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Incorporation of a hybrid cooling system in water cooled power stations to reduce water and energy consumptions
conference contribution
posted on 2010-01-01, 00:00 authored by Ferdi Yilmaz, M A Hessami, Abbas KouzaniAbbas Kouzani, Eric HuWater shortage is a major problem facing the power industry in many nations around the world. The largest consumer of water in most power plants is the wet cooling tower. To assist water and energy saving for thermal power stations using conventional evaporative wet cooling towers, a hybrid cooling system is proposed in this paper. The hybrid cooling system may consists of all or some of an air pre-cooler, heat pump, heat exchangers, and adsorption chillers together with the existing cooling tower. The hybrid cooling system described in the paper, consisting of a metal hydride heat pump operating in conjunction with the existing wet cooling tower, is capable of achieving water saving by reducing the temperature of warm water entering the cooling tower. Cooler inlet water temperatures effectively reduce the cooling load on existing towers. This will ultimately reduce the amount of water lost to the air by evaporation whilst still achieving the same cooling output. At the same time, the low grade waste energy upgraded by the metal hydride heat pump, in the process of cooling the water, can be used to replace the bleed of steam for the lower stage feed heaters which will increase overall cycle efficiency.
History
Event
International Ege Energy Symposium and Exhibition (5th : 2010 : Denizli, Turkey)Pagination
1 - 8Publisher
[Pamaukkale University]Location
Denizli, TurkeyPlace of publication
[Denizli, Turkey]Start date
2010-06-27End date
2010-06-30Language
engPublication classification
E1 Full written paper - refereedCopyright notice
2010, IEESETitle of proceedings
IEESE-5 2010 : Proceedings of the 5th International Ege Energy Symposium and ExhibitionUsage metrics
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