• Energy Research
• Open Access close
• Closed Access close
• Open Source close
• IN close
• Materials Today Proceedings close

Abstract Heat exchanger is one the most essential heat transfer equipment in thermal area. On that heat transfer and effectiveness enhancement by using nano particles is recently developing method. In this study enhancement of effectiveness focused by using nano particles mixed with cold fluid used in the heat exchanger. Hot fluid is water with 200 °C flow into Counter flow heat exchanger and the cold fluid is mixed with 5% of nano particles which is combination of Aluminium oxide and Magnesium oxides with equal proportion. The inlet temperature of the cold fluid is maintained at 30 °C throughout the experiments. The temperatures of each place need to measure are obtained by the thermocouples connected on the particular portion of the setup. There is different mass flow rate of cold fluid passed in each successive experiment for the same mass flow rate and inlet temperature of the hot fluid. The consequent exit temperatures of hot and cold fluids were measured and considered for the mathematical calculations of the outcome of the experiments.

Abstract There is a demand for economic, affordable cost manufacturing and Improvement in power conversion energy of DSSC has made most researches finding for alternative ways to optimize each components of the cell to improve its efficiency. This paper reviews alternative ways to manufacture and synthesizing purpose for DSSC. The DSSC is one of the example for renewable energy power generation. This paper reviews the manufacturing or method by utilizing the FTO coated glass (Dr. Blade method) for applying the paste on glass substrate for effective sunlight harvesting.Photoanode prepared by ZnO powder, Counter electrode prepared by the combination of Electrolyte (Ki + I2 + Acetonitrile). Scanning electron microscopy revealed a material with an crust and trough structures like morphology. With X-ray diffraction analysis, With the help of thermal imager found the emittance and temperature on the DSSC surface , X-ray Florescence’s used for finding components present in the semi conductiveoxide. We can measure the Open circuit voltage is 35.5 and Short circuit current 0.024 by connecting in series with DSSC by using Multimeter, fill factor is 1.477 and efficiency is 0.164.

Abstract Synthesis and characterization of thin-film based photovoltaic materials attract with great research interest for the past few years as the efficiency of the photovoltaic cell can be improved systematically with a proper functionalization of the films and making multilayers. We have synthesized Cu-doped CdTe thin films with different doping concentrations using the PVD technique. The structural, morphological, and optical properties of synthesized films were carefully investigated. Our study shows that all the prepared films are polycrystalline with a cubic structure. The morphological studies (SEM) reveal that all the films are crack and pinhole-free. The composition and stoichiometry of the film were confirmed by energy dispersive spectroscopy (EDS) study. The optical characterization of the samples is performed by using UV–VIS -NIR spectrometer. The result shows interesting optical behavior of the film suitable for solar cell applications.

Abstract To enhance the energy efficiency of an air-conditioning system air-to-air plate heat recovery ventilator can be installed to utilise the exhaust air for sensibly cooling of the ambient air. This pre-cooled intake air under low moisture content can be further cooled with a regenerative evaporative cooler. Therefore, an experimental investigation was conducted by fabricating a combined air-to-air heat exchanger and regenerative evaporative cooler test rig. The performances under low and high humidity were evaluated. Under low humidity, air-to-air heat exchanger works as sensible heat recovery ventilator, and under high humidity, it works as a dehumidifier for the regenerative evaporative cooler. The dynamic performance during the transition in humidity conditions and steady performance were studied. The results showed that the temperature below the wet-bulb temperature of intake air is achieved under low humidity. Under high humidity, condensation takes places for the intake air, increasing the latent cooling and decreasing the sensible cooling. Minimum temperature and humidity ratio of 19.9 °C and 17.05 g/kg were obtained respectively.

Abstract In our venture work, soil was examined by utilizing optional lime and elastic tire crushed or powder as added substance. As the tires are produced with engineered elastic, removal of squanders from the elastic tire become troublesome. It was roughly assessed that 60–70% of waste tires are arranged in different territories. To keep away from these squanders amassing, use of elastic tire powder as soil settling operator is tentatively examined. In the current examination, an auxiliary lime was included into the dirt at five distinct rates like 5%, 10%, 15%, 20% and 25%. The Geotechnical Features of balanced out where soil is are expanded by expanding level of auxiliary upto lime 20.0%. At that point expansion of elastic tire crush in dirt displays alluring adjust quality. Elastic tire crush was included into the dirt at different rates like 3%, 6%, 9%, 12% and 15.0% of the dirt alongside 20.0% of optional lime. Expansion of 12 % of elastic tire crush and 20.0% of auxiliary lime with the heaviness shows the soil continuous upgradation in quality of clayey soil.

Abstract Conventional vehicles depend on crude energy extracted from the fossil fuels such as diesel and petrol, which undergoes internal combustion to liberate the chemical energy stored inside the fuel. This energy is then converted into mechanical energy inside the engine to produce the necessary work for propelling the vehicle accompanied with release of incomplete combustion products such as CO and CO2. Now days a lot of research is concentrated on developing more efficient and eco-friendly ways of generating the energy for propulsion so as to reduce the amount of carbon footprint in the atmosphere. The present work is an effort in the direction of generation of energy for propelling the vehicles in an environmental friendly way by utilising compressed air. During the process of compression, work is being done on the air, which causes an increment in the total pressure of the air. This increment of the total pressure is stored as the energy inside the compressed air, which will be utilised for the running the vane of the motor to generate the necessary work for propulsion. The present work utilises the compressed air at 3 atm to run the motor. The work output of the motor for different vane angles was measured for various casing diameters of 50 mm, 100 mm, 150 mm respectively and the results were plotted. The average time of running of the motor was found out to be 7 h.

Abstract This paper studies the thermal performance of a single basin solar still whose five sides are exposed to ambient and supplies are also providing to connect the glasses to augment the intensity of occasion solar radiation on the range. The experimental analysis of thermal techniques (Solar Nano-basin still) in sullage water treatment fuzzy logic techniques are used to produce clean water from energy of sun. Intension of the sullage water into clean water has been performed of clear sunny day on summer and winter seasons at Vel Tech Multi Tech Dr.Rangarajan Dr. Sakunthala Engineering College. It is an innovative to reduce the fluid waste is called water quality conversion and one of the days in system has been given the 24 hr cycle, the total drip production is found to be 7.624 kg/m2day and without drip 5.254 kg/m2day and Overall efficiency is 45%. As compared to mixed nano-black paint, selective surface coating results in significantly higher oven temperatures (up to 66 oC).