COMPUTATIONAL FLUID DYNAMICS CHARACTERIZATION OF A HYBRID COOLING SYSTEM COMPOSED OF A DISPLACEMENT VENTILATION UNIT AND A RADIANT COOLING FLOOR

2013 ◽  
Vol 5 (2) ◽  
pp. 127-141 ◽  
Author(s):  
J. M. Pena-Suarez ◽  
Joaquin Ortega-Casanova
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Cooling System ◽  
Displacement Ventilation ◽  
Hybrid Cooling ◽  
Radiant Cooling

scholarly journals Thermal Comfort and Energy Analysis of a Hybrid Cooling System by Coupling Natural Ventilation with Radiant and Indirect Evaporative Cooling

Energies ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7825
Author(s):  
Pradeep Shakya ◽  
Gimson Ng ◽  
Xiaoli Zhou ◽  
Yew Wah Wong ◽  
Swapnil Dubey ◽  
...  
Keyword(s):  
Thermal Comfort ◽  
Hybrid System ◽  
Natural Ventilation ◽  
Cooling System ◽  
Evaporative Cooling ◽  
Supply System ◽  
Hybrid Cooling ◽  
Air Supply ◽  
Radiant Cooling ◽  
Indirect Evaporative Cooling

A hybrid cooling system which combines natural ventilation with a radiant cooling system for a hot and humid climate was studied. Indirect evaporative cooling was used to produce chilled water at temperatures slightly higher than the dew point. With this hybrid system, the condensation issue on the panel surface of a chilled ceiling was overcome. A computational fluid dynamics (CFD) model was employed to determine the cooling load and the parameters required for thermal comfort analysis for this hybrid system in an office-sized, well-insulated test room. Upon closer investigation, it was found that the thermal comfort by the hybrid system was acceptable only in limited outdoor conditions. Therefore, the hybrid system with a secondary fresh air supply system was suggested. Furthermore, the energy consumptions of conventional all-air, radiant cooling, and hybrid systems including the secondary air supply system were compared under similar thermal comfort conditions. The predicted results indicated that the hybrid system saves up to 77% and 61% of primary energy when compared with all-air and radiant cooling systems, respectively, while maintaining similar thermal comfort.

Characterization of the Hydrodynamics in the USP Basket Apparatus Using Computational Fluid Dynamics

2020 ◽  
Vol 109 (3) ◽  
pp. 1231-1241
Author(s):  
Andres F. Martinez ◽  
Kushal Sinha ◽  
Nandkishor Nere ◽  
Russell Slade ◽  
Steven Castleberry
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics

scholarly journals Patient-Specific Characterization of Breast Cancer Hemodynamics Using Image-Guided Computational Fluid Dynamics

2020 ◽  
Vol 39 (9) ◽  
pp. 2760-2771 ◽  
Author(s):  
Chengyue Wu ◽  
David A. Hormuth ◽  
Todd A. Oliver ◽  
Federico Pineda ◽  
Guillermo Lorenzo ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Patient Specific ◽  
Image Guided

Characterization of a New Structured Packing by Computational Fluid Dynamics

2020 ◽  
Vol 44 (1) ◽  
pp. 156-163
Author(s):  
Amin Hassanvand ◽  
Seyyed Hamid Esmaeili-Faraj ◽  
Mojtaba Saei Moghaddam ◽  
Rasoul Moradi
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Structured Packing

scholarly journals Computational Fluid Dynamics Analysis of an Evaporative Cooling System

2016 ◽  
Vol 66 (2) ◽  
pp. 117-124
Author(s):  
N. Kapilan ◽  
M. Manjunath Gowda ◽  
H. N. Manjunath
Keyword(s):  
Climate Change ◽  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Urban Areas ◽  
Cooling System ◽  
Evaporative Cooling ◽  
Rural And Urban Areas ◽  
Rural And Urban ◽  
Computational Fluid Dynamics Analysis ◽  
Evaporative Cooling System

Abstract The use of chlorofluorocarbon based refrigerants in the air-conditioning system increases the global warming and causes the climate change. The climate change is expected to present a number of challenges for the built environment and an evaporative cooling system is one of the simplest and environmentally friendly cooling system. The evaporative cooling system is most widely used in summer and in rural and urban areas of India for human comfort. In evaporative cooling system, the addition of water into air reduces the temperature of the air as the energy needed to evaporate the water is taken from the air. Computational fluid dynamics is a numerical analysis and was used to analyse the evaporative cooling system. The CFD results are matches with the experimental results.

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