P.VIGNESHWARAN

I am , completed my Full time Ph.D under the guidance of , Professor, Department of Mechanical Engineering, National Institute of Technology, Tiruchirappalli, Tamilnadu, India by July 2020. Currently I am working as a Postdoctoral Fellow (PDF) under the mentorship of , Assistant Professor, Department of Thermal & Energy engineering, School of Mechanical Engineering (SMEC), Vellore Institute of Technology (VIT), Vellore, Tamilnadu, India. My Doctoral and Post-Doctoral research works are related to phase change materials for energy storage and building applications with a small insight on the performance of organic Rankine cycle and synthesis of nanofluids. Currently I am working on the usage of nano enhanced and encapsulated phase change materials for building envelopes.

EDUCATION

Doctor of Philosophy in Heat Transfer from National Institute of Technology (NIT), Tiruchirappalli, Tamilnadu, India by 2020
Master of Engineering in Thermal Engineering from TRP Engineering College (SRM Group) , Tiruchirappalli Affiliated To Anna University, Chennai,
Tamilnadu, India by 2014
Bachelor of Technology in Mechanical Engineering from Kalasalingam University, Srivilliputhur, Tamilnadu, India by 2012.

RESEARCH, TEACHING, or OTHER INTERESTS

Mechanical Engineering, Building and Construction

Scopus Publications

Climate and carbon policy pathways for sustainable food systems
Zafar Said, Pethurajan Vigneshwaran, Saboor Shaik, Abdur Rauf, Zubair Ahmad
Environmental and Sustainability Indicators, 2025
Context & Background The global food system significantly contributes to climate change through carbon emissions. This article reviews how policies affect food affordability and supply, focusing on climate change and cuisine. Scope & Motivation Analyzing 123 articles on the agricultural supply chain, it explores strategies to address affordability and supply challenges. Rising global temperatures threaten food stability, highlighting the importance of agricultural policies in lowering production costs and improving farmer resilience and motivation to ensure a more sustainable and secure food system. Major findings with hypothesis, methods & results Climate change manifests diverse effects, including food security in regions less reliant on agriculture, with rainfall patterns being significant in northern and central areas. The food production process, a significant contributor to the industry's carbon emissions, exacerbates global warming. Thus, minimizing this carbon footprint is imperative for achieving sustainable development goals. The transition towards low-carbon footprint food is influencing environmental, economic, and policy dimensions. Achieving low-carbon future in food production and consumption requires a comprehensive approach. Conclusion Food choices significantly impact the environmental footprint of the food system, intertwining with climate change, land use, and dietary habits. Effective mitigation policie sare crucial for future economic prosperity. Sustainable diets emerge as a critical global issue in the 21 st century, with excess production of high-energy foods juxtaposed with insufficient output of fruits and vegetables. Despite these challenges, global agriculture can meet the current world population's dietary needs with its existing production capacity.
Techno-economic analysis of a hybrid thermal desalination system integrated with a PVT collector
S. Rajesh, C. Chiranjeevi, Saboor Shaik, Pethurajan Vigneshwaran, Fayaz Hussain, C Ahamed Saleel, Asif Afzal
Case Studies in Thermal Engineering, 2025
Sustainable societies will require innovative technical solutions to fulfil the mounting demand for water and energy to support urban lifestyles. Meeting the challenges of the water-energy nexus requires the implementation of sustainable technologies such as photovoltaics, solar desalination, and their integrated solutions, to meet a growing demand. The novelty of the present work is to utilizing the waste heat in proposed photovoltaic thermal (PVT) based hybrid desalination system with a step-wise solar still (SSS) and humidification-dehumidification (HD) desalination is being studied with an emphasis on life cycle assessment and techno-economic analysis of the proposed configuration. Life cycle studies reveal that the average energy production factor (EPF) is 14.84, the average life cycle conversion efficiency (LCCE) is 72.82 % over a 25-year life span, and the energy payback time (EPBT) is about 1.9 years on an energy basis with an average thermal efficiency of 77.72 %. The significance of hybrid systems for sustainable development has been highlighted, along with the possibility of 4.53 tons of CO 2 reduction and 389.58 USD in carbon credits that can be obtained annually for a typical solar radiation of 610 W/m 2 by deploying this hybrid system.
