I am a Mechanical Engineer researching in the area of Emission Control strategies in Industrial Process, Thermal Management of EVs, Green Welding Consumable Fabrication and so on. I have accomplished 2 strategic projects with the Department of Atomic Energy as a Senior Research Fellow with NIT Trichy.

With respect to the research on emission control strategies in Welding Processes, we were able to develop green welding consumbales with negligible hazardous emissions. Peer reviewed publication and Indian patents were also added to our credit. Our works on Thermal Management of EVs resulted with achieving a Sponsored Research Project funded by ANERT, Government of Kerala worth INR 1.2 Million. In addition to the above, sposored consultancy project worth INR 2 Million was also taken up to develop MSME clusters such as Handloom and Coir for KDISC, Govt. of Kerala. The development of Centralized Vacuum Cleaner for multi storeyed building was yet another highlight of our research team, which was a consultancy project for the Private firm worth INR 0.2 Million.Following to which, a new research laboratory- Energy Research Lab at Marian Engineering College, Kerala , India for our Researches related to EVs and Thermal Management studies.

My areas of Interest are : Occupational Health and Hygiene, Welding Safety, Emission control strategies in Industrial Process, Indoor air Quality, Green Consumable Fabrication, Particulate Matters, Thermal Management of EVs. 

1.      Vishnu BR, Sivapirakasam SP, Mohan S, Rahul M. Investigations on the weld metal properties of nanoparticle-embedded low-fume SMAW electrodes. Transactions of the Indian Institute of Metals. Mar 2023;76(3):675-84. https://doi.org/10.1007/s12666-022-02700-8

 2.    Rahul, M., Sivapirakasam, S.P., Sreejith, M., Vishnu, B.R. and Vijayakumar, K., 2023. Concurrent Reduction of the Fume and Cr (VI) Concentrations of Inhalable and Respirable Particle Using a New Covered Stainless-Steel SMAW Electrode. Journal of Environmental Chemical Engineering, p.111632. DOI:10.1016/j.jece.2023.111632

3.        Kannan, R.R., Sivapirakasam, S.P., Rahul, M., Mohan, S. and Vishnu, B.R., 2023. Effect of Activated Fluxes on the BZC and Cr (VI) Concentration in Stellite Hardfacing Operation. Materials Today Communications, p.107726. DOI:10.1016/j.matpr.2020.01.527

4.      Rahul M, R., Paramashivan, S. S., Mohan, S., & Vishnu BR. (2023). Study on the soluble and insoluble fume and hexavalent chromium emitted from a new covered electrode with micro and nano sized-sodium and potassium titanate–based flux. Environmental Science and Pollution Research, 30(42), 95550-95565. DOI:10.1007/s11356-023-29079-3

5.  Vishnu BR, Paramashivan SS, Mohan S, Albert SK. Effect of substituting fine rutile of the flux with nano TiO2 on the improvement of mass transfer efficiency and the reduction of welding fumes in the stainless steel SMAW electrode. High Temperature Materials and Processes. May 2020 12;39(1):117-23. https://doi.org/10.1515/htmp-2020-0030

6.  Vishnu BR, Sivapirakasam SP, Satpathy KK, Albert SK, Chakraborty G. Influence of nano-sized flux materials in the reduction of the Cr (VI) in the stainless steel welding fumes. Journal of Manufacturing Processes. Augt 2018 1;34:713-20. https://doi.org/10.1016/j.jmapro.2018.07.009

7.  Vishnu BR, Sivapirakasam SP, Satpathy KK, Albert SK, Chakraborty G. Cr6+ reduction in welding fumes by nano composite coatings on stainless steel manual metal arc welding electrodes. Process Safety and Environmental Protection. Feb 2018 1;114:334-46. https://doi.org/10.1016/j.psep.2018.01.003

8. Kannan RR, Sivapirakasam SP, Mohan S, Rahul M, Vishnu BR. Reduction of Cr6+ formation in the stellite hardfacing operation by a novel thin film of zinc coating on a stellite filler rod. Welding in the World. Jan 2023;67(1):21-31. https://doi.org/10.1007/s40194-022-01408-z

