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TERSİNMEZ OTTO ÇEVRİMİNİN EKOLOJİK PERFORMANS ANALİZİ

ECOLOGICAL PERFORMANCE ANALYSIS OF IRREVERSIBLE OTTO CYCLE

Journal Name:

  • Sigma Mühendislik ve Fen Bilimleri Dergisi

Publication Year:

  • 2005

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
In this paper, a comparative performance analysis and optimization based on the power output, ecological objective function and ecological coefficient of performance (ECOP) criteria have been performed for an airstandard irreversible internal combustion engine Otto cycle coupled to constant temperature heat reservoirs. A detailed numerical study has been done by considering the finite-rate heat transfer irreversibilities, heat leakage and internal irreversibilities. The obtained results are compared with those of the maximum ecology and maximum power criterion. The results showed that the Otto cycle operating under maximum ECOP conditions has important advantageous in terms of entropy generation rate and thermal efficiency.
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Abstract (Original Language): 
Bu çalışmada tersinmez Otto çevrimi için güç çıktısı, ekolojik amaç fonksiyonu ve yeni tanımlanan ECOP kriterine dayalı olarak karşılaştırmalı bir performans analizi yapılmıştır. Tersinmez Otto çevrimin genel ve optimal performansını incelemek için, sonlu sıcaklık farkında olan ısı transferi tersinmezlikleri, ısı kaçağı ve iç tersinmezlikler dikkate alınarak ayrıntılı bir nümerik çalışma gerçekleştirilmiştir. Elde edilen sonuçlar literatürde bulunan ekolojik performans kriteri ve maksimum güç çıktısı sonuçlarıyla karşılaştırılarak yeni tanımlanmış olan ekolojik performans katsayısının kullanılabilirliği incelenmiştir. Sonuçlar maksimum ECOP şartlarında çalışan Otto çevriminin entropi üretimi ve ısıl verim yönünden önemli avantajlar sağladığını göstermiştir.
FULL TEXT (PDF): 
PDF icon arastrmx_845_23_pp_106-117.pdf
  • 3
106-117
  • Turkish

REFERENCES

References: 

[1] Angulo-Brown F., “An ecological optimization criterion for finite-time heat engines”,
J.Appl.Phys., Vol 69, 7465-7469, 1991.
[2] Cheng C.Y. and Chen C.K., “The ecological optimization of an irreversible Carnot heat
engine”, J. Phys. D: Appl. Phys., Vol 30, 1602-1609, 1997.
[3] Cheng C.Y. and Chen C.K., “Ecological optimization of an endoreversible Brayton
cycle”, Energy Covers. Mgmt., Vol 39, 3-44, 1998.
[4] Cheng C.Y. and Chen C.K., “Ecological optimization of an irreversible Brayton heat
engine”, J. Phys. D: Appl. Phys., Vol 32, 350-357, 1999.
[5] Chen L., Zhou J., Sun F. and Wu C., “Ecological optimization for generalized irreversible
Carnot engines”, Applied Energy, Vol 77, No 3, 327-338, 2004.
[6] Mozurkewich M. and Berry R.S., “Optimal paths for thermodynamic systems: the ideal
Otto cycle”, J. Appl. Phys., Vol 53, No 1, 34-42, 1982.
[7] Aizenbud B.M., Band Y.B. and Kafri O., “Optimization of a model internal combustion
engine”, J. Appl. Phys., Vol 53, No 3, 1277-1282, 1982.
[8] Hoffman K.H., Watowich S.J. and Berry R.S., “Optimal paths for thermodynamic
systems: the ideal Diesel cycle”, J. Appl. Phys., Vol 58, No 6, 2125-2134, 1985.
[9] Klein S.A., “An explanation for observed compression ratios in internal combustion
engines”, Trans. ASME J Engng Gas Turbine Pow., Vol 113, No 4, 511-513, 1991.
[10] Angulo-Brown F., Rocha-Martinez J.A. and Navarrete-Gonzalez T.D., “A nonendoreversible Otto cycle model: improving power output and efficiency”, J.Phys.: D
Appl. Phys., Vol 29, 80-83, 1996.
[11] Lin J., Chen L., Wu C. and Sun F., “Finite-time thermodynamic performance of a dual
cycle”, Int. J Energy Res., Vol 23, No 9, 765-772, 1999.
[12] Chen L., Sun F. and Wu C., “Optimal performance of an irreversible Dual-cycle”,
Applied Energy, Vol 79, No 1, 3-14, 2004.
[13] Sahin B., Kesgin U., Kodal A. and Vardar N., “Performance optimization of a new
combined power cycle based on power density analysis of the dual cycle”, Energy
Convers. Mgmt., Vol 43, No 15, 2019-2031, 2002.
[14] Sahin B., Ozsoysal O.A. and Sogut O.S., “A comparative performance analysis of
endoreversible dual cycle under maximum ecological function and maximum power
conditions”, Exergy-an International Journal, Vol 2, 173-185, 2002.
[15] Üst Y. Doktora Tezi İzleme Raporu, Yıldız Teknik Üniversitesi, İstanbul, 2005.
[16] Yan Z., “Comment on “An ecological optimization criterion for finite-time heat
engines””, J.Appl.Phys., Vol 73, 3583, 1993.

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