Future perspectives: emerging technologies and innovations
Saboor Shaik, Pethurajan Vigneshwaran, Abin Roy, B.S. Bibin
Revolutionizing Heat Transfer Nanofluids Turbulators and Machine Learning for Sustainable Energy Efficiency, 2025
Fundamentals of turbulent flow enhancement techniques
B.S. Bibin, Pethurajan Vigneshwaran, Abin Roy, Saboor Shaik, Gundabattini Edison
Revolutionizing Heat Transfer Nanofluids Turbulators and Machine Learning for Sustainable Energy Efficiency, 2025
Enhanced convective heat transfer with Al2O3-water nanofluid in a PCM-based thermal energy storage system
Abin Roy, K.P. Venkitaraj, Pethurajan Vigneshwaran, Shaik Saboor, Erdem Cuce, Kuldeep K. Saxena
Journal of Energy Storage, 2024
Experimental study on effect of mild steel scrap vertical insert in charging and discharging process of NaNO3:KNO3 phase change material
T. Raja Jeyaseelan, Pethurajan Vigneshwaran, Shaik Saboor, D. Siva Kumar, Kuldeep K. Saxena, Müslüm Arıcı
Journal of Energy Storage, 2024
Synthesis and Thermal Characterization of Solar Salt-Based Phase Change Composites with Graphene Nanoplatelets
Pethurajan Vigneshwaran, Saboor Shaik, Sivan Suresh, Müslüm Arici, Asif Afzal
Journal of Thermal Science, 2024
Influence of laser parameters and experimental conditions on the formation of nanostructured materials
Subramanian Arulmani, Pethurajan Vigneshwaran, Sacratees Santhosh
Pulsed Laser Induced Nanostructures in Liquids for Energy and Environmental Applications, 2024
Applications of nanorefrigerants and nanolubricants
Pethurajan Vigneshwaran, B.S. Bibin, Aabid Hussain Shaik, Gundabattini Edison, Saboor Shaik
Nano Refrigerants and Nano Lubricants Fundamentals and Applications, 2024
Nanolubricant: synthesis, stabilization, and characterization techniques
B.S. Bibin, Pethurajan Vigneshwaran, K. John Samuel, Aabid Hussain Shaik, Gundabattini Edison, Saboor Shaik
Nano Refrigerants and Nano Lubricants Fundamentals and Applications, 2024
Incorporation of graphene nanoplatelets with organic phase change materials – Studies on thermal conductivity enhancement, and thermal and chemical stability
Pethurajan Vigneshwaran, Saboor Shaik, Subramanian Arulmani, Müslüm Arıcı, Tabish Alam, Aabid Hussain Shaik
International Journal of Thermofluids, 2023
Integration of smart grid with renewable energy sources: Opportunities and challenges – A comprehensive review
Tarun Kataray, B. Nitesh, Bharath Yarram, Sanyukta Sinha, Erdem Cuce, Saboor Shaik, Pethurajan Vigneshwaran, Abin Roy
Sustainable Energy Technologies and Assessments, 2023
Experimental analysis on the impacts of soil deposition and bird droppings on the thermal performance of photovoltaic panels
Saboor Shaik, Pethurajan Vigneshwaran, Abin Roy, Karolos J. Kontoleon, Domenico Mazzeo, Erdem Cuce, C Ahamed Saleel, Mamdooh Alwetaishi, Sher Afghan Khan, Ali Etem Gürel, Ümit Ağbulut
Case Studies in Thermal Engineering, 2023
Solar Salt with Carbon Nanotubes as a Potential Phase Change Material for High-Temperature Applications: Investigations on Thermal Properties and Chemical Stability
Pethurajan Vigneshwaran, Saboor Shaik, Sivan Suresh, Mohamed Abbas, Chanduveetil Ahamed Saleel, Erdem Cuce
ACS Omega, 2023
Preparation and thermal properties of encapsulated 1-Decanol for low- temperature heat transfer fluid application
Solaimalai Raja Rakkappan, Suresh Sivan, Vignesh Pethurajan, A. Aditya, Harshit Mittal
Colloids and Surfaces A Physicochemical and Engineering Aspects, 2021
Microencapsulation of nitrate salt for solar thermal energy storage- synthesis, characterisation and heat transfer study
Vignesh Pethurajan, Sivan Suresh, Ahmad Mojiri, Alan Johny Konatt
Solar Energy Materials and Solar Cells, 2020
Heat transfer performance of graphene nano-platelets laden micro-encapsulated PCM with polymer shell for thermal energy storage based heat sink
B. Praveen, S. Suresh, Vignesh Pethurajan
Applied Thermal Engineering, 2019
Thermal characterization of NaNO3/KNO3 with different concentrations of Al2O3 and TiO2 nanoparticles
T. Raja Jeyaseelan, N. Azhagesan, Vignesh Pethurajan
Journal of Thermal Analysis and Calorimetry, 2019
Fabrication, characterisation and heat transfer study on microencapsulation of nano-enhanced phase change material
Vignesh Pethurajan, Suresh Sivan
Chemical Engineering and Processing Process Intensification, 2018
Facile approach to improve solar thermal energy storage efficiency using encapsulated sugar alcohol based phase change material
Vignesh Pethurajan, Suresh Sivan, Alan Johny Konatt, A. Sarath Reddy
Solar Energy Materials and Solar Cells, 2018
Issues, comparisons, turbine selections and applications – An overview in organic Rankine cycle
Vignesh Pethurajan, Suresh Sivan, Grashin C. Joy
Energy Conversion and Management, 2018
Experimental study of an organic rankine cycle using n-hexane as the working fluid and a radial turbine expander
Vignesh Pethurajan, Suresh Sivan
Inventions, 2018

