Srihari Palli | Aditya Institute Of Technology And Management (original) (raw)
Papers by Srihari Palli
Energy, environment, and sustainability, 2024
Journal of micromanufacturing, Feb 25, 2024
AIP Conference Proceedings, Dec 31, 2023
AIP Conference Proceedings, Dec 31, 2023
Noise & Vibration Worldwide, Nov 5, 2023
Zhōngguó gōngchéng xuékān, Feb 6, 2024
Energy, Environment, and Sustainability
National Academy Science Letters
Journal of the Chinese Institute of Engineers
International Journal of Vehicle Structures & Systems, Jul 12, 2023
The primary source of global warming is the exploitation of fossil fuels. Biodiesel is a renewabl... more The primary source of global warming is the exploitation of fossil fuels. Biodiesel is a renewable energy source that can be used to reduce greenhouse gas emissions. It has emerged as a promising alternative to petroleum-based fuels due to its lower carbon footprint. However, it is important to note that the economic and energy output of vegetable oil plants that are involved in the production of this fuel is not known. Current research trends on biodiesel fuels have been investigated on non-edible oils, which present better performance when blended with diesel. This work studies the performance of karanja-based biodiesel on VCR engines with different Diesel Blending Ratio (DBR) of 0%, 10%, 20%, 30%. Engine performance and exhaust gas analysis tests are carried out on a VCR-diesel engine at various loads to examine specific characteristics of karanja biodiesel as a fuel. As per observations, DBR 10%, 20% of biodiesel exhibited better performance than the other blended fuels. To enhance the performance of DBR 10% and 20% biodiesel were graded up with the addition of 5% Methanol. The overall performance of all blended fuels is compared in all aspects.
Energy, Environment, and Sustainability, 2023
International Journal of Vehicle Structures and Systems
The thermal management of electronic devices is a critical component of their performance. Due to... more The thermal management of electronic devices is a critical component of their performance. Due to the emergence and evolution of new technologies, the wide use of electronic devices is increased in the past decade in the field of marine, automobile and other stationary applications. The need for effective thermal management in these applications has become more critical. This paper aims to provide a comprehensive overview of the various challenges that face the development of new composite materials, as epoxy-based composites are the latest trend of materials widely used in many areas. But their thermal conductivity behaves poorly in moisture and thermal conditions. This work attempts to study the behaviour of silicon carbide and E glass fiber reinforced polymer matrix composite under hygrothermal and compressive loads. Specimens are also tested for moisture absorption to calculate the hygro strains of a specimen. E-glass fiber is fixed to 15% and varied 10%, 20% and 30% of SiC in t...
SAE Technical Paper Series
High temperatures are usually used to process composite materials. The temperature difference bet... more High temperatures are usually used to process composite materials. The temperature difference between the composite material polymer matrix composites (PMCs) and the ambient environment is generally around 200°C to 300°C when they cool down to room temperature. The combination of layers is used to create a perfect laminate. Due to the varying thermal expansion rates of each of the three layers in a laminate, the residual stress in the structure can vary depending on the angle at which it is placed. For instance, the thermal strains are different in transverse and longitudinal directions. The stresses and strain were investigated at different orientations and found that the outcomes are better than the longitudinal and transverse stacking. This work investigates the influence of thermal loads and mechanical loads on the stress-strain relationship of a polycrystalline carbon (PCO) polymer (graphite fiber) laminate. Through a combination of methods, the researchers developed a macromec...
International Journal of Vehicle Structures and Systems
The Gas Tungsten Arc Welding (GTAW) is now commonly being used to join condenser pipes of railway... more The Gas Tungsten Arc Welding (GTAW) is now commonly being used to join condenser pipes of railway locomotives, beside boiler and super heater tubes, generally made from dissimilar steel-alloys like P22 (2.25Cr-1Mo) and P91 (9Cr-1Mo). After welding, excessive hardness values of the Heat Affected Zones (HAZs) of those dissimilar weld joints are certainly obtained due to uneven and uncontrolled cooling rates, which resulted in an eruption of abrupt martensitic transformations. This ultimately leads to cracking and failure while operating at elevated temperatures. Therefore, there is a dire need to establish an appropriately optimized post-weld heat treatment process to eliminate this hazardous nuisance. The present work statistically studies the hardness profile of these critical material zones, before and after GTAW.
International Journal of Vehicle Structures and Systems
With a speedy advancement in vehicle speed and transport capability, a huge challenge has been im... more With a speedy advancement in vehicle speed and transport capability, a huge challenge has been imposed to improve railway vehicle dynamic behaviour and track design to ensure the optimum performance of railway vehicles and tracks. To safely negotiate the vehicle speed on circular and transition curve tracks several aspects such as wheel-rail wear, smooth ride and vehicle stability need to be analysed. The investigators have paid great attention to exploring the compatibility among vehicle stability and curving ability, parametric analysis and optimization of curving performance, minimising the wheel-rail wear and curve squeal noise etc. The present paper focuses on reviewing these past efforts made by the researchers.
