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Improving the efficiency of natural draft cooling towers
Smrekar, Jure (Avtor), Oman, Janez (Avtor), Širok, Brane (Avtor)

URLURL - Predstavitvena datoteka, za dostop obiščite http://dx.doi.org/10.1016/j.enconman.2005.07.012 Novo okno

Izvleček
This study shows how the efficiency of a natural draft cooling tower can be improved by optimising the heat transfer along the cooling tower (CT) packing using a suitable water distribution across the plane area of the cooling tower. On the basis of cooling air measurements, it is possible to distribute the water in such a way that it approaches the optimal local wateržair mass flow ratio and ensures the homogeneity of the heat transfer and a reduction ofentropy generation, thus minimising the amount of exergy lost. The velocity and temperature fields of the air flow were measured with the aid of a remote control mobile robot unit that was developed to enable measurements at an arbitrary point above the spray zone over the entire plane area of the coolingtower. The topological structures of the moist air velocity profiles and the temperature profiles above the spray zone were used as input data for calculation of the local entropy generation in the tower. On the basis of the measured boundary conditions, a numerical analysis of the influence of the water distribution across the cooling tower's plane area on entropy generation and exergy destruction in the cooling tower was conducted.

Jezik:Angleški jezik
Ključne besede:cooling tower, entropy generation, exergy destruction, cooling tower efficiency, heat transfer
Vrsta gradiva:Delo ni kategorizirano (r6)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Leto izida:2006
Št. strani:str. 1086-1100
Številčenje:Letn. 47, Št. 9/10
UDK:536.24:536.7:621.565
ISSN pri članku:0196-8904
COBISS.SI-ID:8911899 Povezava se odpre v novem oknu
Število ogledov:526
Število prenosov:126
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
 
Skupna ocena:(0 glasov)
Vaša ocena:Ocenjevanje je dovoljeno samo prijavljenim uporabnikom.
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Gradivo je del revije

Naslov:Energy conversion and management
Skrajšan naslov:Energy convers. manage.
Založnik:Pergamon
ISSN:0196-8904
COBISS.SI-ID:2618919 Novo okno

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