Debabrata Barik

• Doctor of Engineering
• Professor at Karpagam Academy of Higher Education

Maximizing energy collection and optimizing the performance of solar photovoltaic cells (SPVCs) is essential for the day. In this context, using nanofluids of graphite-dopped titanium dioxide (G-TiO2) and aluminum oxide (G-Al2O3) in SPVC systems plays a crucial role in preventing PV panel overheating, thereby enhancing electrical efficiency and the...

The thermal management of lithium-ion battery packs (LIBP) is crucial in ensuring safe and efficient operation in electric vehicles (EVs). The major concern of LIBP is to keep it at an appropriate temperature during the energizing and draining processes. The present work reviews the critical role of duct design in enhancing the efficiency of air-co...

This study endeavors to tackle the energy requirements of the building sector by employing passive design strategies. However, there exists a dearth of comprehension regarding the energy efficiency performance of foamed alkali-activated materials. To bridge this research gap, the study proposes a solution in the form of a thermally proficient wall...

The influence of Boron Nitride (BN) nanoparticles (at a fixed dosage of 50 ppm), 10% Di-methyl carbonate (DMC) inclusion in the Neem Oil Methyl Ester (NOME) - diesel mix at 20:80 ratio (B20), and hydrogen enrichment (99.9% purity) at 8 lpm flow rate is used in the current study to investigate the critical combustion behavior of a 1-cylinder, 4-str...

In the machining domain, friction is one of the most undesirable effects, leading to excessive heat generation, accelerated cutting tool wear, and adverse impacts on the mechanical properties of machined components. Addressing these challenges has led to the development of a novel category of Cutting Fluids (CFs): Nano Cutting Fluids (NCFs).This re...

In the machining domain, the most undesired effect is the ‘friction’, which leads to excessive heat generation and results in wear of the cutting tool. Also, the effect of friction has a significant negative impact on the mechanical properties of the machined components. To address these negative consequences, a novel category of Cutting Fluids (CF...

The goal of this study was to improve the performance of a parabolic trough solar water heater (PTSWH) by using a dimpled texture design on the water tube and copper oxide/deionized water (CuO/DI-H2O) as a cell-side nanofluid (NF). Experimental tests will be conducted to measure and validate the thermal performance improvements using the dimpled tu...

This proposed study aims to characterize and utilize the biogas (BG) derived from the anaerobic co‐digestion of university hostel food waste and Vinasse (waste from the sugarcane industry) in a digester and to run an agricultural diesel engine with BG and Jatropha Curcas methyl ester (JCMS) on a dual fuel (DF) mode. In DF mode, BG from food waste w...

This paper experimentally investigates the factors influencing the flow boiling heat transfer of R134a refrigerant within smooth and micro-fin tubes having an outer diameter of 9.52 mm. The tube has a peculiar micro-fin shape with a 46° apex angle and 22° helix angle, producing a surface area 1.62 times bigger than a smooth tube of identical diamet...

The aim of this experimental work is to find the ideal wire electric discharge machining (WEDM) parameter combination for processing a novel FeCoCrNiMn High Entropy Alloy (HEA)-reinforced magnesium composite. This composite is developed with varying weights of FeCoCrNiMn at 5%, 10%, and 15% through powder metallurgy. Experiments are performed to ex...

In this work, a newly discovered biomedical grade Magnesium–Lithium–Strontium (Mg–Li–Sr) alloy is machined using electrochemical machining technology. Two main output constraints employed on the research project to evaluate machinability are surface roughness (Ra) and material removal rate (MRR). Changing feed rate (FR), current, electrolyte concen...

In this research, a parabolic trough solar water heater (PTSWH) having helically twisted copper tubes and dimple texturing with an aluminum (AlC) coat was experimentally examined to identify the solar collector’s efficiency, friction factor, convective heat transfer, Nusselt numbers variations, and uncertainty during the test. For this purpose, hel...

In this investigation, Jatropha methyl ester (JME) [JME 20% (volume) + diesel 80% (volume)] was used to adjust the engine’s compression ratio (CR 16, 17, 17.5, and 18) and fuel injection (IT) in the range of 21–25 deg. crank angle (CA) in steps of 2 deg. before top dead center (BTDC), to identify emission profiles of the engine, where the standard...

Amphibious drone is an Unmanned Aerial Vehicle (UAV) capable of performing in both air and under water for application in various fields, such as marine, military, and underwater habitat research, but complexity in the design and provable mathematical model to withstand the arguably swift changes in the forces during the transition phase makes it d...

The experiments with a LiFePO4 battery pack operating at room temperature and with various charge and discharge rates to analyze its durability are described in this study. At a temperature of 23°C with natural convection, the thermal performance of a cylindrical (LFP) battery is experimentally studied. In this study, the battery is fully charged....