9. Rahul M, Sivapirakasam SP, Mohan S, Vishnu BR, Gomes JF. Study on mass concentration and morphology of SMAW fume particles with a new covered electrode using nano-CaTiO3 as an arc stabilizer. Journal of Manufacturing Processes. Dec 2022 1;84:230-9. https://doi.org/10.1016/j.jmapro.2022.10.015

10. Madhusoodhanan R, Paramashivan SS, Mohan S, Vishnu BR, Murali G. Manufacture of low fume welding electrode using synthetic rutile flux material. The International Journal of Advanced Manufacturing Technology. Aug 2022;121(11-12):8197-208. https://doi.org/10.1007/s00170-022-09834-5

11. Rahul M, Sivapirakasam SP, Vishnu BR, Aravind SL, Mohan S. Experimental investigation on gripper force of electrically activated non-contact swirl vane gripper. Materials Today: Proceedings. Jan 2021 1;46:9636-40. https://doi.org/10.1016/j.matpr.2020.07.151

12. Mohan S, Madhusudhanan YK, Salim S, Nikhil R, Vishnu P, Sivapirakasam SP, Vishnu BR. Performance and emission analysis of an internal combustion engine with hydroxy gas assist. Materials Today: Proceedings. Jan 2021 1;46:10043-6. https://doi.org/10.1016/j.matpr.2021.06.096

13. Rao MJ, Sivapirakasam SP, Phanindra KH, Vishnu BR. Prediction and analysis of semi low floor bus driver seat vibrations by using the response surface methodology. International Journal of Heavy Vehicle Systems. Sept 2021;28(3):409-22. https://doi.org/10.1504/IJHVS.2021.117501

14. Joseph A, Mohan S, Kumar CS, Mathew A, Thomas S, Vishnu BR, Sivapirakasam SP. An experimental investigation on pool boiling heat transfer enhancement using sol-gel derived nano-CuO porous coating. Experimental Thermal and Fluid Science. May 2019 1;103:37-50. https://doi.org/10.1016/j.expthermflusci.2018.12.033

15. Kannan RR, Sivapirakasam SP, Vishnu BR, Rahul M, Mohan S. Reduction of hexavalent chromium (Cr6+) in welding fumes during stellite hard facing with GTAW process. Materials Today: Proceedings. Jan 2020 1;27:2052-5. https://doi.org/10.1016/j.matpr.2019.09.057

16. Mohan S, Nair SS, Ajay AV, Saravanan MS, Vishnu BR, Sivapirakasam SP, Surianarayanan M. Corrosion behaviour of ZrO2-TiO2 nano composite coating on stainless steel under simulated marine environment. Materials Today: Proceedings. Jan 2020 1;27:2492-7. https://doi.org/10.1016/j.matpr.2019.09.224

17. Kannan RR, Sivapirakasam SP, Vishnu BR, Rahul M, Balasubramanian KR, Mohan S. A novel activated flux coating method for reducing fumes at breathing zone concentration (BZC) for the stellite hardfacing process. Materials Today: Proceedings. Jan 2021 1;46:9246-51. https://doi.org/10.1016/j.matpr.2020.01.527

18. Rahul M, Sivapirakasam SP, Vishnu BR, Balasubramanian KR, Mohan S. Health issue owing to exposure with welding fumes and their control strategies at the source–A review. Materials Today: Proceedings. Jan 2021 1;46:9239-45. https://doi.org/10.1016/j.matpr.2020.01.516

1.   Indian Patent- A novel flux composition for the stainless steel SMAW electrodes, No. 201741039032

2.   Indian Patent- An Industrial Helmet for welding fume expulsion, No. 201741042166

3.   Indian Patent- Thermal Spray Coating attachment for cylindrical substrate, No. 202041025422

4.   Indian Patent- A Novel Flux Composition for Stainless Steel SMAW Electrodes with Mild Steel Core Wire, No. 202141005994