The effect of hemispherical chevrons angle, depth, and pitch on the convective heat transfer coefficient and pressure drop in compact plate heat exchangers

Document Type: Research Paper


School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran


Plate heat exchangers are widely used in industries due to their special characteristics, such as high thermal efficiency, small size, light weight, easy installation, maintenance, and cleaning. The purpose of this study is to consider the effect of depth, angle, and pitch of hemispheric Chevrons on the convective heat transfer coefficient and pressure drop. In the simulation of the heat exchanger, water and stainless steel are chosen for fluid and plate materials, respectively. The process is considered to be steady state, single-phase, and turbulent. In brief results show that the convective heat transfer coefficient and pressure drop decrease where the Chevrons depth and pitch increase. Moreover, these parameters enhance increment of the Chevrons angle up to 90°, after which they decrease with the Chevron angle. lastly, results are compared with Kumar equation which has been presented for corrugated plates. Maximum relative difference in this comparison is approximately 30%. As a result, a new correlation is proposed for the convective heat transfer coefficient in terms of the Reynolds number and the plate geometry.


[1] Focke W.W., Zachariades J., Olivier I., The Effect of the Corrugation Inclination Angle on the Thermohydraulic Performance of Plate Heat Exchanger, International Journal of Heat and Mass Transfer (1985) 28: 1469-1479.

[2] Gaiser   G.,     Kottke    V.,    Effects     of Wavelength and Inclination Angle on the Homogeneity of Local Heat Transfer Coefficients in Plate Heat Exchanger, Proceedings of 11th International Heat Transfer Conference (1998).

[3] Muley A., Manglik R.M., Experimental Study of Turbulent Flow Heat Transfer and Pressure Drop in Plate Heat Exchanger with Chevron Plates, Journal of Heat Transfer (1999) 121: 110-117.

[4] Dovic D., Svaic S., Influence of Chevron Plates Geometry on Performance of Plate Heat Exchangers, Tehnicki Vjesnik, (2007) 14: 37-45.

[5] Durmus A., Benli H., Gul H., Investigation of Heat Transfer and Pressure Drop in Plate Heat Exchanger Having Different Surface Profiles, International Journal of Heat and Mass Transfer (2009) 52: 1451-1457.

[6] Andersson E., Quah J., Polley G.T., Experience in the Application of Compabloc in Refinery Pre-heat Trains and First Analysis of Data from an Operational Unit, Proceeding of International Conference on Heat Exchanger Fouling and Cleaning VIII (2009).

[7] Han X.H., Cui L.Q., Chen S.J., Chen G.M., Wang Q., A Numerical and Experimnetal Study of Chevron, Corrugated-plate Heat Exchangers, International Communications in Heat and Mass Transfer (2010) 37: 1008-1014.

[8] Muthuraman S., The Characteristics of Brazed Plate Heat Exchangers with Different Chevron Angle, Global Journal of Researches in Engineering (2011) 11: 11-25.

[9] Tamakloe E.K., Polley G.T., Nuez M.P., Design of Compabloc Exchanger to Mitigate Refinery Fouling, Applied Thermal Engineering (2012) 60: 441-448.

[10] Faizal M., Ahmed M.R., Experimental Studies on a Corrugated Plate Heat Exchanger for Small Temperature Difference Applications, Experimental Thermal and Fluid Science (2012) 36: 242-248.

[11] Fahmy A.A., Flat Plate Heat Exchanger Design for MTR Reactor Upgrading, International Journal of Scientific & Engineering Research (2013) 4: 1-8.

[12] Yakhot V., Orszag S.A., Thangam S., Gatski T.B., Speziale C.G., Development of Turbulence Models for Shear Flows by a Double Expansion Technique, Physics of Fluids A (1992) 4: 1510-1520.

[13] Launder B.E., Spalding D.B., The Numerical Computation of Turbulent Flows, Computer Methods in Applied Mechanics and Engineering (1974) 3: 269-289.

[14] Patankar S.V., Numerical Heat Transfer and Fluid Flow (1980), Taylor & Francis.

[15] Kakac S., Liu H., Pramuanjaroenkij A., Heat Exchangers: Selection, Rating, and Thermal Design (2002), CRC Press.