Sergio Croquer
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View article: Benchmark of computational hydraulics models for open-channel flow with lateral cavities
Benchmark of computational hydraulics models for open-channel flow with lateral cavities Open
Computational models in hydro-environmental engineering are diverse in their background formulation and span from two-dimensional depth-averaged shallow water models, to complex fully three-dimensional turbulence models resolving large-edd…
View article: 1D modelling of the liquid-gas jet pump performance
1D modelling of the liquid-gas jet pump performance Open
The performance of a liquid-gas jet pump, which uses a high-velocity liquid flow to compress and entrain a gas flow, can be divided into two modes, on-design and off-design. The present paper investigates the mentioned modes of performance…
View article: Prediction of Performance and Geometrical Parameters of Single-Phase Ejectors Using Artificial Neural Networks
Prediction of Performance and Geometrical Parameters of Single-Phase Ejectors Using Artificial Neural Networks Open
Ejectors have gained renewed interest in the last decades, especially in heat-driven refrigeration systems, to reduce the load of the compressor. Their performance is usually influenced by many factors, including the working fluid, operati…
View article: Numerical modelling of heat and mass transfer in a refrigerated truck trailer.
Numerical modelling of heat and mass transfer in a refrigerated truck trailer. Open
The present work reports the numerical modeling of the heat and mass transfer inside a refrigerated truck trailer. The numerical model solves the conjugated heat and mass transfer inside the trailer under unsteady conditions. The conservat…
View article: Numerical benchmark for air vortex tube flows using a 2^(5-1) resolution V fractional factorial design.
Numerical benchmark for air vortex tube flows using a 2^(5-1) resolution V fractional factorial design. Open
Computational fluid dynamics models are commonly used to investigate the local fluid flow and heat transfer features inside vortex tubes. For design purpose, extensive calculations are required to optimize the vortex tube and a trade-off m…
View article: Gas supersonic ejector performance with droplet injection: a combined CFD and thermodynamic modelling approach.
Gas supersonic ejector performance with droplet injection: a combined CFD and thermodynamic modelling approach. Open
The variations in limiting pressure and efficiency of supersonic ejectors when droplets are injected in the vapour core before the diffuser were assessed numerically. Results of a CFD and a thermodynamic model were used for a combined glob…
View article: Modulation of a R245fa Supersonic Ejector By A Movable Needle: ANumerical Study
Modulation of a R245fa Supersonic Ejector By A Movable Needle: ANumerical Study Open
The current study explores the performance of a variable geometry ejector (VGE) working with R245fa.The ejector is equipped with a needle that controls the primary nozzle throat area (A t ).The nozzle head exit position (NXP) is also adjus…
View article: Advances in Numerical Reynolds-Averaged Navier–Stokes Modelling of Wave-Structure-Seabed Interactions and Scour
Advances in Numerical Reynolds-Averaged Navier–Stokes Modelling of Wave-Structure-Seabed Interactions and Scour Open
This review paper presents the recent advances in the numerical modelling of wave–structure–seabed interactions. The processes that are involved in wave–structure interactions, which leads to sediment transport and scour effects, are summa…
View article: Numerical Simulation of the Heat Transfer in a Refrigerated Trailer Equipped with Eutectic Plates for Frozen Food Delivery
Numerical Simulation of the Heat Transfer in a Refrigerated Trailer Equipped with Eutectic Plates for Frozen Food Delivery Open
The present work reports the Computational Fluid Dynamics simulation and analysis of the heat transfer inside a refrigerated truck trailer equipped with three eutectic plates and fans. The numerical model solves the conjugated heat transfe…
View article: Heat and mass transfer in a loaded truck trailer equipped with eutectic plates: a comparative numerical study.
Heat and mass transfer in a loaded truck trailer equipped with eutectic plates: a comparative numerical study. Open
The present work reports the numerical modeling of the air flow and heat transfer inside a refrigerated truck trailer equipped with three eutectic plates and fans. The objective is to optimize the configuration of the system. This well val…
View article: Prediction of Performance for an Ejector Refrigeration Cycle Workingwith R245fa Using Artificial Neural Network
Prediction of Performance for an Ejector Refrigeration Cycle Workingwith R245fa Using Artificial Neural Network Open
In this paper, an artificial neural network (ANN) model is used to predict the performance parameters of an ejector refrigeration cycle working with R245fa.Three approaches are used to achieve this objective: experimental analysis, thermod…
View article: Numerical Modeling of Train Aerodynamics in a Straight Tunnel
Numerical Modeling of Train Aerodynamics in a Straight Tunnel Open
A numerical investigation using k -ω SST RANS modeling has been carried out, to evaluate the aerodynamics of different metro train geometries through a straight tunnel.Drag performance has been compared with a typical blunt face train desi…
View article: Preface: Proceedings of the 1st Symposium on Energy Efficiency in Buildings and Industry
Preface: Proceedings of the 1st Symposium on Energy Efficiency in Buildings and Industry Open
Symposium on Energy Efficiency in Buildings and Industry. [...]
View article: Thermodynamic Modelling of Supersonic Gas Ejector with Droplets
Thermodynamic Modelling of Supersonic Gas Ejector with Droplets Open
This study presents a thermodynamic model for determining the entrainment ratio and double choke limiting pressure of supersonic ejectors within the context of heat driven refrigeration cycles, with and without droplet injection, at the co…
View article: Coupled Thermodynamic And CFD Approaches Applied To A Supersonic Air Ejector
Coupled Thermodynamic And CFD Approaches Applied To A Supersonic Air Ejector Open
This paper presents a systematic comparison of ejector performance predictions by a thermodynamic and a CFD model for different operating conditions. The thermodynamic model developed by Galanis and Sorin (2015) assumes the primary flow is…