[HTML][HTML] A detailed review on CO2 two-phase ejector flow modeling
Ejector-equipped vapor-compression systems for refrigeration and cooling, relying solely on
CO 2 (R744) as a natural working fluid, are perceived to be an eco-friendly and highly …
CO 2 (R744) as a natural working fluid, are perceived to be an eco-friendly and highly …
Computational modelling of flash boiling flows: A literature survey
Y Liao, D Lucas - International Journal of Heat and Mass Transfer, 2017 - Elsevier
A review of published work on the physics and modelling of flashing flows is presented. The
term “flashing” refers to a familiar phase change phenomenon initiated by pressure drop. It …
term “flashing” refers to a familiar phase change phenomenon initiated by pressure drop. It …
Ejectors on the cutting edge: The past, the present and the perspective
G Besagni - Energy, 2019 - Elsevier
The applications of ejectors are many and encompass the refrigeration, the power
generation and the chemical sectors. On one hand, ejector technology needs limited …
generation and the chemical sectors. On one hand, ejector technology needs limited …
Recent Advances in Transcritical CO2 (R744) Heat Pump System: A Review
RU Rony, H Yang, S Krishnan, J Song - Energies, 2019 - mdpi.com
Heat pump (HP) is one of the most energy efficient tools for address heating and possibly
cooling needs in buildings. Growing environmental concerns over conventional HP …
cooling needs in buildings. Growing environmental concerns over conventional HP …
Two-phase flow visualisation in the R744 vapour ejector for refrigeration systems
M Palacz, J Bodys, M Haida, J Smolka… - Applied Thermal …, 2022 - Elsevier
The dynamic development of R744 refrigeration cycles has been observed throughout
recent years. State-of-the-art R744 is equipped with ejectors or ejector modules to increase …
recent years. State-of-the-art R744 is equipped with ejectors or ejector modules to increase …
Application range of the HEM approach for CO2 expansion inside two-phase ejectors for supermarket refrigeration systems
In this study, the accuracy of the homogeneous equilibrium (HEM) applied to 3-D CFD-
based simulations of CO 2 expansion inside two-phase ejectors is presented. The HEM …
based simulations of CO 2 expansion inside two-phase ejectors is presented. The HEM …
HEM and HRM accuracy comparison for the simulation of CO2 expansion in two-phase ejectors for supermarket refrigeration systems
In this study, the accuracies of the homogeneous equilibrium (HEM) and homogeneous
relaxation models (HRM) were compared. Both models were implemented in the ejectorPL …
relaxation models (HRM) were compared. Both models were implemented in the ejectorPL …
Modified homogeneous relaxation model for the R744 trans-critical flow in a two-phase ejector
M Haida, J Smolka, A Hafner, M Palacz… - International Journal of …, 2018 - Elsevier
The proposed modified homogeneous relaxation model (HRM) applied to the numerical
model of a CO 2 two-phase ejector was numerically investigated and developed based on …
model of a CO 2 two-phase ejector was numerically investigated and developed based on …
1D Computational model of a two-phase R744 ejector for expansion work recovery
K Banasiak, A Hafner - International Journal of Thermal Sciences, 2011 - Elsevier
A one-dimensional mathematical model of the R744 two-phase ejector for expansion work
recovery is presented in this paper. Governing equations were formulated for all passages of …
recovery is presented in this paper. Governing equations were formulated for all passages of …
[HTML][HTML] Depressurization of CO2 in a pipe: Effect of initial state on non-equilibrium two-phase flow
It is key in several industrial applications to accurately describe rapid depressurization of
liquid and dense phase states. Examples include refrigeration systems, nuclear reactor …
liquid and dense phase states. Examples include refrigeration systems, nuclear reactor …