This review reports recent developments in solar greenhouse drying systems in conjunction with hybrid technological features and their designs, operations, and economic implications as well as application in agro‐food product processing. Solar energy is one of the most efficient renewable energy sources to be used as an alternative to fossil fuels....

Dwindling of fossil fuels and the global climate change has prompted civilization to look into alternate energy sources. This has led to explore inexhaustible and sustainable resources in the domain of renewable energy. Among all sources renewable energy, biofuel produced from biomass has great prospect for energy security as well as environmental...

Biosensor based biotech device to detect lung cancer

This study explores the influence of Zinc Oxide (ZnO) nanofluids on solar water heaters with Dimple Tubes and Helical Twisted Tape (DTHTT) surfaces. The helical twisted tape design enhances turbulence, improving nanofluid mixing and thermal exchange. Computational fluid dynamics (CFD) validates the efficiency of the parabolic trough solar water hea...

Biodiesel has long been recognized as a viable alternative energy source. In order to enhance the quality, and performance of biodiesel-diesel fuel blends while reducing air pollution from combustion, additives must be employed. The present research aims to focus on the addition of SiO2 novel nanoparticles (at a concentration of 30, 60, and 90 mg/L...

The effect of graphene oxide nanoparticles (50 ppm) and hydrogen enrichment on the Nerium oleander methyl ester-diesel blend is investigated in the present research study using a compression ignition engine in a dual-fuel mode. Biodiesel is derived from Nerium oleander oil, and 20% (v/v) is blended with 80% of diesel fuel. Following that, Novel car...

The present investigation focuses on the fabrication of Copper-High Entropy Alloy (HEA) surface Metal Matrix Composite (MMC) using the solid-state Friction Stir Process (FSP) and the characterization of wear characteristics. Higher hardness values at the level of 770HV were the cornerstone in its selection, in addition to identifying several approp...

Single-camera micro-PIV and PTV measurements were performed in diverging-converging micro-channel to study the suspension flow. In micro-channel, the width of the left and right daughter branch constant at 200 µm. A small quantity of 1 µm dyed particles was mixed with the suspension to measure background fluid velocity with the micro-particle image...

Hydrogen, as an energy carrier, cannot be found in its pure form in nature and must be generated through specific processes to be stored and utilized. The primary methods of producing hydrogen involve electrolyzing water or reforming and gasifying hydrocarbons. Herein, the nature of El‐Oued water on the production of hydrogen by the electrolysis pr...

A solar collector is a device used to absorb energy from the sun by collecting solar radiation and turning it into electricity or heat. The material type and coating of a solar collector are utilized to enhance solar energy absorption. This research combines experimental and computational methods to examine the performance of a parabolic-type plate...

The pursuit of ecologically friendly and sustainable energy solutions is currently at the forefront of scientific study and technological advancements. The replacement of fossil fuels is a serious challenge in diesel engines. Furthermore, several researchers are concerned about lower-rate hydrogen enrichment and NOx emissions. In the current study,...

In this study, friction stir processing (FSP) was used to create new surface properties of the Al 6101-SiC composite, and different types of friction stir process tools are used like cylindrical with thread and conical with thread. /e SEM and EDAX analyses made it evident that texture appeared in FSPed Al6101 both with and without SiC. Due to the r...

In this study, a diesel engine was used to operate with blends of light fraction waste cooking oil (LFWCO) with diethyl ether (DEE). DEE was blended as an additive in the 5% to 20% ratio in steps of 5% each. The test indicates that LFWCO+15-DEE produced optimum results regarding performance and emission. The BSFC for LFWCO+15-DEE was found to be hi...

A rotor shaft under high rotating speeds and heavy loading may establish fatigue damage in terms of cracks due to the long duration of the operation. Analysis of the size and location of the crack in the rotor shaft becomes very difficult, especially while the rotor shaft revolves in a viscous fluid medium. This research is an attempt to measure th...

The present investigation is aimed at maximizing the biooil yield (BOY) from the algal species Spirogyra by solvent extraction method with a nonpolar solvent n-hexane using a Soxhlet apparatus. Also, this present work is aimed at acquiring optimal physiochemical properties such as kinematic viscosity and iodine value of the biooil produced from the...

To augment the heat transfer phenomenon, the infusion of various fin geometry over the heated plate is being investigated by various researchers. Solid fins of the porous medium can enhance the convective heat transfer, providing a higher surface area-to-volume ratio for heat transfer. In this work, the fluid flow pattern and thermodynamic analysis...

