Heat transfer enhancement of water-cooled triply periodic minimal surface heat exchangers
نویسندگان
چکیده
Whether triply periodic minimal surface (TPMS) heat exchangers are applicable to cooling or cold storage systems as a cooler for supercritical carbon dioxide (SCO2) is undocumented. Here the conjugated transfer of SCO2 in TPMS Schoen-G exchanger and printed circuit (PCHE) was predicted based on three-dimensional steady turbulent Reynolds-averaged Navier-Stokes equations, energy equation shear stress transport model using computational fluid dynamics software ANSYS CFX when inlet temperature pressure vary 65–30 ? (8–9)MPa. two cooled under counter-flow conditions by stream water with given mass flow rate. It shown that mean coefficient larger than PCHE. As rises, friction factor increases Nusselt number decreases due decreased Reynolds Prandtl number, respectively. The ratio, ratio performance evaluation criterion range 0.38–0.50, 1.07–1.49, 1.45–2.04 PCHE serves reference exchanger. streamlines quite smooth even though areas higher velocity appear. exhibit spiral pattern result extra hydraulic loss. enhancement much better Schwarz-D at 16,000. attributed area more topological tortuosity without separation
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ژورنال
عنوان ژورنال: Applied Thermal Engineering
سال: 2022
ISSN: ['1873-5606', '1359-4311']
DOI: https://doi.org/10.1016/j.applthermaleng.2022.119198