CSVTU Research Journal

Flow and Performance Characteristics of S- Shaped Diffuser

2022-12-25T09:26:51+00:00

This paper presents the effect of turning angle on the first and second curvature of S-shaped diffusers, one with a square inlet and rectangular outlet having a centre length of 800 mm and an area ratio of 2.5. A computer program based on the finite volume technique, using the Standard k–ε turbulence model, has been adopted and modified to predict the flow. The measurements of pressure distributions of the airflow in S-shaped diffusers are performed for twelve models of different turn angles such as 30º/30º, 60º/ 60º, 90º/ 90º, 120º/ 120º, 150º/ 150º, 180º/ 180º, 60º/90º, 90º/ 60º, 90º/ 120º, 120º/ 90º, 120º/ 150º, 150º/ 120º. In this paper, results are shown in the form of pressure recovery coefficient and pressure recovery efficiency. Furthermore, pressure and velocity contours have been developed for the entire study of all twelve designs of the diffuser. The results showed that the diffuser pressure recovery coefficient is strongly affected by the geometrical parameters of the S-shaped diffuser and inflow Reynolds number. The turning angle plays an important role in improving the S-shaped diffuser's performance. In this study it is concluded that diffuser 90º/ 120º performs best, it gives the highest pressure recovery coefficient and efficiency, whereas diffuser 30º/30º gives the lowest performance parameters.

Analysis The Process To Improve Mechanical Properties Of Hot Rolled Micro Alloyed High Tensile Steel By Normalizing Rolling Or Online Process

2022-12-27T06:00:28+00:00

This investigation is a holistic approach to analysis the process & its various aspects depend upon the viability& process reliability, of online process of structural plate steel heat treatment.

This work deals with the comparison of properties of micro-alloyed high tensile steel plates, obtained by using a on line process with offline process in plate mill of bhilai steel plant, without enriching its chemistry and without post heat treatment process generally called as normalizing rolling.

Online process: - This refers to a mechanical heat treatment process in which no need of post rolling heat treatment, such that the process need to control the temperature of the plate when rolled, results in improvement of mechanical properties & grain growth similar to normalized plate post rolling. So it enhances the less time manufacturing reducing production cost & increasing productivity.

Plate performance in terms of impact strength or toughness measured by impact Charpy test and in terms of ductility measured by bend test, the values of yield strength taken by performing test

Design & Development: An Electric Bicycle with Solar Energy

2022-12-23T09:18:50+00:00

This is a method for upgrading traditional bicycles with an electric hub motor powered by a battery, as well as converting electric bicycles into solar-powered versions. The solar panels, mounted on the bicycle and hub motor, allow for easier riding. A solar controller is connected to the battery to convert solar energy into electricity, which is stored in the battery and used to power the hub motor. While traditional bicycles require manual pedaling and motorized bicycles rely on fuel, electric bicycles can only run for a limited time. The proposed solar bicycle aims to address these weaknesses by using renewable solar energy to extend the bicycle's range and automatically recharge when not in use. The high-torque motor of the solar bicycle is powered by a portable solar panel, which absorbs energy from the sun and directly powers the motor if the energy meets the required amount. If not, the motor draws on the power stored in the battery. When the bicycle is not in use during the day, the solar panel charges the battery for future use. This system aims to make bicycles more efficient and sustainable.

The Implementation of Lean Six Sigma (LSS) to reduce Coupler movement time in Wagon Workshop

2022-08-16T14:42:52+00:00

The industrial and service industries are both affected by today's quickly shifting economic environment. As a result of globalization, manufacturing and service industries are now susceptible to worldwide competition. These businesses face a number of challenges, including shrinking profit margins, customer demand for high-quality products with short lead times, and product variety. Every industrial company today is under enormous pressure to reduce lead times. The benefits of lean six sigma are being used to enhance productivity, quality, and cycle time in manufacturing and service industries all around the world. The use of the Lean six sigma principles and the usage of the DMAIC tool lower the cycle time of coupler movement time in this research. The various time durations involved in movement are recorded and evaluated on Mintab17 software for root cause determination and solution. By using LSS, the movement time, which was 120 minutes in July 2020, was reduced to 80 minutes in just three months. Because LSS implementation is a tool for continual improvement, there is a lot of growth in the future.

Parametric study on the behaviour of RCC box girder bridge deck using IRC Codal provisions in CSI Bridge

2022-12-23T10:30:47+00:00

In today’s modern highways due to its creative and cost-effective approaches to over passage, under passage, separation structures, and bridge deck systems, box girder bridges are among the most often utilised bridge deck systems. Various structural components make up a conventional box girder bridge. The current study focusses on parametric analysis of RCC box girder bridge deck. Many literatures suggest that finite element analysis is most suitable method for evaluation of box girder deck sections. Six box girder bridge models with varied depth and number of interior girders with constant span lengths is modelled in finite element method (FEM) based software CSI Bridge 2016 and is used for the parametric study. The cross section for varied depth consists of single cell RCC box section with constant span length of 30m. Static analysis of each model is done for IRC 6 load combinations, self-weight, super imposed dead load and impact factor. The bending moment (BM), shear force (SF) and displacement for the models are recorded. From the results it is found that BM, SF increases for increment in overall depth of the section but deflection reduces.

Recent And Past Development In The Investigation Of Regular And Irregular Shaped Structures

2022-12-23T10:34:03+00:00

This paper highlights the detail discussion of past researcher by categorizing the review on seismic analysis based on regular and irregular shape building. The review concludes that after careful observation there are lot of experimental and numerical investigation may be done on different shape of building and many researchers has already been done work on regular building but not given remedies hence there is need of application of retrofitting such as shear wall, bracing in structure as building material by the structural engineers.