The flow boiling heat transfer performance of R22 and R407c, in a microfin tube with a helix angle of 22°and an apex angle of 48°, was evaluated in a study. The study is aimed at investigating the impact of heat flux, mass flux, saturation temperature, and vapor quality on the heat transfer coefficient during flow boiling. Two different saturation...

The aim of the current study is to investigate the combustion, performance, and emission characteristics of a diesel engine adopting graphene nanoplatelets and 10% v/v dimethyl carbonate as fuel additives in a 30% biodiesel and 70% diesel blend. The novel findings are documented in the subsequent sections. The surface modification of graphene nanop...

Spinel metal oxide with an extra crystalline phase is an active way to enhance the performance of the super-capacitor. Herein, a facile hydrothermal approach has been established for synthesizing nanocrystalline NiCo 2 O 4 with an extra NiO phase material as the potential electrode for a supercapacitor. XRD analysis is executed to expose the crysta...

In the passive direct methanol fuel cell (DMFC) operation, the catalyst plays an important role in electrical energy production. Efficient catalyst support increases the power output and simultaneously decreases irreversible losses in the fuel cell (FC). Effective utilization of methanol at the anode end reduces methanol crossover by selecting good...

Nanofluids are generally utilized in providing cooling, lubrication phenomenon, and controlling the thermophysical properties of the working fluid. In this paper, nanoparticles of Al2O3 are added to the base fluid, which flows through the counterflow arrangement in a turbulent flow condition. The fluids employed are ethylbenzene and water, which ha...

In this work, biochar produced from breadfruit leaves was utilized to remove the toxic Congo red dye. XRD, FTIR, and FESEM-EDX were implemented to characterize the biochar. Response surface methodology (RSM) and the Box-Behnken design (BBD) techniques were used to evaluate Congo red’s optimum adsorption efficiency. The adsorption of Congo red was s...

The present work explores a novel method of waste heat recovery (WHR) from the internal combustion (IC) engine and power generation using heat from hot exhaust gas (HEG) and thermoelectric generator (TEG). This system uses TEGs of aluminium oxide (Al2O3), bismuth telluride (Bi2Te3), lead telluride (PbTe3), and silicon germanium (SiGe) for the inves...

Environmental impacts of electricity production through nonrenewable sources are greatly reduced by solar energy production through PV cells. The use of solar energy as an alternative to conventional methods is about to increase tenfold by the year 2050. This considerably increases the number of solar cell wastes for which the recycling processes a...

This paper deals with the numerical investigation of split hemispherical fins mounted staggered over a base plate. The thermal and flow analyses have been carried out to evaluate the Nusselt number (Nu), pressure drop Δ P , and hydrothermal performance factor (HTPF) with air as a medium and Reynolds number ( Re = / 3000 to 15000). The cylindrical f...

A solar water heater has been developed to convert solar radiation into heat for use in residential and commercial settings. The collector makes up the bulk of a solar water heating system. The solar energy is captured by the collector and transferred to the tube that delivers the working fluid, water. In addition to the collector’s tube, which car...

This paper examines the performance of a parabolic type solar collector (PTSC) that uses both plain tube and ribbed surface textured tube channels for elevating the water temperature used for various applications. The performance of a solar water heater is evaluated experimentally. During the experiment, the solar radiation intensity and the feed w...

Solar power is often regarded as one of the most promising forms of alternative energy since it is both sustainable and renewable. It is difficult to utilize and benefit from solar energy in residential and industrial applications because of the intermittent nature of its supply. A solar-based water heating system is efficient for using solar therm...

Both fossil and renewable fuel sources are used widely to produce electricity around the globe. The dependency on fossil fuels for energy leads to the depletion of reserves and various forms of pollution. Coal fly ash (CFA) is one of the most burning issues in the whole world due to its large amount of production in thermal power plants. Every year...

The present work was done to optimize the process parameters of the oil extraction from the algae species spirogyra by using n-hexane as the solvent using the Soxhlet apparatus. The response surface methodology (RSM) and artificial neural network (ANN) were employed to optimize the particle size of the algae powder, dryness level of the algae powde...

Recently, parabolic trough solar collector (PTSC) efficiency enhancement with nanoparticle concentrations has been identified as a potential research area. In this research, the performance of PTSC with dimple tube with TiO2/DI–H2O (De-Ionized Water) nanofluid has been analysed using computational fluid dynamics (CFD). The size of the nanoparticle...

In this research work, dimple texture tubes and silicon dioxide (SiO2) nanofluid were used to analyze the performance parameters of a solar water heater. For this purpose, SiO2 was mixed with deionized (DI) water using an ultrasonic dispersion device to prepare the nanofluids (SiO2/DI-H2O). The size of the nanoparticle was in the range of 10-15 nm....

