Hemavathi Sugumar

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• Doctor of Philosophy
• Researcher at Central Electrochemical Research Institute

Lithium-ion batteries generate excessive heat under high discharge rates, leading to performance degradation and safety risks. Conventional air cooling systems struggle with uniform heat dissipation, necessitating advanced cooling solutions. This study investigates the thermal management of cylindrical and prismatic lithium-ion cells under fast dis...

Heat generation during fast charging and discharging of lithium‐ion batteries (LIBs) remains a significant challenge, potentially leading to overheating, reduced performance, or thermal runaway. Traditional battery thermal management systems (BTMS), such as air‐based cooling and indirect liquid cooling using cold plates, often result in high therma...

Li‐ion batteries have become a leading choice for efficient energy storage due to their high energy density and durability. However, managing their thermal characteristics to optimize performance and safety is a significant challenge during fast charging and abuse conditions. This review article focuses on the thermal characteristics of Li‐ion batt...

Integrating renewable energies in various industries is a promising solution for fossil fuel depletion and carbon footprint problems. A Hybrid system with wind & solar-powered electric vehicles for two-wheelers, three-wheelers, tricycles, auto-rickshaws, boats, etc., is the future with rural & urban transportation to support the nation for the envi...

Major support for the future energy storage and application will benefit from lithium‐ion batteries (LIBs) with high energy density and high power. LIBs are currently the most common battery type for most applications, but soon a broader range of battery types and higher energy densities will be available. In the near future, hundreds of millions o...

A Li-ion battery can experience thermal runaway when its temperature rise and temperature distribution are uneven due to fast charging/discharging and extreme hot/cold ambient temperature conditions. In Electric vehicles, a battery thermal management system is used to address these challenges and assure superior battery pack performance. The conven...

This study explores the performance of a steady-state flow single-phase non-conductive liquid immersion cooling system in a single-cell Li-ion battery under a variety of thermal environments such as 25°C, 40°C, and 60°C and tested at different charge C-rates. The experimental results show that the proposed cooling system exhibited the best cooling...

A brain tumor is defined by the proliferation of aberrant brain cells, some of which may progress to malignancy. A brain tumor is usually diagnosed via a magnetic resonance imaging (MRI) examination. These images demonstrate the recently observed aberrant brain tissue proliferation. Several academics have examined the use of machine learning and De...

Power supplies used by most present power conversions including motor drive systems produce non-sinusoidal current. Unwanted harmonics in non-sinusoidal currents wreak havoc on a grid's supply chain. Other equipment that relies on the same power source is negatively impacted. An AC-DC converter that permits bi-directional power flow, improves input...

One of the greatest issues facing the nation today is the energy crisis. The energy crisis can be mitigated to some extent if people keep track of our energy consumption and avoid wasting it. People nowadays confront a variety of issues, including electricity theft. One’s own country’s economy has a major significant influence on electric power the...

The hybrid power supply of solar batteries is essential for the plug-in, green and smart construction of electric cars (PEV). This paper provides a framework for optimization for green power testing and PEV nutrients, balanced home batteries, and photovoltaic arrays (PVAt the same time as fulfilling domestic power and PEV demand, we are seeking to...

The radical decline in climatic conditions coerces the world to take steps progressive toward implementing green energy technologies in all facets. The electric vehicle is one such huge leap toward providing a pollution‐free environment to the future generation, but the charging techniques in most cases utilize the power that is obtained using ther...

Lithium-ion batteries are the primary energy source for electric vehicles (EVs), which were developed to address environmental issues and the lack of energy resources. The temperature is a key factor in Li-ion batteries which affects their degradation and life span. In this study, the thermal performance characteristics of a 4S2P Li-ion battery pac...

An experimental investigation on the effect of water mass on performance, and yield of a triangular slope and a typical single slope solar still is presented in this paper. The condensing cover of the triangular slope solar still is made using polyethylene, and the area of the solar still is made as 0.25 m2 for conventional and triangular slope sol...

This study presents a proposal to capture solar energy using photovoltaic cells on zinc tiles. In most existing photovoltaic projects, the implementation of photovoltaic modules requires a suitable roof and structure to house them. In this study, fasteners will be made directly to the tile, without the need for the structure to modify the roof. The...

