Numerical simulation of two Floor-Flat-Radiators in a room in order to evaluating their thermal performance

• Main Authors: Mohammad Mehdi Keshtkar, Saeed Zaidabadi Nejad
• Format: Article
• Language: fas
• Published: Iranian Society of Heating, Refrigeration and Air Conditioning Engineers (IRSHRAE) 2017-06-01
• Series: انرژی‌های تجدیدپذیر و نو
• Subjects: natural convection; room; finite volume method; local heating; rayleigh number
• Online Access: http://www.jrenew.ir/article_50865_d4a970df2a96b16bbf101e141b87faf2.pdf

The present work reports of the numerical simulation of natural convection in a square enclosure with local heating of bottom and cooling from side walls. This simulation has been done to evaluate the thermal analysis of two floor radiator in a squares room. Flow and temperature fields were obtained by numerical simulation of mass, momentum and energy equations in laminar, steady and two-dimensional flows.While the amount of heat energy into room is constant, effect of parameter dimensionless Rayleigh number and strength of the heat source as well as the location of they, evaluated on flow and temperature fields. In the end, it was found that by increasing the Rayleigh number, rotational flow within the room increases and convective heat transfer is dominant.