K. Mylsamy

Adithya Institute of Technology · Mechanical Engineering

In recent days, solar energy has been deliberated to be the predominant source of energy, which extends the hope of satisfying the ever-growing energy demand. Among the different forms of solar energy systems, solar thermal systems such as solar water heaters play a key role in satisfying the hot water demands of households, commercial sectors, and...

Numerous research work undertaken, to trim down the Global Warming and to protect the Ozone layer depletion aimed at, to utilize the proposed nano refrigerants in the existing refrigeration processes. The investigation on the possibility to explore an innovative alternative refrigerant and toting with nano additives to the refrigerant and studying...

This work explores the opportunities to address the setback in thermal energy storage of solar-based water heaters by uniting it with a suitable hybrid-nano composite phase change material (HNCPCM) in a static mode of operation. The experiments were conducted on a natural circulation all-glass evacuated solar water heating system (AGSWH). The inves...

This work examines the enhancement in thermal storage properties of the new kind of nano-embedded phase change materials (NEPCMs), which were prepared by diffusing CeO2 nanoparticles in three mass fractions such as 0.5%, 1.0%, and 2.0% in paraffin, respectively. The synthesized NEPCMs had experimentally tested with field emission scanning electron...

This paper investigates the amendment of thermal conductivity of the commercial grade paraffin while adding various weight percentages of Si3N4 nanoparticles in it. The paraffin has been synthesized with four different weight percentages of nano-Si3N4 particles that are 0.5%, 1.0%, 1.5% and 2.0% of weight, respectively. The surface morphology of th...

Nano sized particles have been used in variety of applications due to their unique behavior and distinguished properties at the nano-scale. In this present work, nanoparticles of zinc oxide (in a proportion of 0.5%, 1.0% and 2.0% of weight) were embedded with the commercial grade paraffin and samples were prepared. Then, thermal characteristics of...

Paraffin is widely finding its application as thermal energy storage material, since they possess superior thermophysical properties. However, they have a setback in terms of their thermal conductivity. Hence, this paper is made an attempt to improve the thermal properties of the paraffin by embedding nano-TiO2 particles in paraffin. Five samples o...

This paper presents the investigations on improving thermal conductivity of the paraffin wax using copper oxide (CuO) nanoparticles to be used an efficient thermal energy storage material. Five samples of paraffin wax were synthesized by dispersing 0, 0.5, 1.0, 1.5, and 2.0 weight percentages of CuO nanoparticles in paraffin wax. Surface microstruc...

This paper experimentally investigates the thermal management and performance improvement of solar PV panel with the help of a Phase Change Material (PCM). The two solar PV panels of 30 Watts nominal power and same configuration were selected for the experiments. The candle making wax (CMW) was chosen to be the PCM. One PV panel named as PV1, which...

Thermal energy storage becomes a greater challenge in thermal conversion systems such as solar thermal systems. The energy demand and supply may not be matched at the most point of time, hence requires efficient thermal energy storage. Candle Making Wax (CMW) is one among the potential material to store energy by means of changing its phase. Still,...

This paper investigates the influence of low mass% SiO2 nanoparticles on the thermal properties of the paraffin wax for solar thermal energy storage applications. The four nano-SiO2/paraffin PCM samples containing, 0.0 mass%, 0.5 mass%, 1.0 mass%, and 2.0 mass% of SiO2 nanoparticles in paraffin wax were synthesized. The prepared nano-SiO2/paraffin...

Solar water heaters with evacuated tube collector (ETCs) are becoming more popularly used because of their efficient operation in collecting solar energy with minimum losses compared to other types of collectors. Still, they are deficient in one way that the top half of the cylindrical tubes are only exposed to solar radiation and bottom half becom...

This present work contributes to the improvement in thermal energy storage capacity of an all-glass evacuated tube solar water heater by integrating it with a phase change material (PCM) and with a nanocomposite phase change material (NCPCM). Paraffin wax as PCM and a nanocomposite of paraffin wax with 1.0 mass% SiO2 nanoparticles as NCPCM had been...

Solid wastes generated from manufacturing industries are increasing at an alarming rate and it is consistently increasing. One such industrial solid waste is Used Foundry Sand (UFS). On the other hand, fine aggregates involved in the concrete are generally river sand, which is scarce, high cost and excavation of the river sand that promote environm...

In the wake of current energy scenario, major research is focused on sustainable energy solution with major emphasis on energy efficiency and use of renewable energy sources. Diesel engines have proven their utility in the transportation and power sectors due to their higher efficiency and ruggedness. Depending upon the availability and production...

The natural fibers nowadays play a major role as reinforcement in composites due to their important properties like lightweight, biodegradability and non-toxicity. Borassus fruit fiber is one such type possessing high cellulose which is inexpensive and available in plenty. The Borassus fruit fibers were extracted and its physical, chemical and mech...

The weight reduction with enhanced strength is the primary requirement of Automobile Engineering field. In two wheelers the bumper facilitates the crash worthiness during accidents. They are nowadays made from synthetic fiber reinforced polymers. The synthetic fibers are not degradable and of high cost. In the present work, an investigation has bee...

An experimental study to determine the wear behaviour of Agave fibre reinforced epoxy composites (AFEC) has been conducted. Epoxy composites reinforced with Agave fibres of length 3, 5 and 7mm namely were prepared by hand lay up and open mould technique. Wear behaviour of the composite was responsive to varied load, fibre length and sliding velocit...

Composites based on short Agave fibres (untreated and alkali treated) reinforced epoxy resin using three different fibre lengths (3 mm, 7 mm and 10 mm length) are prepared by using hand lay up and compression mould technique. The materials were characterized in terms of tensile, compressive, flexural, impact, water absorption properties and machina...

The mechanical properties such as tensile, compressive, flexural, impact strength and water absorption of the alkali treated continuous Agave fibre reinforced epoxy composite (TCEC) and untreated continuous Agave fibre reinforced epoxy composite (UTCEC) were analysed. A comparison of the surfaces of TCEC and UTCEC composites was carried out by dyna...

This paper aims at introducing new natural fibers for use as fillers in a polymeric matrix enabling production of cost-effective, biodegradable, and lightweight composites for load carrying structures. Agave (Agave americana) leaf fiber, one such kind, is rich in cellulose, relatively inexpensive, and abundantly available. In this study, investigat...