In this work, a sensor based on narrowed optical fibers (NOF) or Taper, as it is also known, is developed, which allows the measurement of vibrations in electric motors using the cantilever or cantilever bar mechanical model. The objective of this study is to characterize the tapered fiber sensor, based on the vibration measurement range, to accura...

Bifacial solar cells convert incident solar irradiance on both sides and PERC family configurations have the potential to increase efficiency due to passivation on both sides. In p-based devices, boron back surface field (BSF) passivation is a challenge. An alternative to conventional methods for passivation is floating junction formation. The aim...

Internet of Vehicles (IoV) has been viewed as a pivotal innovation for laying out Intelligent Transportation Systems in shrewd urban communities and is perhaps of the most encouraging application later on Internet of Things. the 6th era has started to arise. With the appearance of 6G interchanges, tremendous organization frameworks, be generally ut...

Under the influence of cosmic improvement, photovoltaic (PV) container power capability decreases. In this case study, several passive and active chilling exploratory studies are carried out on a PV container to determine their effects on the energetic and warm depiction of a PVT scheme. All experiments are carried out on a cosmic person who poses...

To determine the distance, presence, or absence of the object by using a transmitter or photoelectric receiver the photoelectric device is used. The potential of a photovoltaic (PV) panel to produce power is roughly dependent on the intensity of sunlight falling on it. This study planned and constructed a dual-axis solar programmable logical contro...

Renewable energy has gained enormous popularity in recent years. Both independent and grid-connected renewable energy generating capacity has increased. The potential to create green energy that is both ecologically benign and financially operative is the primary argument. To reduce the cost of maintaining a hybrid microgrid, this study provides a...

The rise in popularity of self-driving cars can be attributed to advancements in modern technology. The surge in interest in self-driving cars has led to an increase in their development, but this has also brought some challenges. A large part of the solution to these problems is satellite remote sensing and GIS technology. Optical data remote sens...

The focus of this study is to develop a bidirectional wireless charging system for E-Vehicles (EV). The bidirectional DC-DC converter employs the LCC resonant circuit designed separately for the source and the vehicle. With the use of bidirectional power electronic device, the converters act as inverters or rectifiers according to the requirement o...

The involvement of electric vehicles (EVs) is increasing over the past few years due to several factors including the increasing emission of carbon dioxide (CO2), depletion of fossil fuels, and promotion of renewable deployment. The growth of charging stations is essential to support the transition of conventional vehicles to electric vehicles. Thi...

There have been a lot of people and businesses who have paid more attention to AI tools and machine learning techniques in the last 10 years. The problem is that, even though AI technology has a lot of potential to help people, there are still issues with how to use it and a lack of knowledge about how AI can help businesses be more profitable. In...

Deep learning (DL) and the Internet of Things (IoT) have yet to make an influence on marketing, but they will in the future. DL offers several advantages, including as the capacity to generalize scientific discoveries using more rigorous methodologies, despite this drawback. Because there is a void, this research has four major objectives: A high-l...

Internet of Things: Waste management has become a big problem because of the rise of the Internet of Things (IoT). Every day, cities have to deal with waste. It takes a lot of time and money, and it has an effect on natural, budgetary, efficiency, and social aspects. It also takes a lot of time and money. Using the nearest neighbor search, colony o...

For Iot systems, LoRa (Long Range) offers the lowest wide-area network solution. The use of Iot systems for remote monitoring and control is growing in popularity with the growth of the Internet of Things. Compared to conventional metres, digital metres have several benefits, and smart metering is one of the applications of the Internet of Things (...

In this research work, AA2024/5Al2O3/5Gr hybrid composites fabricated through stir casting were machined utilising an electric discharge machine (EDM). Experiments were performed by varying current, pulse on time (POT), gap voltage (GV), and Al2O3 powder concentration (PC). The experiments were designed using response surface methodology in which m...

A traditional smart grid includes a central control center that monitors and controls all of the devices linked to it to ensure that they are all operating at peak efficiency. The institution will be able to manage its energy better while minimizing peak power use with the aid of the central control center. This decrease saves a significant amount...

The business focuses on high velocity machine innovation with charged rotor frameworks. Various control hardware and exact movement sensors are fundamental when searching for elite execution machines. It is significant that basic modern cycles have a remote observing framework that can give estimation information to examination. This paper proposes...

