Generalized thermodynamic analysis of steam power cycles with 'n' number of feedwater heaters
"n" adet besleme suyu ısıtıcısının bir buhar güç çevriminin performansına etkisini analiz etmek üzere bir genelleştirilmiş matematiksel formülasyon ile termodinamik analiz yapıldı. Performans hesapları tek ısıtıcı için ayrı olarak formüle edildi ve parametrik çalışmalar için "n" ısıtıcıya kadar genişletildi. En iyi ara buhar sıcaklığı oranı verilen çalışma şartlarında ve tek ısıtıcı ile 0,4 olarak bulundu. Benzer şekilde buhar arakızdıncısmdaki en iyi basıncın ısıtıcı sayışma bağlı olmaksızın kazan basıncının %20-25'i olduğu bulundu. Sonuçlara göre çevrimin verimindeki maksimum kazanç ilk ısıtıcı ile elde edilmekte, ısıtıcı ilave edildikçe bu artış azalmaktadır. Bu çalışmada kazan basıncı, türbin giriş sıcaklığı ve yanma sıcaklığı ile verimdeki iyileştirmeler araştırıldı.
"n" adet besleme suyu ısıtıcılı buhar güç çevriminin genelleştirilmiş termodinamik analizi
Thermodynamic analysis has been carried out to analyze the effect of 'n' feedwater heaters (fwhs) on performance of a steam power cycle with a generalized mathematical formulation. The performance calculations are formulated separately to single fwh and extended to 'n' fwhs for parametric study. The optimum bled steam temperature ratio is found at 0.4 with single fwh at given working conditions. Similarly the optimum pressure in a steam reheater is obtained at 20-25% of the boiler pressure irrespective of the number of heaters. The results show that the maximum gain in the efficiency of cycle is obtained with the first fwh and the increment diminishes with the addition of the number of heaters. This work examined the improvements in efficiency with increases in boiler pressure, turbine inlet temperature and furnace temperature.
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- ISSN: 1301-9724
- Yayın Aralığı: Yılda 4 Sayı
- Başlangıç: 1998
- Yayıncı: -
Sayıdaki Diğer Makaleler
Dorin STANCIU, Mircea MIRANESCU, Alexandru DOBREVICESCU
T. SRİNİVAS, A. GUPTA, B. REDDY
Nadia MARTAJ, Lavina GROSU, Pierre ROCHELLE
Generalized thermodynamic analysis of steam power cycles with 'n' number of feedwater heaters
A.V.S.S.K.S. GUPTA, B.V. REDDY, T. SRINIVAS
Generalized Thermodynamic Analysis of Steam Power Cycles with ‘n’ Number of Feedwater Heaters