RECENT SCHOLAR PUBLICATIONS

Hybrid Nanoparticles to Improve Solar‐Based Energy Storage
P Vigneshwaran, A Roy, BS Bibin, S Shaik
Machine Learning for Sustainable Energy Solutions, 161-183 , 2026
2026
Citations: 1
Climate and carbon policy pathways for sustainable food systems
Z Said, P Vigneshwaran, S Shaik, A Rauf, Z Ahmad
Environmental and Sustainability Indicators 27, 100730 , 2025
2025
Citations: 40
Techno-economic analysis of a hybrid thermal desalination system integrated with a PVT collector
S Rajesh, C Chiranjeevi, S Shaik, P Vigneshwaran, F Hussain, CA Saleel, ...
Case Studies in Thermal Engineering 71, 106155 , 2025
2025
Citations: 12
Fundamentals of turbulent flow enhancement techniques
BS Bibin, P Vigneshwaran, A Roy, S Shaik, G Edison
Revolutionizing Heat Transfer, 223-241 , 2025
2025
Future perspectives: emerging technologies and innovations
S Shaik, P Vigneshwaran, A Roy, BS Bibin
Revolutionizing Heat Transfer, 257-288 , 2025
2025
Enhanced convective heat transfer with Al2O3-water nanofluid in a PCM-based thermal energy storage system
A Roy, KP Venkitaraj, P Vigneshwaran, S Saboor, E Cuce, KK Saxena
Journal of Energy Storage 97, 112853 , 2024
2024
Citations: 30
Experimental study on effect of mild steel scrap vertical insert in charging and discharging process of NaNO3: KNO3 phase change material
TR Jeyaseelan, P Vigneshwaran, S Saboor, DS Kumar, KK Saxena, ...
Journal of Energy Storage 85, 111074 , 2024
2024
Citations: 8
Synthesis and thermal characterization of solar salt-based phase change composites with graphene nanoplatelets
P Vigneshwaran, S Shaik, S Suresh, M Arici, A Afzal
Journal of Thermal Science 33 (2), 491-500 , 2024
2024
Citations: 7
Influence of laser parameters and experimental conditions on the formation of nanostructured materials
S Arulmani, P Vigneshwaran, S Santhosh
Pulsed Laser-Induced Nanostructures in Liquids for Energy and Environmental … , 2024
2024
Citations: 1
Applications of nanorefrigerants and nanolubricants
P Vigneshwaran, BS Bibin, AH Shaik, G Edison, S Shaik
Nano-refrigerants and Nano-lubricants, 315-335 , 2024
2024
Nanolubricant: synthesis, stabilization, and characterization techniques
BS Bibin, P Vigneshwaran, KJ Samuel, AH Shaik, G Edison, S Shaik
Nano-refrigerants and Nano-lubricants, 35-71 , 2024
2024
Citations: 2
Incorporation of graphene nanoplatelets with organic phase change materials–Studies on thermal conductivity enhancement, and thermal and chemical stability
P Vigneshwaran, S Shaik, S Arulmani, M Arıcı, T Alam, AH Shaik
International Journal of Thermofluids 20, 100456 , 2023
2023
Citations: 31
Integration of smart grid with renewable energy sources: Opportunities and challenges–A comprehensive review
T Kataray, B Nitesh, B Yarram, S Sinha, E Cuce, S Shaik, P Vigneshwaran, ...
Sustainable Energy Technologies and Assessments 58, 103363 , 2023
2023
Citations: 352
Experimental analysis on the impacts of soil deposition and bird droppings on the thermal performance of photovoltaic panels
S Shaik, P Vigneshwaran, A Roy, KJ Kontoleon, D Mazzeo, E Cuce, ...
Case Studies in Thermal Engineering 48, 103128 , 2023
2023
Citations: 46
Solar salt with carbon nanotubes as a potential phase change material for high-temperature applications: investigations on thermal properties and chemical stability
P Vigneshwaran, S Shaik, S Suresh, M Abbas, CA Saleel, E Cuce
ACS omega 8 (20), 17563-17572 , 2023
2023
Citations: 21
Preparation and thermal properties of encapsulated 1-Decanol for low-temperature heat transfer fluid application
SR Rakkappan, S Sivan, V Pethurajan, A Aditya, H Mittal
Colloids and Surfaces A: Physicochemical and Engineering Aspects 614, 126167 , 2021
2021
Citations: 21
Microencapsulation of nitrate salt for solar thermal energy storage-synthesis, characterisation and heat transfer study
V Pethurajan, S Suresh, A Mojiri, AJ Konatt
Solar Energy Materials and Solar Cells 206, 110308 , 2020
2020
Citations: 39
Heat transfer performance of graphene nano-platelets laden micro-encapsulated PCM with polymer shell for thermal energy storage based heat sink
B Praveen, S Suresh, V Pethurajan
Applied Thermal Engineering 156, 237-249 , 2019
2019
Citations: 155
Thermal characterization of NaNO. sub. 3/KNO. sub. 3 with different concentrations of Al. sub. 2O. sub. 3 and TiO. sub. 2 nanoparticles.
TR Jeyaseelan, N Azhagesan, V Pethurajan
Journal of Thermal Analysis and Calorimetry 136 (1), 235-243 , 2019
2019
Citations: 34
Fabrication, characterisation and heat transfer study on microencapsulation of nano-enhanced phase change material
V Pethurajan, S Sivan
Chemical Engineering and Processing-Process Intensification 133, 12-23 , 2018
2018
Citations: 69

