Comparisons of the heat transfer and pressure drop of the microchannel and minichannel heat exchangers

An Investigation of the Pass Number on Heat Transfer and Pressure drop of the Minichannel Heat Exchangers

“…Mathematical model The governing equations in this system consist of the incompressible Navier-Stokes equations for the motion of fluid and the energy equation for transfer of heat [4,11,12]. The incompressible Navier-Stokes equations can be expressed by…”

“…The hot fluid effectiveness decreased as increasing the cold fluid effectiveness with the increasing heat in-leak. Dang and Teng [4] compared the heat transfer and pressure drop of the microchannel and minichannel heat exchangers, both numerically and experimentally. The results showed that the microchannel heat exchanger should be selected for the systems where high heat transfer rates are needed.…”

A Numerical Simulation on Phase Change of Steam in a Microchannel Condenser

“…The results showed that as the inlet area decreases, the heat transfer rate increases and the pressure loss decreases. Dang et al [3][4][5] investigated the comparisons of the heat transfer and pressure drop of the microchannel and minichannel heat exchangers, both numerically and experimentally. The heat transfer rate obtained from microchannel heat exchanger is higher than that obtained from the minichannel heat exchanger; however, the pressure drop obtained from microchannel heat exchanger is also higher than that obtained from the minichannel heat exchanger.…”

Single-Phase Heat Transfer and Fluid Flow Phenomena of Microchannel Heat Exchangers

“…It was found that the actual heat transfer rate was observed to vary insignificantly with the substrate thickness in the range from 1.2 to 2 mm. Moreover, a comparison of the pressure drop and heat transfer behaviors between the microchannel and minichannel heat exchangers was done by Dang et al [30]. Furthermore, numerical simulations of the microchannel heat exchangers using solver with the capability of dealing with steady-state and time-dependent conditions were carried out [31].…”

“…Furthermore, numerical simulations of the microchannel heat exchangers using solver with the capability of dealing with steady-state and time-dependent conditions were carried out [31]. Numerical studies of the behaviors of the microchannel heat exchangers with 3D singlephase fluid flow and heat transfer in [22][23][24][25][26][28][29][30][31] were done by using the COMSOL Multiphysics software, version 3.5. The algorithm of this software was based on the finite element method.…”