CFD Simulation of Temperature Distribution in a Room With Various Under Floor Heating System Models

Abstract

Limited resources of energy are the major challenges of the industrial and developing communities (countries), so engineers are increasingly encouraged for new ideas of producing energy from the today’s natural resources such as sun light and wind instead of fossil resources. In this study, flow of air in a 3D flow field surrounded by several walls and windows (a room) as laminar, and flow of water in a 3D flow filed (a pipe) placed on the bottom of the room as turbulent in an incompressible flow condition is modeled. The heat transfer through the pipe as the heat source placed under the floor in a sample room for several variables are studied numerically. The variables are two models of pipes arrangements, three types of pipes, and several pipe diameters. The wall conductivity and the air convection are considered constant for several outside room temperatures in this analysis. After analyzing all these parameters, the results obtained numerically are compared with each other and the best parameter values for the best room temperature as so called “comfort temperature” is selected. From the three variables considered here, it can be said that in an under floor heating system, the reciprocating model using the Pex-Al-Pex pipe type of 16mm pipe diameter are the best parameter values for a good and comfortable room temperatures for any outside temperature.

CFD Analysis of the Effect of Heat Distribution on Different Heating Pad Piping Arrangements for Flexitank Application

“…Most of the numerical methods applied for this study are nearly similar to that of several other studies [9][10][11][12][13]. However, the study of changes in the pressure inlet on the temperature distribution and comparing different piping arrangements are different from others.…”

“…However, there are still uncertainty or limitation reference regarding the heating pad for flexitank application. The most of previous research was conducted on floor heating pads, with applications similar to heating pads for flexitank [7][8][9][10][11][12][13]. One of the solutions to minimize the time taken to completely liquidize for discharging process is identify the finest arrangement of heating pad.…”

Numerical Simulation on the Temperature Distribution and Transferred Heat of Floor Heating

“…Along with a calculator programme to account temperature field, she found that floor heating system was propitious to intermittent regulate and control operation. Furthermore, Izadi MJ [11] carried out CFD simulations for different floor heating models. Literature [12] analysed the temperature distribution when the heating floor adopted dissimilar materials.…”

Numerical Modelling of Radiation-Convection Coupling of Greenhouse Using Underfloor Heating

“…The variables are two models of pipes arrangements, three types of pipes, and several pipe diameters. As a result, in an underfloor heating system, the reciprocating model using the PAP pipe type of 16 mm pipe diameter are the best parameter values for a good comfortable room temperatures [12]. Chen Jiao Liao (2011) proposed optimized design of hot air pipe in greenhouse based on CFD tech- tuned and used to control the internal temperature in the greenhouse.…”