Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
권호 표지

Optimization of the Channel of a Plate Heat Exchanger wits Ribs

리브가 있는 판형 열교환기 관내부 최적화

  • Published : 2002.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, the optimum shape and arrangement of ribs in the channel of a plate heat exchanger are studied. The following dimensionless geometric parameters of ribs are selected as design variables: rib height ($H_R$), angle of attack ($\beta$), rib pitch ($P_R$), rib distance (L) and aspect ratio of rib (AR). The optimization is performed by minimizing the objective function consisting of the Nusselt number and the friction factor. The optimal values of design variables are as follows: $H_R$=0.263, $\beta$=0.290, $P_R$=3.142, L: 3.954, AR=0.342. The pressure drop and the heat transfer of the optimum model, compared to those of the reference model, are increased by 15.1% and 41.6%, respectively.

Keywords

References

  1. J. Thermophysics v.5 no.1 Calculation of fully developed flow and heat transfer in streamwise-periodic dimpled channels Choudhury, D.;Karki, K. C.
  2. Int. J. Heat Mass Transfer v.44 no.17 Optimal Shape and Arrangement of Staggered Pins in the Channel of a Plate Heat Exchanger Lee, K. S.;Kim, W. S.;Si, J. M.
  3. J. of Heat Transfer v.99 Fully developed flow and heat transfer in ducts having streamwise-periodic variations of cross-sectional area Patankar, S. V.;Liu, C. H.;Sparrow, E. M.
  4. ASME/JSME Thermal Engineering Proceedings v.4 Evaporative heat transfer and pressure drop in a rib-roughened flat channel (Effects of height and spacing of repeated transverse rib roughness) Ohara, T.;Yamamoto, T.;Fujita, H.
  5. Journal of Turbomachinery v.113 Turbulent heat transfer and friction in a square channel with discrete rib turbulators Lau, S. C.;McMillin, R. D.;Han, J. C.
  6. Int. J. Heat Mass Transfer v.39 no.8 Heat transfer enhancement in converging passage with discrete ribs Hu, Z. J.;Chen, J. R.
  7. Inter Society Conference of Thermal Phenomena Convection and radiation heat transfer analysis in three-dimensional arrays of electronic components Bravo, R. H.;Sanchez, A.;Chen, C. J.;Smith, T. F.
  8. Engineering Optimization(theory and practice)(3rd ed.) Rao, S. S.
  9. Numerical Optimization Techniques for Engineering Design (International Edition) Vanderplaats, G. N.
  10. Introduction to Heat Transfer(3rd ed.) Incropera, F. P.;DeWitt, D. P.