 2012, Effect of potassium nitrate on growth and oil content of micro algae, , International symposium on Agriculture and
Environment, Faculty of Agriculture university of Ruhuna, March, 2013.
• Rupasinghe, CP., Nilangi, TDS and Navaratne, SB. 2012, Determination of Thermophysical
properties of liquid food products using newly designed heat exchanger, International symposium on Agriculture and Environment, Faculty of Agriculture university of Ruhuna, 29th November, 2013.
• Caldera, H.C.S., . Rupasinghe, C.P.and Ammon, T.N., Evaluation of different environmental
condition for growth of micro algae Nannochloropsisspp for biodiesel production, International Conference on the Impact of Climate Change on Agriculture, held in University of Ruhuna, 20th December 2011.
• Prabath, V.M.A., Rupasinghe, C.P. and Rathnayaka, P., Farm Power issues in cattle farming
and performance evaluation of biogas operated generator for portable milking machine,
National Energy Symposium-2011 held in Sri Lanka Sustainable Energy Authority, Ministry of Power and Energy, 13th -14th August 2011.
• Sudusinghe, M.P., Rupasinghe, C.P. and Sandika, A.L., Physical Energy consumption analysis of paddy production system in southern Sri Lanka, National Energy Symposium-2011 held in Sri Lanka Sustainable Energy Authority, Ministry of Power and Energy, 13th -14th August 2011.
• Rupasinghe, C.P., Ariyawansa K.T.and Sudharshana, S.M.D., Comparative Assessment of the suitability of biodiesel with mineral diesel for power tiller operation, National Energy
Symposium-2011 held in Sri Lanka Sustainable Energy Authority, Ministry of Power and
Energy, 13th -14th August 2011.
• Harshani, E.V.G., Gunasena C.P.and Rupasinghe, C.P., Identification and Mapping land use
changes in cinnamon cultivation in part of southern province, Proceedings of the 3rd Joint National Conference on Information technology in Agriculture held in University of Ruhuna, 29th December, 2011.
• Rupasinghe, C.P.,Rasika, H.P.C., Navaratne, S.B., and Boteju, W.L.B. 2010 Evaluation of different flexible laminates for preventing the post processing losses of hygroscopic foods, Seventh Academic Session held in University of Ruhuna, Sri Lanka 17th -18th March 2010.
• Kahandage, PD, Sewwandi, SADH, Rupasinghe, CP and Chandana, PG 2010, Application of geographical information system on tea production in Kamburupitiya DS Division, Journal of the Sri Lanka Association of Geographers, Vol1, No.1, 2010.
• Dharshanika, G.T., Navaratne, S.B. and Rupasinghe, C.P. Influence of particle size of rice flour in manufacturing rice incorporated wheat bread, Sixth Academic Session held in University of Ruhuna, Sri Lanka 25th March 2009.
• Rupasinghe, CP, Weerasinghe KDN, Kumara VGP and KGG Wijesinghe, Comparative
assessment of the quality and quantity parameters of the cinnamon bark oil influenced by the method of processing, Fifth Academic Session held in University of Ruhuna, Sri Lanka 05th March 2008.
• Rupasinghe,CP, Weerasinghe, K.D.N. and K.M.S. Kodikara Selection of the raw material for efficient distillation of cinnamon leaf oil, , Fourth Academic Session held in University of Ruhuna, Sri Lanka 29th January 2007.

• Gunadasa H.L.C.K., Awanthi M.G.G. and Rupasinghe C.P.(2017) Assessing the Suitability of Plant Waste Materials as Alternatives to Sand in Zeer Pot Refrigerator, International Symposium on Agriculture and Environment, Faculty of Agriculture, University of Ruhuna.
• HKSR Sampath, CP Rupasinghe and MGG Awanthi, (2016) Design and Performance Evaluation of an Active Solar Dryer for Cinnamon quills, International Symposium on Agriculture and Environment, Faculty of Agriculture, University of Ruhuna.
• Gammanpila, A., Rupasinghea, C. and Subasinghe,S. (2016) “Optimization of Salinity Level for Growth and Lipid Accumulation of Nannochloropsis sp. for Biodiesel Production” 13th Academic Session, University of Ruhuna, 2016.