This study investigates the effect of compression ratio (CR: 16, 17, standard 17.5, 18) and injection timing (IT: 21 ˚CA, standard 23 ˚CA, 25 ˚CA) of a single cylinder direct injection diesel engine having power output 3.5 kW at rated speed 1500 rpm fueled by an optimal Nahar methyl ester blend (NME40). For NME40/CR18, the BTE is improved by 1.09%...

Dimple texturing is the emerging practice to minimize friction and wear in frictional contact pairs. The tribological properties of the frictional contact pairs can be enhanced by optimizing the dimple-texture shape, dimple pitch and area density ratio. In this investigation, the frictional properties of dimple-textured tungsten carbide discs with...

The fabrication of dimple-texture is essential for reducing friction and wear in frictional interaction pairs. The tribological characteristics of the frictional interaction pairs can be improved by controlling the dimple pattern, the depth to diameter ratio, and the area density ratio. In this study, the tribological characteristics of tungsten ca...

In the present investigation the authors have presented a numerical and experimental analysis of a parabolic plate solar water heater using tube in tube type heat exchanger, with dimple inner tube having a different P/D ratio of 3. Also, the authors have used nanoparticles of Al2O3 of size 10-15 nm at volume concentrations of 0-3 % in steps of 1 %...

Forming micro-dimples nearer to the cutting edge on the rack face of the tungsten carbide cutting inserts will positively influence the machinability. However, it is challenging to machine the perfect micro-dimple dimensions by utilizing the available machining techniques. Finite element analysis can be an efficient way to observe the influence of...

The thermoelectric generators (TEGs) are devices that are utilized to convert the heat energy into electrical energy directly and the working principle of this device is based on See beck effect. Thermoelectric power production is a smart method for the direct translation of heat energy into an electrical one. This work explores a method to get the...

Fabrication of micro-dimples at the rack surface closer to the cutting region of the tungsten carbide tool will induce the tribological modifications at the tribo-contact surfaces. The motive of this work is to find the influence of micro-dimples fabricated on the cutting tools during turning operations. Linear arrays of dimple-textures with variou...

The demand for energy is growing tremendously due to the modernization in every aspect of life, hence in order to meet the demands without any lag in the growth and development of the world, an alternative source of energy needs to be found. The best alternative would be biofuels which are extracted from organic compounds. Out of many different org...

Solar based water heater takes on a key role in Energy management. Because of its performance, it is more than electric transformation. It has become the much-demonstrated and built-up tool in a large number of families in India to provide boiling water prerequisites. Solar assisted water heating is a very easy and effective approach to receiving a...

Recently, solar-based technology in fuel film refining is applied to handle bitter water desalination in western China, and this research work has set the foundation for using the solar-oriented surface refining system. The objective of the solar water heater is to enhance the thermal performance throughout the flat plate collector tube on using a...

Nanofluids are generally utilized in providing cooling, lubrication phenomenon, controlling the thermophysical properties of the working fluid. In this work, nanoparticles of Al2O3 are added to the base fluid which flows through the counter flow arrangement in a turbulent flow condition. The hot and cold fluids used are ethylbenzene and water respe...

Photovoltaic (PV) solar panels absorb sunlight as a source of energy to generate electricity. A PV module is a packaged, connected assembly of many photovoltaic solar cells. PV innovation is experiencing a change to another age of proficient, minimal effort items dependent on thin films of photoactive materials. There are various kinds of solar pan...

The tremendous growth of the world towards technology has more usage of the automotive. These leads the need for fuel to cater those huge requirements in transportation. Also, the extinction of the mineral based fuels has led the path into biofuel. The biofuel is obtained from organic compounds like vegetable oils, animal fats, oils from waste. In...

In recent years, developments of new materials are finding more importance in various engineering applications the reason for this development is attributed to the needed for the lighter and stronger materials. The major advantage of lighter and stronger materials is that, it improves the efficiency of the parts made of materials without compromisi...

The present research work is focused on electricity generation from the heat energy which is wasted through the burnt exhaust gas (BEG) of an internal combustion (IC) engine. A horizontal tube straight pass duct (HTSPD) type heat exchanger (HE) with a thermoelectric generator (TEG) was used for energy recovery. The HTSPD type HE was designed, fabri...

The worldwide demand for ultralight multifunctional material is increasing rapidly. One such material is honeycomb structured materials, which is however very costly. Metal foams, especially aluminium foam can be a possible replacement of such materials. Aluminium foam offers a unique combination of various properties as has been already discussed....

Forming of dimple texture patterns on the rack surface of titanium coated carbide cutting inserts will produce a positive impact on tribological alterations at the cutting insert-workpiece and cutting insert-chip interfaces. The aim of this research is to identify the effect of MoS2 coated and uncoated dimple textured carbide cutting inserts compar...