MOST CITED SCHOLAR PUBLICATIONS

Integration of smart grid with renewable energy sources: Opportunities and challenges–A comprehensive review
T Kataray, B Nitesh, B Yarram, S Sinha, E Cuce, S Shaik, P Vigneshwaran, ...
Sustainable Energy Technologies and Assessments 58, 103363 , 2023
2023
Citations: 352
Issues, comparisons, turbine selections and applications–An overview in organic Rankine cycle
V Pethurajan, S Sivan, GC Joy
Energy Conversion and Management 166, 474-488 , 2018
2018
Citations: 178
Heat transfer performance of graphene nano-platelets laden micro-encapsulated PCM with polymer shell for thermal energy storage based heat sink
B Praveen, S Suresh, V Pethurajan
Applied Thermal Engineering 156, 237-249 , 2019
2019
Citations: 155
Fabrication, characterisation and heat transfer study on microencapsulation of nano-enhanced phase change material
V Pethurajan, S Sivan
Chemical Engineering and Processing-Process Intensification 133, 12-23 , 2018
2018
Citations: 69
Facile approach to improve solar thermal energy storage efficiency using encapsulated sugar alcohol based phase change material
V Pethurajan, S Sivan, AJ Konatt, AS Reddy
Solar Energy Materials and Solar Cells 185, 524-535 , 2018
2018
Citations: 64
Experimental analysis on the impacts of soil deposition and bird droppings on the thermal performance of photovoltaic panels
S Shaik, P Vigneshwaran, A Roy, KJ Kontoleon, D Mazzeo, E Cuce, ...
Case Studies in Thermal Engineering 48, 103128 , 2023
2023
Citations: 46
Climate and carbon policy pathways for sustainable food systems
Z Said, P Vigneshwaran, S Shaik, A Rauf, Z Ahmad
Environmental and Sustainability Indicators 27, 100730 , 2025
2025
Citations: 40
Microencapsulation of nitrate salt for solar thermal energy storage-synthesis, characterisation and heat transfer study
V Pethurajan, S Suresh, A Mojiri, AJ Konatt
Solar Energy Materials and Solar Cells 206, 110308 , 2020
2020
Citations: 39
Thermal characterization of NaNO. sub. 3/KNO. sub. 3 with different concentrations of Al. sub. 2O. sub. 3 and TiO. sub. 2 nanoparticles.
TR Jeyaseelan, N Azhagesan, V Pethurajan
Journal of Thermal Analysis and Calorimetry 136 (1), 235-243 , 2019
2019
Citations: 34
Incorporation of graphene nanoplatelets with organic phase change materials–Studies on thermal conductivity enhancement, and thermal and chemical stability
P Vigneshwaran, S Shaik, S Arulmani, M Arıcı, T Alam, AH Shaik
International Journal of Thermofluids 20, 100456 , 2023
2023
Citations: 31
Enhanced convective heat transfer with Al2O3-water nanofluid in a PCM-based thermal energy storage system
A Roy, KP Venkitaraj, P Vigneshwaran, S Saboor, E Cuce, KK Saxena
Journal of Energy Storage 97, 112853 , 2024
2024
Citations: 30
Solar salt with carbon nanotubes as a potential phase change material for high-temperature applications: investigations on thermal properties and chemical stability
P Vigneshwaran, S Shaik, S Suresh, M Abbas, CA Saleel, E Cuce
ACS omega 8 (20), 17563-17572 , 2023
2023
Citations: 21
Preparation and thermal properties of encapsulated 1-Decanol for low-temperature heat transfer fluid application
SR Rakkappan, S Sivan, V Pethurajan, A Aditya, H Mittal