• I.A. Nagahawatta, C.P. Rupasinghe and A.M. Gammanpila Evaluation of different culture systems for growing Nannochloropsis spp. to extract algal oil for biodiesel production under Sri Lankan climatic condition, Proceedings of the International Symposium on Agriculture and Environment, ISAE, Faculty of Agriculture, University of Ruhuna, 30th April 2015, pp 09.
• Awanthi, M.G.G. and Rupasinghe, C.P., 2015, Effect of Passive Modified Atmosphere Packaging on Shelf-life extension of Jackfruit (Artocarpus heterophyllus L.) Bulbs, 12th Academic Session, University of Ruhuna, March 2015.
• Awanthi, M.G.G., D.T.H.P. Rathnaweera and Rupasinghe C.P., 2015, Estimation Of Post Harvest Losses Of Selective Marketing Chain In Sri Lanka, 12th Academic Session, University of Ruhuna, March 2015.
• Sandaruwan, H.H.S.U., Rupasinghe, C.P. and Subasinghe, S. 2014, Potential Of Biodiesel Production From Oil Of Sri Lankan Freshwater Algae, Proceedings of Nineteenth International Forestry and Environment Symposium 2014 held in University of Sri Jayawardenapura, October 2014.
• Gunathilaka, K.S.S. and Rupasinghe, C.P. 2014, Potential to Produce Biodiesel from Locally Available Non Utilized Oil Seeds, Proceedings of Eighteenth International Forestry and Environment Symposium 2014 held in University of Sri Jayawardenapura, 10th – 11th January, 2014.
• Ajani, W.G.L., Rupasinghe, C.P., and Ariyawansha, K.T. 2013, Performance testing of newly designed evaporative cooling chambers for preservation of perishable in tropical region, Tenth Academic Session, University of Ruhuna, 20th March 2013.
• Lasanthika, M.M.W, Ammon, T.N. and Rupasinghe, C.P. 2013 Effect of light intensity on dry weight and oil content of micro algae Nanachloropsis, Tenth Academic Session, University of Ruhuna, 20th March 2013.
• Gunasena, C.P., Jayasanka D.K.J. and Rupasinghe C.P. 2012 Comparative study of thermal efficiency in five different fuel wood cook stove for conserving biomass energy sources is Sri Lanka, Proceedings of Seventeenth International Forestry and Environment Symposium 2012 held in University of Sri Jayawardenapura, 16th – 17th November 2012.
• M.P. Sudusinghe, C.P. Rupasinghe and Buddhika, S.A.A., Mapping of physical Energy consumption of paddy production system in southern Sri Lanka, First Annual Science Research Session-2012, held in South Eastern University of Sri Lanka, 28th March 2012.
• H.C.S.Caldera, C.P.Rupasinghe and Ammon, T.N., Comparison of different biodiesel production technologies from micro algae, Proceedings of International Symposium on Agriculture and Environment, held in University of Ruhuna, 9th November 2011.
• Ammon, T.N., C.P.Rupasinghe and Ariyawansha, K.T., (2011) Possibilities of micro algae annochloropsisspp used as a renewable energy source under local conditions, Proceedings of Sixteenth International Forestry and Environment Symposium 2011 held in University of Sri Jayawardenapura, 28-29th October 2011.
• C.P. Rupasinghe, PD. Kahandage and Chandana P. Gunasena, 2011 Identification of site specific management practices for enhancing the paddy production system in Kamburupitiya Divisional Secretariat Division, Sri Lanka, 6th National Extension Education Congress, Society of Extension Education, Agra ICAR Research Complex for Goa, Goa.
• T.N. Ammon, K.T.Ariyawansha and C.P.Rupasinghe, Potential of biodiesel production from sea algae, Proceedings of Fifteenth International Forestry and Environment Symposium 2011 held in University of Sri Jayawardenapura, 26-27th November 2010.
• Vinodika, D.G.R., Rupasinghe, C.P., and Ariyawansha, K.T. 2010 Modification of a cost effective device for manioc slicing, International symposium, Faculty of Agriculture university of Ruhuna, November, 2010.
