New printed circuit heat exchanger with S-shaped fins for hot water supplier

Development of Heat Exchanger with New Mechanism of Scraping Temperature Boundary Layer

“…[20][21][22][23] This study comes up with an idea to remove physically the temperature boundary layer. In other words, the boundary layer is scraped by solid blade and feed fresh fluids to the surface of the partition wall.…”

Heat Transfer and Pressure Drop Characteristics in Straight Microchannel of Printed Circuit Heat Exchangers

“…They also proposed empirical correlations for the local heat transfer coefficient and the pressure drop factor as functions of the Reynolds number. Ngo et al [12] have manufactured a new PCHE with an s-shaped pin by improving Nikitin et al's [5] straight channel PCHE and conducted experiments on this new PCHE. In addition, they evaluated the thermal hydraulic performance through a numerical analysis.…”

Study on local thermal–hydraulic performance and optimization of zigzag-type printed circuit heat exchanger at high temperature

“…Nikitin et al [15] investigated the thermal-hydraulic performance of supercritical CO 2 in the PCHE by experiment, in which the inlet temperature and pressure for the hot side were in the range of 280-300°C/ 2.2-3.2 MPa while 90-108°C/6.5-10.5 MPa for the cold side. Ngo et al [16] proposed a new S-shaped fin configuration for the PCHE. The numerical simulation showed that the new PCHE provided lower pressure drop by 37% on the CO 2 side and 10 times smaller on the H 2 O side than those of the existing hot water supplier.…”