A review on application and heat transfer enhancement of supercritical CO2 in low-grade heat conversion
S Zhang, X Xu, C Liu, C Dang - Applied Energy, 2020 - Elsevier
Trans-critical CO 2 Rankine system is a new technology for low-grade heat utilization which
has high energy conversion efficiency and exergo-economic efficiency. The gas heater is …
has high energy conversion efficiency and exergo-economic efficiency. The gas heater is …
Physics-informed machine learning based RANS turbulence modeling convection heat transfer of supercritical pressure fluid
Solving flow problems based on the Reynolds-averaged Navier-Stokes equations is a
dominant method in terms of efficiency and accuracy for design and analysis of engineering …
dominant method in terms of efficiency and accuracy for design and analysis of engineering …
A comparative study on abnormal heat transfer of supercritical CO2 heated in vertical tubes
Y Jiao, Y Zeng, X Liu, G Li, C He, L Liu, P Li… - … Communications in Heat …, 2024 - Elsevier
The heat transfer characteristics of supercritical CO 2 heated in vertical smooth tube are
experimentally and numerically investigated. The results show that the M-shaped velocity …
experimentally and numerically investigated. The results show that the M-shaped velocity …
Experimental and numerical comparison of the heat transfer behaviors and buoyancy effects of supercritical CO2 in various heating tubes
S Zhang, X Xu, C Liu, X Liu, Z Ru, C Dang - International Journal of Heat …, 2020 - Elsevier
For the different flow orientations and physical models, the influence of buoyancy effect on
flow characteristics exist essential difference, the heat transfer behaviors change …
flow characteristics exist essential difference, the heat transfer behaviors change …
Direct numerical simulation of convective heat transfer of supercritical pressure in a vertical tube with buoyancy and thermal acceleration effects
Supercritical pressure fluids are widely used in heat transfer and energy systems. The
benefit of high heat transfer performance and the successful avoidance of phase change …
benefit of high heat transfer performance and the successful avoidance of phase change …
Turbulence in a heated pipe at supercritical pressure
The purpose of this research is to provide a new understanding of the turbulence dynamics
in a heated flow of fluid at supercritical pressure. A unified explanation has been established …
in a heated flow of fluid at supercritical pressure. A unified explanation has been established …
Structure of the thermal boundary layer in turbulent channel flows at transcritical conditions
Enhanced fluctuations, steep gradients, and intensified heat transfer are characteristics of
wall-bounded turbulence at transcritical conditions. Although such conditions are prevalent …
wall-bounded turbulence at transcritical conditions. Although such conditions are prevalent …
Direct numerical simulations of cooling flow and heat transfer in supercritical CO2 Brayton cycle coupled with solar energy
Direct numerical simulation was used to study supercritical carbon dioxide's flow and heat
transfer mechanisms under cooling conditions in the supercritical CO 2 Brayton Cycle …
transfer mechanisms under cooling conditions in the supercritical CO 2 Brayton Cycle …
Experimental investigation and theoretical analysis on the heat transfer deterioration of supercritical CO2 in mixed and forced convection in vertical-straight tube with …
The heat transfer deterioration of supercritical fluids in vertical-upward flow has been
extensive studied since 1930s. However, few studies focused on the heat transfer …
extensive studied since 1930s. However, few studies focused on the heat transfer …
Buoyancy induced turbulence modulation in pipe flow at supercritical pressure under cooling conditions
A numerical investigation of cooling of a fluid at supercritical pressure has been performed
by means of direct numerical simulations. The simulations were conducted with a uniform …
by means of direct numerical simulations. The simulations were conducted with a uniform …