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Singh B.R.,SMS Institute of Technology | Singh O.,Uttar Pradesh Technical University
Research Journal of Applied Sciences, Engineering and Technology | Year: 2011

This study describes new results of the performance evaluations of an air powered vane type rotary novel air turbine/engine. The mathematical model with different parametric values such as; different rotor to casing diameter (d/D) ratios at optimum vane angle of 45° and injection angle of 45°, have been considered and analyzed. The optimum power output is obtained at some typical values of rotor/casing diameter ratios without consumptions of excessive air. The study shows that the optimum power developed under such conditions would be 4.3-5.5 kW (5.84-7.47 HP) at linear expansion (without excessive air consumption) when d/D ratios are between 0.85 to 0.80 and casing diameter is kept 150 mm, injection pressure as 6 bar (90 psi) and speed of rotation as 2500 rpm. This power output is enough to drive any motorbike or light vehicle. © Maxwell Scientific Organization, 2011.


Singh B.R.,SMS Institute of Technology | Singh O.,Uttar Pradesh Technical University
2010 3rd International Conference on Thermal Issues in Emerging Technologies, Theory and Applications - Proceedings, ThETA3 2010 | Year: 2010

On account of growing civilization in the developed and developing countries, use of transport becomes part of life and its population is becoming 2 to 3 times in every 5-7 years. Thus transport sector alone, is causing a faster consumption of hydrocarbon fuel and releases heavy tail pipe emissions, thereby billion tonnes of excessive carbon dioxide is added in the atmosphere every day. This is causing a serious threat to the global warming. Also the fuel reserves are depleting very fast. In 1956, the Marion King Hubbert a noted geophysicist predicted that US Fuel reserves may peak by 1975 and fuel crisis will be noticed by 1995. Thereafter in 2003, Aleklett and Campbell expressed their views that most of the countries will pass through peak oil days by 2010-12 and fuel consumption will reach to 80% by 2020-30 with the current rate of consumption. In view of growing challenges, researches are continued to supplement the energy by renewable resources and alternate energy to sustain green house hydrocarbon fuel. The major thrust is being given to explore wind energy, hydro-power, tidal and nuclear power generation. Efforts are also being made for storage of the clean energy by conversion system and its better utilization. This paper describes especially conversion system of atmospheric air proposed to be compressed by alternative energy sources like wind, solar energy etc. or disaster energy sources and stored in energy storage system. Such energy can be reused as clean energy source for running domestic appliances and light vehicles as zero pollution fuel source and ultimately check the global warming issue up to some extent. © 2010 IEEE.


Singh B.R.,SMS Institute of Technology | Singh O.,Uttar Pradesh Technical University
International Journal of Engineering and Technology | Year: 2010

Globally faster consumption of hydrocarbon fuel in the transport sector is posing threat to environmental and ecological imbalances and thereby depletion of hydro-carbon fuel is causing another challenge to oil reserves. In view of these issues extensive researches are being carried out to explore the alternative energy source and or to find out appropriate energy conversion system. The atmospheric air once compressed, it is found as potential working fluid to produce shaft work for an air turbine and releases almost zero pollution in the environment. This paper details the mathematical modeling of a small capacity compressed air driven novel multi-vanes type air turbine. Effect of expansion of high pressure air collected between two consecutive vanes at different vane angles and varying inlet pressure have been analyzed here. The study shows that the total shaft power is found optimum at injection angle 60° when vane angle Θ=36° (10 vanes) and it reduces at injection angle 45° when vane angle Θ=51.4° (7 vanes) and further goes down at injection angle 30° when vane angle Θ=60°-72° (6-5 vanes), for injection pressure 6 bar and speed of rotation 2500 rpm.


Singh B.R.,SMS Institute of Technology | Singh O.,Uttar Pradesh Technical University
World Academy of Science, Engineering and Technology | Year: 2010

Worldwide conventional resources of fossil fuel are depleting very fast due to large scale increase in use of transport vehicles every year, therefore consumption rate of oil in transport sector alone has gone very high. In view of this, the major thrust has now been laid upon the search of alternative energy source and also for cost effective energy conversion system. The air converted into compressed form by non conventional or conventional methods can be utilized as potential working fluid for producing shaft work in the air turbine and thus offering the capability of being a zero pollution energy source. This paper deals with the mathematical modeling and performance evaluation of a small capacity compressed air driven vaned type novel air turbine. Effect of expansion action and steady flow work in the air turbine at high admission air pressure of 6 bar, for varying injection to vane angles ratios 0.2-1.6, at the interval of 0.2 and at different vane angles such as 30°, 45°, 51.4°, 60°, 72°, 90°, and 120° for 12, 8, 7, 6, 5, 4 and 3 vanes respectively at speed of rotation 2500 rpm, has been quantified and analyzed here. Study shows that the expansion power has major contribution to total power, whereas the contribution of flow work output has been found varying only up to 19.4%. It is also concluded that for variation of injection to vane angle ratios from 0.2 to 1.2, the optimal power output is seen at vane angle 90° (4 vanes) and for 1.4 to 1.6 ratios, the optimal total power is observed at vane angle 72° (5 vanes). Thus in the vaned type novel air turbine the optimum shaft power output is developed when rotor contains 4-5 vanes for almost all situations of injection to vane angle ratios from 0.2 to 1.6.


Singh B.R.,SMS Institute of Technology | Singh O.,Uttar Pradesh Technical University
World Academy of Science, Engineering and Technology | Year: 2010

This paper deals with new concept of using compressed atmospheric air as a zero pollution power source for running motorbikes. The motorbike is equipped with an air turbine in place of an internal combustion engine, and transforms the energy of the compressed air into shaft work. The mathematical modeling and performance evaluation of a small capacity compressed air driven vaned type novel air turbine is presented in this paper. The effect of isobaric admission and adiabatic expansion of high pressure air for different rotor to casing diameter ratios with respect to different vane angles (number of vanes) have been considered and analyzed. It is found that the shaft work output is optimum for some typical values of rotor/casing diameter ratios at a particular value of vane angle (no. of vanes). In this study, the maximum power is obtained as 4.5kW - 5.3kW (5.5-6.25 HP) when casing diameter is taken 100 mm, and rotor to casing diameter ratios are kept from 0.65 to 0.55. This value of output is sufficient to run motorbike.

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