A comparative numerical study of shell and multi-tube heat exchanger performance with different baffles configurations

Marzouk, S.A.; Al-Sood, M.M. Abou; El-Fakharany, Magda K.; El‐Said, Emad M.S.

doi:10.1016/j.ijthermalsci.2022.107655

Cited by 36 publications

(5 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Release 18.2 (2017). The mathematical model is based on the Navier-Stokes equations (Khmelnik, 2010; V. Trokhaniak and V. Gorobets Marzouk et al 2022) and the convective energy transfer equation. The standard k-ε turbulence model was chosen (ANSYS..., 2017).…”

Section: Methodsmentioning

confidence: 99%

Untitled

2023

Tehnìka ta energetika

View full text Add to dashboard Cite

The research is devoted to the topical problem of the efficiency of turning wide-span bridge machines in the track farming system. The research aims to study the curvilinear movement along the soil traces of a constant technological track of an arbitrary multi-supported bridge machine, considering its design and method of turning, parameters, modes of movement and loading. Experimental studies were conducted, involving the use of a modern strain track and specially designed equipment for electrical measurements of non-electrical quantities. The processing of research data was carried out on a personal computer. A methodology for compiling private models of turning off the bridge vehicle moving along the soil trace of the constant technological track was developed. As a result of the joint solution problem of the bridge machine turning, it is possible to determine all output parameters of curvilinear motion: trajectory, tractive forces, turning radius, slipping, and actual speeds. The force interaction of the bridge machine's undercarriage with the soil trace of a constant track is presented based on flat sliding with a variable anisotropic friction coefficient of adhesion φ yd , depending on the properties of the track. As the radius of the wheel, the width of its tire and the air pressure in it, as well as the vertical load that acts on it, the coefficient of traction of the bridge machine φ yd increases, which may cause higher slippage. The adequacy of the model of stationary turning of the overhead machine is confirmed by experimental estimation of the

show abstract

Section: Methodsmentioning

confidence: 99%

Untitled

2023

Tehnìka ta energetika

View full text Add to dashboard Cite

show abstract

“…The CFD model was performed using the Navier-Stokes equations for convective flows [22][23][24]. The calculations use the Spalart-Allmaras turbulence model [25; 26] and the Discrete Ordinates radiation model [9; 27].…”

Section: Methodsmentioning

confidence: 99%

Investigation of the lateral ventilation system in a poultry house using CFD

Trokhaniak¹

2022

Tehnìka ta energetika

View full text Add to dashboard Cite

Maintaining a normalised microclimate in a poultry house is one of the main factors. It is the quality indicators of air parameters that ultimately determine the quality of product output. Keeping poultry requires considerable efforts and technological solutions. In this regard, the purpose of the study is to improve the microclimate system in the poultry house by installing ventilation equipment on the side wall. A powerful tool for predicting the air flow pattern in a poultry house is Computational Fluid Dynamics (CFD) modelling using ANSYS Fluent. This is an alternative to experimental research. CFD modelling results have shown that the valves operate most efficiently at 330 mm from the ceiling. The pressure drop of the supply valves is 45.85 Pa. The air velocity at the inlet of the supply valves is 9.17 m/s. The air velocity at a height of 0.7 m from the floor level varies within 0.57 m/s, the temperature – 9.91°C

show abstract

“…The CFD model has been run on the Navier-Stokes equations for convective flows [14][15][16]. The calculations use the discrete ordinates radiation model [9; 17] and the Spalart-Allmaras turbulence model [18; 19].…”

Section: Fig 2 Geometry Of a 3d Poultry House Indicating Boundary Con...mentioning

confidence: 99%

Research on gas dynamic flows in poultry house lateral ventilation system using cfd modelling

Bulgakov

Aboltins

Trokhaniak

et al. 2023

22nd International Scientific Conference Engineering for Rural Development Proceedings

View full text Add to dashboard Cite

Maintaining a good microclimate in the poultry house is one of the most important factors in poultry breeding. It is the quality of the air parameters that ultimately determines the quality of the yield. Poultry keeping requires a lot of effort and technological solutions. Therefore, the study is aimed to improve the microclimate system in the air environment of the poultry house by incorporating exhaust fans on the rear end wall in a non-traditional way. Computational Fluid Dynamics (CFD) with ANSYS Fluent is a powerful tool for predicting the climate system in the poultry house, as an alternative to experimental studies. CFD modelling of the gas-dynamics and heat-mass exchange processes has led to the conclusion that raising the valves to a height of 210 mm from the slab, and changing the spoiler cut-out by 73 °allows air to be conveyed to the centre of the poultry house. At the same time, the pressure drop of the supply valves is 47.18 Pa, which makes it possible to fully supply the exhaust fan. The air velocity at the inlet of the supply valves is 9.16 m·s-1. The average air speed at 0.7 m above the floor level is 0.71 m·s-1, and the temperature is 14.83 °С. Thus, the research presented can be used to develop new ventilation systems for poultry houses in the future.

show abstract

A comparative numerical study of shell and multi-tube heat exchanger performance with different baffles configurations

Cited by 36 publications

References 30 publications

Untitled

Untitled

Investigation of the lateral ventilation system in a poultry house using CFD

Research on gas dynamic flows in poultry house lateral ventilation system using cfd modelling

Contact Info

Product

Resources

About