Colloids and Surfaces A: Physicochemical and Engineering Aspects 614, 126167 , 2021
2021
Citations: 21
Techno-economic analysis of a hybrid thermal desalination system integrated with a PVT collector
S Rajesh, C Chiranjeevi, S Shaik, P Vigneshwaran, F Hussain, CA Saleel, ...
Case Studies in Thermal Engineering 71, 106155 , 2025
2025
Citations: 12
Experimental study of an organic rankine cycle using n-hexane as the working fluid and a radial turbine expander
V Pethurajan, S Sivan
Inventions 3 (2), 31 , 2018
2018
Citations: 10
Experimental study on effect of mild steel scrap vertical insert in charging and discharging process of NaNO3: KNO3 phase change material
TR Jeyaseelan, P Vigneshwaran, S Saboor, DS Kumar, KK Saxena, ...
Journal of Energy Storage 85, 111074 , 2024
2024
Citations: 8
Synthesis and thermal characterization of solar salt-based phase change composites with graphene nanoplatelets
P Vigneshwaran, S Shaik, S Suresh, M Arici, A Afzal
Journal of Thermal Science 33 (2), 491-500 , 2024
2024
Citations: 7
Nanolubricant: synthesis, stabilization, and characterization techniques
BS Bibin, P Vigneshwaran, KJ Samuel, AH Shaik, G Edison, S Shaik
Nano-refrigerants and Nano-lubricants, 35-71 , 2024
2024
Citations: 2
Hybrid Nanoparticles to Improve Solar‐Based Energy Storage
P Vigneshwaran, A Roy, BS Bibin, S Shaik
Machine Learning for Sustainable Energy Solutions, 161-183 , 2026
2026
Citations: 1
Influence of laser parameters and experimental conditions on the formation of nanostructured materials
S Arulmani, P Vigneshwaran, S Santhosh
Pulsed Laser-Induced Nanostructures in Liquids for Energy and Environmental … , 2024
2024
Citations: 1

Publications

1. Vignesh Pethurajan, Suresh Sivan, Grashin C Joy. Issues, comparisons, turbine selections and applications–An overview in organic Rankine cycle. Energy Conversion and Management. 2018 Jun 15; 166:474-88. ( & Citied by 98)
2. Vignesh Pethurajan, Suresh Sivan, Konatt AJ, Reddy AS. Facile approach to improve solar thermal energy storage efficiency using encapsulated sugar alcohol- based phase change material. Solar Energy Materials and Solar Cells. 2018 Oct 31; 185:524-35. ( & Citied by 39)
3. Vignesh Pethurajan, Suresh Sivan. Fabrication, characterisation and heat transfer study on microencapsulation of nano-enhanced phase change material. Chemical Engineering and Processing-Process Intensification. 2018 Nov 1; 133:12-23. ( & Citied by 28)
4. Vignesh Pethurajan, Suresh Sivan. Experimental study of an organic Rankine cycle using n-hexane as the working fluid and a radial turbine expander. Inventions. 2018 Jun;3(2):31. (IF- NIL & Citied by 6)
5. Jeyaseelan, T. Raja, N. Azhagesan, and Vignesh Pethurajan. Thermal characterization of NaNO3/KNO3 with different concentrations of Al2O3 and TiO2 nanoparticles. Journal of Thermal Analysis and Calorimetry 136.1 (2019): 235-242. ( & Citied by 18)
6. Praveen, B., S. Suresh, and Vignesh Pethurajan. Heat transfer performance of graphene nano-platelets laden micro-encapsulated PCM with polymer shell for thermal energy storage-based heat sink. Applied Thermal Engineering 156 (2019): 237-249. ( & Citied