The Research of the Exergy Transfer Characteristic in the Process of Steady Heat Conduction during Constant-Section Straight Ribs

Abstract:

The ribs have been used to raise the area of convection heat transfer and consume little material simultaneously. This article adopt the analyze method of exergy transfer, with the help of gained temperature distribution in the constant-section straight ribs, derived the equation of the exergy distribution and the coefficient of exergy transfer distribution, with pay more attention to the rules of the energy quality decaying during the process of heat transfer in ribs. The solving results have been acquired in the Aluminium ribs and steel ribs with the case of same geometric parameter and same temperature parameter. The results show that the temperature, exergy value and the coefficient of exergy transfer is descending along the length direction of ribs. The parameter of Aluminium ribs is greater than the steel ribs because of the different property.

• Periodical: Advanced Materials Research (Volumes 732-733)
• Pages: 176-181
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.732-733.176
• Online since: August 2013
• Authors: Bo Wei, Wei He, Xiao Chao Fan
• Keywords: Coefficient of Exergy Transfer, Constant-Section Straight Ribs, Exergy Transfer, Material Property

References

[1] Yibo Gao. The optimize reach the process of natural convection heat exchanger in straight ribs [D]. Huazhong University of Science and technology, 2008.

[2] Weidong Wu.Heat Transfer and Friction Characteristics for Cross-flow Over Staggered External Three-dimensional Finned Tube Banks[D].ChongqingUniversity,2002.

[3] Songping Wang. The reach of energy and exergy transfer or transform.[D]. South China University of Technology,1998.

[4] Xinyao Xiang.Elementary forms of engineering exergy transfer[J].JOURNAL OF THERMAL SCIENCE AND TECHNOLOGY,2005,4(1):91-94.

[5] Bo Wei, Shenhua Hu, Long Huang, etc. The Research of the Exergy Transfer Characteristic in the Vertical Surface Condensation[J].Turbine Technology,2012,54(1):14-16.

[6] Yuanhai Zhu, Baohui Wang, Xinyao Xiang. Basic Expression for Thermodynamic Exergy and Its Applications[J].JOURNAL OF ENGINEERING THERMOPHYSICS,2003,24(6):906-909.

[7] Xinyao Xiang. Engineering Exergy Transfer and Evaluating Criterions[J].JOURNAL OF ENGINEERING THERMOPHYSICS,2002,23(6):681-682.

[8] Shimin Yang, Wenquan Tao.Heat Transfer[M].Beijing: HigherEducationPress,2006:57-63