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Sajadi, Behrang, Hanafizadeh, Pedram, Bahman, Samar, Hayati, Ghazale. (1395). The effect of hemispherical chevrons angle, depth, and pitch on the convective heat transfer coefficient and pressure drop in compact plate heat exchangers. , 4(1), 31-41. doi: 10.22059/ees.2016.57635
Behrang Sajadi; Pedram Hanafizadeh; Samar Bahman; Ghazale Hayati. "The effect of hemispherical chevrons angle, depth, and pitch on the convective heat transfer coefficient and pressure drop in compact plate heat exchangers". , 4, 1, 1395, 31-41. doi: 10.22059/ees.2016.57635
Sajadi, Behrang, Hanafizadeh, Pedram, Bahman, Samar, Hayati, Ghazale. (1395). 'The effect of hemispherical chevrons angle, depth, and pitch on the convective heat transfer coefficient and pressure drop in compact plate heat exchangers', , 4(1), pp. 31-41. doi: 10.22059/ees.2016.57635
Sajadi, Behrang, Hanafizadeh, Pedram, Bahman, Samar, Hayati, Ghazale. The effect of hemispherical chevrons angle, depth, and pitch on the convective heat transfer coefficient and pressure drop in compact plate heat exchangers. , 1395; 4(1): 31-41. doi: 10.22059/ees.2016.57635

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

Energy Equipment and Systems
مقاله 4، دوره 4، شماره 1، شهریور 2016، صفحه 31-41    اصل مقاله (1.31 M)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22059/ees.2016.57635
نویسندگان
Behrang Sajadi* ؛ Pedram Hanafizadeh؛ Samar Bahman؛ Ghazale Hayati
School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran
چکیده
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.
کلیدواژه‌ها
Chevron Angle؛ Chevron Depth؛ Chevron Pitch؛ Numerical analysis؛ Plate Heat Exchanger
مراجع
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