This article presents a study on the performance characteristics of a Francis turbine operating with various guide vane openings to determine the best operating point based on unit quantities. The guide vane openings were specified based on the width between the vanes at their exit, i.e., 10 mm, 13 mm, 16 mm, and 19 mm. The performance characteristic curves of the Francis turbine—head versus speed, torque versus speed, discharge versus speed, and efficiency versus speed—were obtained at various input power and guide vane openings. From these data, unit curves were plotted and the corresponding best efficiency points were obtained. The highest efficiency of 50.25% was obtained at a guide vane opening of 19 mm. The values of head, discharge, speed, and output power at BEP were 7.84 m, 13.55 lps, 1250 rpm, and 524 W, respectively.

For any nation to develop power generation plays a crucial role. The performance of a power plant is analyzed by using the Energy balance and it is done by using the first law of thermodynamics. But to know how much energy is being utilized in reality exergy analysis has to be performed which is also called as second law of thermodynamic analysis because the vital parameter quality is being considered in the exergy analysis. this paper deals with the exergy destruction calculation by performing exergy analysis for various components for a 210 mw plant of Vijayawada thermal power station(stage-1 unit-1) and from the analysis it is clear that exergy destruction is more in condenser

Shell and Tube Heat Exchangers (STHEs) plays a crucial role in an effective design of Organic Rankine Cycle (ORC) power plants.The main aim of this research work is to design a cost-effective ORC in order to exploit low to medium temperature geothermal fluid or low grade industrial waste heat. In this research work, modified Kinetic Gas Molecule Optimization (KGMO) algorithm was developed forfinding the optimized parameter settings of the power plant. In modified KGMO algorithm, feedback learning stage was included for improving the fitness of individual worst particles. In addition, the proposed optimization algorithm was tested on two dissimilar fluids such asR245fa and R134a in order to show the effectiveness of proposed scheme. The experimental investigation showed that the proposed scheme effectively improved the heat exchanger performance as related to the existing schemes.The enhancement factor of proposed scheme was 2.8063 for R245fa fluid and 1.9346 for R134a fluid, which was better compared to the existing schemes; KGMO and Bell-Delaware method.

Building introduction is a critical structure thought, mostly concerning based on the wind and radiation from the sun. In transcendently hot humidity based locations like Malaysia where the sunlight is existing overall year which gets daylight all year around, structures of the buildings have to be situated to limit sunlight based gain and amplify regular ventilation. This paper represents an investigate on the impact of building introduction based on the absorption of sun radiation at outside divider, shifter zone proportion at the coated window and regular ventilation during the working in humidity locations. The Raman building is located in AEC Campus, Penang which is a mechanical business building, constructed in the form of east west ways. For the contextual investigation the both east and west bearing rooms were considered. By utilizing the lumberjack BABUC/M, the contrast among the “in” and “out” speed and temperature of the air in both of the rooms were calculated which information’s have been dissected and researched. The outcome of this study demonstrated that the indoor temperature is expanded based on the impact of the east window which is better than west window. The west window is identified as suitable for the ventilated or unventilated rooms.