• Prasangi, R.P.W, Rupasinghe, C.P. and Ariyawansha, K.T. 2010 Comparative Assessment of three different types of driers for drying fruits, International symposium, Faculty of Agriculture university of Ruhuna, November, 2010.
• Ammon, T.N., Rupasinghe, C.P. and Ariyawansha, K.T. 2010 Evaluation of biofuel production from algae, International symposium on Agriculture and Enviorenment, Faculty of Agriculture university of Ruhuna, November, 2010.
• Dharshanika, G.T., Navaratne, S.B. and Rupasinghe, C.P. 2009 Relationship between particle size and quantity of rice flour to be incorporated into rice/ wheat breads, Proceedings of the 65th Annual Session, Sri Lanka Association for the Advancement of Science (SLAAS).
• Ariyawansha, K.T., Sudharshana, S.M.D. and Rupasinghe, C.P. 2009 Potential usage of biodiesel produced from scraped coconut refuse for power tiller operation, 14th International Forestry and Environment Symposium, University of Sri Jayawardanapura, Sri Lanka. 18-19 December, 2009.
• Wanasinghe, C.N.P., Rupasinghe, C.P., Navaratne, S.B. and Ariyawansha, K.T. 2009 Application of rheological properties on quality control of liquid food products, 2nd National symposium, Faculty of Agriculture university of Ruhuna, September, 2009.
• Kahandage, P.D., Rupasinghe, C.P. and Chandana, P.G. Identifying and mapping of land suitability and spatial variability of paddy production system in Kamburupitiya DS division using GIS techniques. National Geography Conference 2009, Department of Geography, University of Peradeniya, 23-24 January, 2009.
• Rupasinghe C.P., Sugathapala.T., and Senadeera. W., 2008. Towards sustainable agriculture through solar drying technologies. National symposium, Faculty of Agriculture university of Ruhuna.
• Rupasinghe CP,2008 Anthropometric consideration of Agricultural tractor seat for Sri Lankan women. National symposium, Faculty of Agriculture university of Ruhuna.
• Kahandage, P.D.,Rupasinghe CP, Chandana, PG, 2008, Mapping the status of paddy production system using GIS technique for developing the decision support system in Kamburupitiya Divisional Secretariat Division, National symposium, Faculty of Agriculture university of Ruhuna.
• Ariyawansha.K.T., Pamasiri L.W.S., WerakkodyS.,andRupasinghe C.P.,2008 Potential of Biodiesel production from scraped coconut refuse for Agricultural tractors. 13th International Forestry and Environment symposium.
• Liyanaarachchi, N., Perera,U.I.P., Rupasinghe,C.P., Sembukutige,P., Srimalee,S.D.P., Warnakulasooriya,M.G.d.k., and Wijethunga,S., Ability to control Angoumois grain moth (Sitrotogacerealella) in paddy storage condition using biogas. 13th International Forestry and Environment Symposium, University of Sri Jayawardanapura, Sri Lanka. 27-28 December, 2008.
• De mel.C.J., Ariyaratne.A.R., and Rupasinghe C.P., 2007 The field performance evaluation of a solar dryer for drying medicinal plants. National symposium, Faculty of Agriculture university of Ruhuna.
• Rupasinghe, CP, Sudusinghe, SJ, Weerasinghe, KDN, 2007,Comparative Assesment of the suitability of raw materials and the bark removing methods for cinnamon bark oil production 12th International Forestry and Environment symposium University of Sri Jayawardanapura, Sri Lanka. 30th November 2007.
• Rupasinghe, C.P., &Jayasooriya H.P.W. (2006) Modification of the design parameters of scoop type rotary tiller blades for reverse rotation, International symposium, Sabaragamuwa University, Belihuloya. 2006.
• Rupasinghe, C.P., & Jayasooriya H.P.W. (2006) Energy saving scoop type rotary tiller for deep tillage, Proceedings of the Symposium on Eleventh annual Forestry and environment held in University of Sri Jayewardenepura, Sri Lanka, 22nd –23rd December 2006.