Energy, Environment, and Sustainability, 2023
Journal of the Chinese Institute of Engineers
International Journal on Recent and Innovation Trends in Computing and Communication, Dec 10, 2022
SAE International Journal of Commercial Vehicles
SAE International Journal of Commercial Vehicles
Energy, environment, and sustainability, 2024
Journal of micromanufacturing, Feb 25, 2024
AIP Conference Proceedings, Dec 31, 2023
AIP Conference Proceedings, Dec 31, 2023
Noise & Vibration Worldwide, Nov 5, 2023
Zhōngguó gōngchéng xuékān, Feb 6, 2024
Energy, Environment, and Sustainability
National Academy Science Letters
Journal of the Chinese Institute of Engineers
International Journal of Vehicle Structures & Systems, Jul 12, 2023
The primary source of global warming is the exploitation of fossil fuels. Biodiesel is a renewabl... more The primary source of global warming is the exploitation of fossil fuels. Biodiesel is a renewable energy source that can be used to reduce greenhouse gas emissions. It has emerged as a promising alternative to petroleum-based fuels due to its lower carbon footprint. However, it is important to note that the economic and energy output of vegetable oil plants that are involved in the production of this fuel is not known. Current research trends on biodiesel fuels have been investigated on non-edible oils, which present better performance when blended with diesel. This work studies the performance of karanja-based biodiesel on VCR engines with different Diesel Blending Ratio (DBR) of 0%, 10%, 20%, 30%. Engine performance and exhaust gas analysis tests are carried out on a VCR-diesel engine at various loads to examine specific characteristics of karanja biodiesel as a fuel. As per observations, DBR 10%, 20% of biodiesel exhibited better performance than the other blended fuels. To enhance the performance of DBR 10% and 20% biodiesel were graded up with the addition of 5% Methanol. The overall performance of all blended fuels is compared in all aspects.
Energy, Environment, and Sustainability, 2023
International Journal of Vehicle Structures and Systems
The thermal management of electronic devices is a critical component of their performance. Due to... more The thermal management of electronic devices is a critical component of their performance. Due to the emergence and evolution of new technologies, the wide use of electronic devices is increased in the past decade in the field of marine, automobile and other stationary applications. The need for effective thermal management in these applications has become more critical. This paper aims to provide a comprehensive overview of the various challenges that face the development of new composite materials, as epoxy-based composites are the latest trend of materials widely used in many areas. But their thermal conductivity behaves poorly in moisture and thermal conditions. This work attempts to study the behaviour of silicon carbide and E glass fiber reinforced polymer matrix composite under hygrothermal and compressive loads. Specimens are also tested for moisture absorption to calculate the hygro strains of a specimen. E-glass fiber is fixed to 15% and varied 10%, 20% and 30% of SiC in t...
SAE Technical Paper Series
High temperatures are usually used to process composite materials. The temperature difference bet... more High temperatures are usually used to process composite materials. The temperature difference between the composite material polymer matrix composites (PMCs) and the ambient environment is generally around 200°C to 300°C when they cool down to room temperature. The combination of layers is used to create a perfect laminate. Due to the varying thermal expansion rates of each of the three layers in a laminate, the residual stress in the structure can vary depending on the angle at which it is placed. For instance, the thermal strains are different in transverse and longitudinal directions. The stresses and strain were investigated at different orientations and found that the outcomes are better than the longitudinal and transverse stacking. This work investigates the influence of thermal loads and mechanical loads on the stress-strain relationship of a polycrystalline carbon (PCO) polymer (graphite fiber) laminate. Through a combination of methods, the researchers developed a macromec...
International Journal of Vehicle Structures and Systems
The Gas Tungsten Arc Welding (GTAW) is now commonly being used to join condenser pipes of railway... more The Gas Tungsten Arc Welding (GTAW) is now commonly being used to join condenser pipes of railway locomotives, beside boiler and super heater tubes, generally made from dissimilar steel-alloys like P22 (2.25Cr-1Mo) and P91 (9Cr-1Mo). After welding, excessive hardness values of the Heat Affected Zones (HAZs) of those dissimilar weld joints are certainly obtained due to uneven and uncontrolled cooling rates, which resulted in an eruption of abrupt martensitic transformations. This ultimately leads to cracking and failure while operating at elevated temperatures. Therefore, there is a dire need to establish an appropriately optimized post-weld heat treatment process to eliminate this hazardous nuisance. The present work statistically studies the hardness profile of these critical material zones, before and after GTAW.
International Journal of Vehicle Structures and Systems
With a speedy advancement in vehicle speed and transport capability, a huge challenge has been im... more With a speedy advancement in vehicle speed and transport capability, a huge challenge has been imposed to improve railway vehicle dynamic behaviour and track design to ensure the optimum performance of railway vehicles and tracks. To safely negotiate the vehicle speed on circular and transition curve tracks several aspects such as wheel-rail wear, smooth ride and vehicle stability need to be analysed. The investigators have paid great attention to exploring the compatibility among vehicle stability and curving ability, parametric analysis and optimization of curving performance, minimising the wheel-rail wear and curve squeal noise etc. The present paper focuses on reviewing these past efforts made by the researchers.
Energy, Environment, and Sustainability, 2023
Journal of the Chinese Institute of Engineers
International Journal on Recent and Innovation Trends in Computing and Communication, Dec 10, 2022
SAE International Journal of Commercial Vehicles
SAE International Journal of Commercial Vehicles