• Energy Research

This article presents the design of the test station, which is accessible for the testing of electric bicycles. In this process, a low-power Brushless Dc traction vehicle or a high-powered motor sc...

Abstract Production of methyl ester from sunflower and soybean oil mixture is performed throughout a catalyzed transesterification procedure. The significance of the four reaction parameters such as methanol to oil ratio, catalyst concentration, mixing speed, and reaction time and their combined effect on biodiesel yield is investigated through twenty-nine of the pre-designed and performed experiments. Box-Behnken design (BBD) based on response surface methodology (RSM) was applied for process optimization. A quadratic regression model was established for biodiesel yield prediction with a coefficient of determination R2 of 0.9861. An maximum biodiesel yield of 93.38% is accomplished at 203.5:1 ml:l methanol to oil ratio, 0.57 wt% catalyst concentration, 52 min reaction time and 530 rpm mixing. Obtained results show that there is a superior compatibility among the calculated yield of 93.38% and the experimental data of 93.2%. The estimated biodiesel fuel properties met with the American society for testing and materials (ASTM) D6751 standards. Engine operating parameters optimization have been executed using central composite design method (CCD) to achieve an optimum break thermal efficiency of a lone cylinder DI-engine fueled by biodiesel/diesel mixtures. Engine input parameters were considered as engine load and blends percentage for the optimization of engine response represented in break thermal efficiency (BTE), unburned hydrocarbon (UHC), and Nitrogen oxide (NOx) emissions. Examination of inconsistency (analysis of variance) ANOVA indicated that the quadratic representation were statistically important. RSM optimizer results indicated that the best possible values of BTE, UHC, and NOx were 13.656%, 120.7748 ppm, and 234.8926 ppm, respectively, at the maximum value of biodiesel mixture of 70% and break power of 2.05 kW. A validation test was performed and the error percentage is found to be within the range of 5%. The error percentage for BTE, UHC, and NOx was found to be 3.34%, 1.35%, and 2.31%, respectively.

Abstract Drinking water is a necessity not only for humanity but also for the all living organisms available in the earth today. But the availability of the potable water is not in abundant amount; hence clean water is scarce in the world today. Solar desalination system is used to turn the saline water into the freshwater by use of sunrays. Solar still is a device which can be employed for desalination. As the daily productivity of solar distiller is low so, multiple techniques have been used by various researchers to improve its productivity. But work done on the fins to enhance the distillate output is not much. Fin is a low-cost heat transfer enhancement which is used by many researchers in the solar thermal applications. Present review paper shows the use of fins in solar still and how it can be used to enhance the distillate output of solar still. At last, a table is also presented to show the use of fins to increase the distillate output alone and with the use of certain materials.

The enhancement of yield of solar still (SS) is viewed as very significant due to the production of the potable water. It is also considered as uncomplicated device for desalination. There is also ...

This study looks into artificial intelligence methods for scaling solar power systems, such as standalone, grid-connected, and hybrid systems, in order to lessen environmental effect. When all essential information is provided, conventional sizing methods may be a feasible alternative. It is impossible to apply typical procedures in instances where data is unavailable. The new suggested artificial intelligence model employing multilayered perceptrons is employed for sizing solar systems, and this model functions on current photovoltaic modules that incorporate hybrid-sizing models; so, they should not be rejected entirely. In this work, the convergence speed of the proposed model for single diode, two diodes, and three diodes are the comparison factors to estimate the performance of the proposed model.

The present research paper shows the use of a flash evaporator coupled with the solar desalination system to improve the distillate output. Here solar desalination system consists of a solar water ...

At this present research paper, solid particles jet into turbulent cross-flow trajectories and turbulence structure adaptations are presented for a non-reacting (No combustion) flow conditions. Add...

Abstract The necessity of freshwater is rising due to the expanding residents as well as fast urbanization. Besides, concerning the drinking purpose, clean water represents a very crucial role in several applications like batteries, pharmaceuticals, automobiles and different research and development laboratories. There are many freshwater generation techniques available, but solar distillation is one of the most natural and cheapest methods. Present review paper exhibits the researchers work on the tubular solar still to enhance the distillate output. It covers the working principle and several metrological parameters like the temperature of the water, solar intensity, glass cover temperature etc. Various techniques to improve the distillate output of tubular solar still also included in the present review paper. At last, several future researches works on tubular solar still also included in this review paper.