... circulation (NC) system. Experiments conducted at pressures between 7.9 and 12.31 MPa for vertical heater horizontal cooler (VHHC) and vertical heater vertical cooler (VHVC) are reported. Effect of heat flux, operating pressure, and cooler orientation are discussed based on the experimental data generated...

... for SCFs under forced convection conditions, studies related to SCF under natural circulation (NC) mode are very limited. In the present study, extensive experiments have been performed with SC–CO 2 under NC conditions in tube geometry. The experimental data generated for vertical heated test section...

... proportion of NaCl cold pressing pressure permeability capillary suction capability experiments As a kind of high-efficiency phase change heat transfer unit, loop heat pipes (LHPs) have the advantages of antigravity operation, longer distance transmission, and higher heat transfer efficiency...

..., the model simulated and the experimentally obtained heat transfer coefficient are determined for those inlet velocities that were used in the experiments. The root mean square (RMS) error between these two heat transfer coefficients is obtained. This is repeated for two other assumed values of R c...

... of the S-CO 2 Brayton cycle: the complexity of heat exchanger design due to the vast change in thermophysical properties near a fluid’s critical point. Turbulent heat transfer experiments using carbon dioxide, with Reynolds numbers up to 100 K, were performed at pressures of 7.5–10.1 MPa, at temperatures...

... as phase change material n-eicosane, which has a theoretical melting temperature of 36.4 °C. Water and suspensions with particle mass fractions of 10% and 20% were considered. While the experiments result in rather global values such as wall temperatures at certain points, suspension in- and outlet...

... predicting models. A relatively intensified effort has been made on determining thermal conductivity of nanofluids from experiments. While the detailed microstructure-conductivity relationship is still unknown, the data from these experiments have enabled some trends to be identified. Suggested microscopic...

... nanofluids heat transfer buoyancy experiments volume fraction Nusselt number Rayleigh number empirical correlation Buoyancy-driven nanofluids are self-propelled nanofluid systems whose motion results from density difference. It has potential applications in the microelectromechanical systems...