Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
New high profitable wind turbines
Autore:
Frankovic, B; Vrsalovic, I;
Indirizzi:
Univ Rijeka, Fac Engn, HR-51000 Rijeka, Croatia Univ Rijeka Rijeka Croatia HR-51000 , Fac Engn, HR-51000 Rijeka, Croatia Rijekaprojekt DOO, HR-51000 Rijeka, Croatia Rijekaprojekt DOO Rijeka Croatia HR-51000 DOO, HR-51000 Rijeka, Croatia
Titolo Testata:
RENEWABLE ENERGY
fascicolo: 3-4, volume: 24, anno: 2001,
pagine: 491 - 499
SICI:
0960-1481(200111/12)24:3-4<491:NHPWT>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Keywords:
electric energy from wind; wind turbine; nozzle shell; wind turbine efficiency; economic analysis;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
8
Recensione:
Indirizzi per estratti:
Indirizzo: Frankovic, B Univ Rijeka, Fac Engn, Vukovarska 58, HR-51000 Rijeka, Croatia Univ Rijeka Vukovarska 58 Rijeka Croatia HR-51000 a, Croatia
Citazione:
B. Frankovic e I. Vrsalovic, "New high profitable wind turbines", RENEW ENERG, 24(3-4), 2001, pp. 491-499

Abstract

To generate more quantities of electric energy from wind it is necessary to use a new type of wind turbine built in the regulable mantle's nozzle, This wind turbine type replaces the free air stream from wind by a programmed, i.e. regulated, and partially concentrated stream of air. The nozzle shell is designed as an aerodynamically shaped ring with wings with its lower pressure side pointed towards the centre so that the lift force on each partof the wing is directed radially towards the centre, This induces centrifugal reaction force in the airflow that causes the stream field to expand strongly downstream of the rotor and includes a greater number of streamlinesin the active stream in front of the rotor (upstream). Thus the nozzle forces a higher mass flow rate of air through the turbine. The higher mass flow and higher velocity reduction behind the rotor result in a higher energy output from the wind turbine in the nozzle. In this way the wind turbine efficiency is multiplied. New turbines induce more power from weaker and medium winds and their lasting time, because of the relation P=f(v(3)) (i,e, the power corresponds to wind velocity raised to third power). Wind turbine nozzle produces three times more energy than conventional wind turbine. Short economic analysis for conditions of the island of Lastovo indicates that profit gained by new turbines is up to five times higher than by conventional turbines. The new wind turbine nozzle should generate interest and demand on an international market, even for regions with weaker winds. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/01/20 alle ore 06:18:31