numerical investigation of heat transfer and pressure drop in a plate heat exchanger with chevron plates

Authors

هادی پاکدامن

محمدرضا علیزاده

ولی کلانتر

abstract

in the present study, turbulent flow in channels of a plate heat exchanger with corrugated chevron plates has been simulated numerically using the commercial cfd package, fluent. unstructured mesh is used for discretizing the computational domain and simple algorithm is utilized to solve the pressure and velocity equations. there is a wide selection of different plate heat exchangers within the industry; therefore, 3d models of common corrugated chevron plates with chevron angles of 45-45 and 60-60 have been simulated to obtain and analyze temperature, pressure, and velocity fields of flow. the results show that geometrical parameters of the plates such as chevron angle have indisputable effects on flow pattern and heat transfer of the heat exchanger. finally, the effects of chevron angle and reynolds number (4000≤re≤20000) on friction factor and nusselt number of the flow were studied and compared with former experimental results. the numerical results show a good agreement with the experimental data. in addition, it was seen that increasing the chevron angles would lead to increasing the friction factor and nusselt number simultaneously.

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

A numerical investigation of γ-Al2O3-water nanofluids heat transfer and pressure drop in a shell and tube heat exchanger

The effect of γ-Al2O3 nanoparticles on heat transfer rate, baffle spacing and pressure drop in the shell side of small shell and tube heat exchangers was investigated numerically under turbulent regime. γ-Al2O3-water nanofluids and pure water were used in the shell side and the tube side of heat exchangers, respectively. Since the properties of γ-Al2O3-water nanofluids were variable, they were ...

full text

A numerical investigation of heat transfer and pressure drop in a novel cylindrical heat sink with helical minichannels

This study numerically investigated heat transfer and fluid flow characteristics in a novel cylindrical heat sink with helical minichannels for the laminar flow of fluid with temperature-dependent properties. A finite volume method was employed to obtain the solution of governing equations. The effects of helical angle, channel aspect ratio, and Reynolds number, which were regarded as main para...

full text

Numerical Investigation of Heat Transfer and Pressure Drop in a Corrugated Channel

The influence of variation in rib-height to channel-height ratio (e/H) on the heat transfer and pressure drop characteristics inside a channel with corrugated upper and lower plates was investigated numerically in the present study. The governing equations were solved by using finite volume approximations for a wide range of (0.06 < e/H < 0.26) and Reynolds numbers (5400 < Re < 23000), with a m...

full text

a numerical investigation of γ-al2o3-water nanofluids heat transfer and pressure drop in a shell and tube heat exchanger

the effect of γ-al2o3 nanoparticles on heat transfer rate, baffle spacing and pressure drop in the shell side of small shell and tube heat exchangers was investigated numerically under turbulent regime. γ-al2o3-water nanofluids and pure water were used in the shell side and the tube side of heat exchangers, respectively. since the properties of γ-al2o3-water nanofluids were variable, they were ...

full text

Heat Transfer and Pressure Drop During HC-600a (Isobutane) Condensation Inside a Brazed Plate Heat Exchanger

This paper presents the heat transfer coefficients and the pressure drop measured during HC-600a (Isobutane) condensation inside a brazed plate heat exchanger: the effects of saturation temperature, refrigerant mass flux and vapour super-heating are investigated. The heat transfer coefficients show weak sensitivity to saturation temperature and great sensitivity to refrigerant mass flux. At low...

full text

My Resources

Save resource for easier access later


Journal title:
علوم کاربردی و محاسباتی در مکانیک

جلد ۲۵، شماره ۱، صفحات ۱۴-۰

Keywords

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023