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On the Reference State for Exergy when Ambient Temperature Fluctuates

Yıl 2009, Cilt: 12 Sayı: 3, 113 - 121, 01.09.2009

Michel Pons

Öz

Exergy (availability) is the amount of mechanical work that could be produced by reversible processes. This notion is revisited in the case when ambient temperature fluctuates. Simple examples are first considered, and then a theoretical approach is developed. It results that the most reliable way for combining entropy and total energy into an exergy function is a linear combination where entropy is multiplied by a constant temperature. It results that ambient air has non-zero exergy, but that exergy is surely conserved in ideal reversible processes. This approach is relevant for studying some recent problems in solar energy and building engineering.

Anahtar Kelimeler

solar energy building dead state thermodynamics second law heat storage

Yıl 2009, Cilt: 12 Sayı: 3, 113 - 121, 01.09.2009

Michel Pons

Öz

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Ayrıntılar

Birincil Dil İngilizce
Bölüm Regular Original Research Article
Yazarlar

Michel Pons

Yayımlanma Tarihi 1 Eylül 2009
Yayımlandığı Sayı Yıl 2009 Cilt: 12 Sayı: 3

Kaynak Göster

APA Pons, M. (2009). On the Reference State for Exergy when Ambient Temperature Fluctuates. International Journal of Thermodynamics, 12(3), 113-121.
AMA Pons M. On the Reference State for Exergy when Ambient Temperature Fluctuates. International Journal of Thermodynamics. Eylül 2009;12(3):113-121.
Chicago Pons, Michel. “On the Reference State for Exergy When Ambient Temperature Fluctuates”. International Journal of Thermodynamics 12, sy. 3 (Eylül 2009): 113-21.
EndNote Pons M (01 Eylül 2009) On the Reference State for Exergy when Ambient Temperature Fluctuates. International Journal of Thermodynamics 12 3 113–121.
IEEE M. Pons, “On the Reference State for Exergy when Ambient Temperature Fluctuates”, International Journal of Thermodynamics, c. 12, sy. 3, ss. 113–121, 2009.
ISNAD Pons, Michel. “On the Reference State for Exergy When Ambient Temperature Fluctuates”. International Journal of Thermodynamics 12/3 (Eylül 2009), 113-121.
JAMA Pons M. On the Reference State for Exergy when Ambient Temperature Fluctuates. International Journal of Thermodynamics. 2009;12:113–121.
MLA Pons, Michel. “On the Reference State for Exergy When Ambient Temperature Fluctuates”. International Journal of Thermodynamics, c. 12, sy. 3, 2009, ss. 113-21.
Vancouver Pons M. On the Reference State for Exergy when Ambient Temperature Fluctuates. International Journal of Thermodynamics. 2009;12(3):113-21.