Search Results - subject:"Impulse turbine"

Computational and experimental investigations of an omni-flow wind turbine

Ying, P.; Chen, Y.K.; Xu, Y.G.; Tian, Y. - In: Applied Energy 146 (2015) C, pp. 74-83

Both numerical and experimental studies were conducted to evaluate the performance of an omni-flow wind turbine designed to provide renewable electricity on the top of urban buildings like skyscrapers. The numerical approach was based on Finite Volume Method (FVM) and the turbulence flow was...

Persistent link: https://www.econbiz.de/10011263375

Multiple surrogate based optimization of a bidirectional impulse turbine for wave energy conversion

Badhurshah, Rameez; Samad, Abdus - In: Renewable Energy 74 (2015) C, pp. 749-760

principal power extracting component, the bidirectional turbine. In the present work, flow over a bidirectional impulse turbine …

Persistent link: https://www.econbiz.de/10011076854

A dimensional analysis for determining optimal discharge and penstock diameter in impulse and reaction water turbines

Leon, A.S.; Zhu, L. - In: Renewable Energy 71 (2014) C, pp. 609-615

This paper presents a dimensional analysis for determining optimal flow discharge and optimal penstock diameter when designing impulse and reaction turbines for hydropower systems. The aim of this analysis is to provide general insights for minimizing water consumption when producing hydropower....

Persistent link: https://www.econbiz.de/10010906504

A novel radial self-rectifying air turbine for use in wave energy converters

Falcão, A.F.O.; Gato, L.M.C.; Nunes, E.P.A.S. - In: Renewable Energy 50 (2013) C, pp. 289-298

The flow through the air turbine of an oscillating water column (OWC) wave energy converter is reciprocating and is random and highly variable. It is not surprising that the time-averaged efficiency of the air turbine is substantially lower than that of a conventional turbine working in nearly...

Persistent link: https://www.econbiz.de/10010806136

Multi-point aerodynamic optimization of the rotor blade sections of an axial-flow impulse air turbine for wave energy conversion

Gomes, R.P.F.; Henriques, J.C.C.; Gato, L.M.C.; … - In: Energy 45 (2012) 1, pp. 570-580

an axial-flow self-rectifying impulse turbine rotor is presented to show the capabilities of the proposed methodology …

Persistent link: https://www.econbiz.de/10010808977

A twin unidirectional impulse turbine topology for OWC based wave energy plants – Experimental validation and scaling

Mala, K.; Jayaraj, J.; Jayashankar, V.; Muruganandam, T.M. - In: Renewable Energy 36 (2011) 1, pp. 307-314

experimental validation of the twin unidirectional impulse turbine topology. A scale model of the concept was built and tested … turbines (viz, a twin Wells’ turbine, a linked guide vane impulse turbine and a fixed guide vane impulse turbine) is done …

Persistent link: https://www.econbiz.de/10011043929

An improved radial impulse turbine for OWC

Pereiras, Bruno; Castro, Francisco; Marjani, Abdelatif el; … - In: Renewable Energy 36 (2011) 5, pp. 1477-1484

years: a self-rectifying turbine known as an impulse turbine. We are interested in the radial version of the impulse turbine …

Persistent link: https://www.econbiz.de/10011044665

Performance of nano-hydraulic turbine utilizing waterfalls

Ikeda, Toshihiko; Iio, Shouichiro; Tatsuno, Kenji - In: Renewable Energy 35 (2010) 1, pp. 293-300

The aim of this investigation was to develop an environmentally friendly nano-hydraulic turbine utilizing waterfalls. A model of an impulse type hydraulic turbine constructed and tested with an indoor type waterfall to arrive at an optimum installation condition. Effects of an installation...

Persistent link: https://www.econbiz.de/10010804498

A twin unidirectional impulse turbine topology for OWC based wave energy plants

Jayashankar, V.; Anand, S.; Geetha, T.; Santhakumar, S.; … - In: Renewable Energy 34 (2009) 3, pp. 692-698

including those based on a fixed guide vane impulse turbine, linked guide vane impulse turbine or a Well's turbine. A wave to …

Persistent link: https://www.econbiz.de/10010807027

Performance analysis of an enhanced thermosyphon Rankine cycle using impulse turbine

Ziapour, B.M. - In: Energy 34 (2009) 10, pp. 1636-1641

low enthalpy heat sources. An enhanced design of the TRC system using impulse turbine was recommended, in this paper … happens for the reaction turbine model at the turbine infinite speed; and for the impulse turbine at the turbine limited speed …

Persistent link: https://www.econbiz.de/10010809328