www.ijsrp.org Design and Computational Analysis of 1 kW Tesla

International Journal of Advance Research and Innovative Ideas in Education, 2017

Turbo-machine applications have a several alternatives, each of which emanates to help build the world of power. One of these ideas is 'The Tesla turbine', which is also referred to as a bladeless turbine or friction turbine. A turbine is a machine that transforms rotational energy from a fluid that is picked up by a rotor system into usable work or energy. The principle of Tesla turbine comes from two main rudiments of physics: Adhesion and Viscosity, instead of the conventional energy transfer mechanism in traditional turbines. It is referred to as a bladeless turbine because it uses the boundary layer effect and not a fluid impinging upon the blades as in a conventional turbine. In this Analysis by the means of changing mass flow rate and proper design of bladeless rotor the efficiency is to be calculated and the analysis of viscous fluid that can be transferred is to be measured. The Turbo machine will also be analyzed as a turbine for a viscous fluid transfer and will be compared with the previous cfd analysis.

Journal of the Institute of Engineering, 2014

2020

This paper presents the performance of a radial discharge centrifugal pump operated in turbine mode. Increasing environmental concerns and depleting fossil fuel reserves has shifted the focus of the world to explore various possible renewable energy alternatives for energy generation. There are many villages in developing countries which are still deprived of electricity. The quality of life in these villages definitely suffers. Hydro power is the cheapest and clean renewable energy source. The electricity generated at large hydro power projects is transmitted through the grid system. The high terrain remote villages where grid supply is not feasible due to economical reasons remain deprived of electricity. Many of these high terrain remote village populations cannot afford expensive technology for standalone power generation. Amongst these villages, those which are blessed with natural streams of water and rivers, standalone hydro power generation is the best option. The cost of co...

2010

Growth in global demand of clean energy has also increased hydropower development activities. This has also increased the necessity of overall efficiency improvements in hydropower plants for producing larger power with same site conditions. Efficiency improvement by design optimization of turbines is primary task in elevating performance of any hydropower projects. Institutional laboratory test facilities, which are expensive and demand high level of proficiency, are needed to certify performance of turbines. Due to the lack of well equipped and standard test facilities at South Asia region, efficiency measurement of turbines is mostly done at project sites. Kathmandu University (KU) is an autonomous, not-for-profit, non-government institution dedicated to maintain high standards of academic excellence. With technical support from Norwegian Institute of Science and Technology (NTNU), KU has been upgrading its competency to support the ambitious plan of Government of Nepal (2010) to develop 38,000 MW of Hydropower in 25 years. KU is collaborating with national and international experts and institutions for this venture. Turbine Testing Laboratory (TTL), under construction at KU with financial assistance from NORAD, Norway, aims to deliver its facilities to local and international developers and consultants by the mid of 2011. With 30 meter open head and 150 meter closed head, TTL is capable of testing different range prototypes up to 300kW and conduct model tests for larger sizes. Internationally recognized certification endorsed by International Electrotechnical Commission (IEC-60193) will be maintained at TTL for model tests. The technical support for the laboratory will be provided by Waterpower Laboratory, NTNU which has experience of turbine testing for almost 100 years. In coming years, TTL intends to include state of the art technologies such as Computational Fluid Dynamics (CFD), Finite Element Method (FEM) analysis for new design or upgrading existing turbines, innovative design of hydro-mechanical components for power plants, and specialized trainings to engineers and technicians. This paper elaborates the utility of TTL in South Asia region with its objectives and specifications. Scope and partnerships for developing a center of excellence at TTL for R&D of hydraulic turbines are also presented. Need and possibilities of creating a new turbine manufacturer in Nepal, by the combined effort of academic institutions and manufacturing industries has been analyzed. Beside these, the progress of design optimization of Francis turbine at Jhimruk power plant for reduction of adverse impact of sediment erosion has been discussed.

2011 IEEE Symposium on Industrial Electronics and Applications, 2011

Most hydropower plants in Nepal are run-off type, which cannot supply the designed amount of energy during dry season and peak demand period resulting in energy crisis. Therefore, pumped storage plants can be an ideal solution to meet the current energy needs of the country. Most of these storage plants make use of a single unit acting both as turbine as well as pump; hence aptly called Reversible Pump Turbine (RPT). This paper explains the new application concept for use of such RPTs as auxiliary unit to supplement the main power unit in hydropower plants of Nepal. It also summarizes the design process of such runner with reference to the parameters available at Chilime region in central part of Nepal. The design is performed in two steps. The first step is an analytical design, which gives an initial geometry of the RPT runner. The process resulted in a runner of larger size than a normal Francis runner for same parameters since it has to work as pump as well. The next step is an optimization procedure involving CFD analysis under which the simulation of the RPT in turbine mode yielded an efficiency of 88.71%. The detail laboratory experiments on a model RPT will be performed later to validate the results from CFD and determine the characteristics of the designed runner at different mode and operating conditions.

This paper has been written to investigate the possibility of using and developing hydrokinetic power to supply reliable, affordable and sustainable electricity to remote, rural and isolated areas of Uttarakhand, where reasonable water resources are available. Apparently, most hydrokinetic studies mainly concentrate on large-scale technologies such as waves, tides and ocean current applications. This paper explains the current status of hydrokinetic river technology for rural applications. A model of a hydro kinetic turbine of 1kW rating capacity has been discussed with detail design specification and power output calculation. The concept of double casing for better pressure drop is introduce and a two rings of turbine blade with four blade in each ring is attached with shaft which drive a generator by chain drive mechanism. Graph for power output with water velocity, water density, numbers of blade angle has been discussed. Keywords--- Hydro-kinetic turbine, double casing, remote power plant, power generation devices, effectiveness in rural areas

ABSTRACT— Any electricity generation power plant consists of turbine connected to synchronous generator, which is connected to public grid. The amount of the power generated and the quality of the power directly or indirectly depend on the turbine. Therefore during the installation hydroelectric power plant the analysis and consideration of turbine is very important. In this paper the type of turbine from different perspective views, modeling and analysis of hydroelectric turbine is addressed. Using MATLAB SIMULINK the characteristics of hydro turbine presented

Hydro Nepal: Journal of Water, Energy and Environment, 2014

International Journal of Advance Research and Innovative Ideas in Education, 2017

The first bladeless turbine, also known as a friction turbine, was designed and manufactured by a Serbian engineer and inventor Nicola Tesla in 1913 (Tesla, 1913). It is a non conventional bladeless turbine. This turbine works on the principle of boundary layer effect. It consists of a number of parallel discs fixed on a shaft with gaps between them. Fluid enters tangentially on discs inside casing. Energy in terms of momentum is transferred from fluid to discs due to viscous and adhesive forces. There is much work has been covered in first half of twentieth century but research publication work and study has been done in later half. Some papers suggest modifications while some provide explanation for different parameters and efficiencies. This paper gives introduction, principle of operation, construction and working.