Selection of a text characteristic is a prerequisite for text mining and information retrieval. Traditional techniques of feature extraction demand the use of custom features that must be made by hand. For new applications, deep learning allows the acquisition of new effective feature representations from training data rather than having to spend a...

An increasing demand exists for innovative data analysis methods in a world where various data are generated by complicated data collecting processes. Several hierarchical data sets with high-dimensional data are the focus of this research. If a data set has complex samples, we assume that every sample has an irregular structure that can be represe...

Generation, transmission, and distribution have been an integral part of the conventional power sector, interconnected over long distance through a diverse network of wire known as the electric grid. The grid has been an incredibly important and complex system, signifying the modern era's most remarkable engineering feats. With the evolution of cos...

The image detection in medical field is a difficult task due to small lesions which are not identifiable in an early stage. The early medical diagnosis is important because it increases the mortality rate. Therefore prediction of lung cancer in its early stage is important. Here Linear Discriminant Analysis (LDA) classification is used to predict l...

Many service-related tasks can now be completed swiftly and efficiently thanks to advancements in mobile communications. Mobile banking is one such solution that has eliminated the requirement for many ordinary transactions to be completed at a branch. Mobile phones can supplement the reach in a country like India, where the last mile is reached th...

According to current scientific research studies around 78–80 percent of commercial energy in the globe is derived from fossil fuels, including petroleum, coal, and natural gas. Sources with a lot of carbon have a detrimental impact on our environment and our health. As a result, most nations have switched their focus to low-carbon energy sources....

Randomly remote sensors are conveyed to shape a specially appointed organization in a non-deterministic environment. Different hierarchical clustering supporting algorithms are available for efficient coverage, information processing and connectivity in the literature. For increasing efficiency of these highly supporting tiny notes very few researc...

Microgrid has emerged as an efficient autonomous decentralized utility grid to reduce the dependency on the regular electric grid. It also benefits in the reduction of unwanted transient and harmonics and results in overall power quality improvement. The study is essentially focused on the Solar PV unit because of its increasing importance and prom...

Solar PV has been one of the primary renewable energy sources in the current context due to its typical characteristics and sophisticated operation. Most of the time, the output of solar PV has been observed to be irregular and unpredictable; due to this, the load end gets stressed most of the time. Power generation via PhotoVoltaic (PV), due to th...

While engineering and science employ data mining to solve problems, finance and marketing frequently employ it to confront these same problems. By applying data mining to decision support systems, businesses may both better comprehend the realities of their industry and optimize their performance. Dealing with an unstable economy is the norm for al...

Power quality in electricity is one of the most important study in recent times, with many researchers working in this field maintaining a quality power target. This article highlights challenges of power quality in power systems, particularly in INDIA. It also covers the several sources of problems with energy quality, their impact and preventativ...

The diagnosis of Li-ion battery degradation is vital in electric vehicle applications for the reliable and secure operation of Li-ion batteries. This can be accomplished by measuring the two important parameters such as battery capacity and internal impedance of the battery cells over the entire lifetime of the battery. To recognize the batteries e...

Battery is a main energy storage device that can be widely used in a stand‐alone PV system. Due to load transient power and peak load demand, battery lifespan decreases, and design of a large size battery is required. Thus, a high power density characteristic of the ultracapacitor is to be combined with the battery to achieve the high power load re...

The Li‐ion battery is an energy storage system in consumer and industrial applications. Because of their cell and pack level protection, Li‐ion battery requires a battery management system (BMS). The important function of the BMS is to monitor and protect the Li‐ion battery cells and packs from fault conditions, in order to maximize their lifecycle...

Li‐ion batteries are influenced by numerous features such as over‐voltage, undervoltage, overcharge and discharge current, thermal runaway, and cell voltage imbalance. One of the most significant factors is cell imbalance which varies each cell voltage in the battery pack overtime and hence decreases battery capacity rapidly. To increase the lifeti...

he fundamental target of this research work is to discuss and analyze the impact of Cloud computing in Power System applications. Cloud process gives another worldview to simple access to bigger scale computing resources over the Internet, along these lines offering an option answer for enormous information handling and overwhelming computational w...

The fundamental target of this research work is to discuss and analyze the impact of Cloud computing in Power System applications. Cloud process gives another worldview to simple access to bigger scale computing resources over the Internet, along these lines offering an option answer for enormous information handling and overwhelming computational...