Articles producció científica> Enginyeria Mecànica

Thermal and Surface Radiosity Analysis of an Underfloor Heating System in a Bioclimatic Habitat

  • Identification data

    Identifier: imarina:9224765
    Authors:
    Laafer, AbdelkaderSemmar, DjaffarHamid, AbdelkaderBourouis, Mahmoud
    Abstract:
    This paper addresses the modeling of convective and radiative heat transfer to achieve an acceptable level of indoor temperature. The results presented were obtained in a pilot project in which an energy-efficient house was built on a site located west of Algiers. The main objective was to perform a numerical simulation to investigate how the temperature of the heat-transfer fluid circulating in the floor heating system affected the temperature of the indoor air and also how surface radiosity affected the temperature profile of the indoor air. The study employed the finite element method integrated into the Comsol Multiphysics software. The model was validated using experimental data reported in the literature for the pilothouse at the same meteorological conditions. An error of about 2.32% was apparent between the experimental and theoretical results. Results showed that the increase of the heating transfer fluid temperature from 30 to 50 degrees C produced the same temperature of about 15.1 degrees C taken at a 50 cm height inside the room. The air temperature remained stable, with an insignificant variation after 72 h of heating. Surface radiosity increased as a function of time and reached an almost constant value of 380 W center dot m(-2) after 72 h because of the stability of the air temperature by convection.
  • Others:

    Author, as appears in the article.: Laafer, Abdelkader; Semmar, Djaffar; Hamid, Abdelkader; Bourouis, Mahmoud;
    Department: Enginyeria Mecànica
    URV's Author/s: Bourouis Chebata, Mahmoud
    Keywords: Underfloor heating systems Underfloor heating Thermal comfort Terminals Temperature profiles Surface radiosity Solar-energy Solar energy Radiative heat transfer Radiant floor Performance evaluation Numerical-simulation Meteorological condition Indoor temperature Heating equipment Heating Fluid temperatures Floor heating systems Floor cooling system Energy efficiency Design Conduction Comsol multiphysics Composite slab Buildings Bioclimatic habitat Atmospheric temperature Air
    Abstract: This paper addresses the modeling of convective and radiative heat transfer to achieve an acceptable level of indoor temperature. The results presented were obtained in a pilot project in which an energy-efficient house was built on a site located west of Algiers. The main objective was to perform a numerical simulation to investigate how the temperature of the heat-transfer fluid circulating in the floor heating system affected the temperature of the indoor air and also how surface radiosity affected the temperature profile of the indoor air. The study employed the finite element method integrated into the Comsol Multiphysics software. The model was validated using experimental data reported in the literature for the pilothouse at the same meteorological conditions. An error of about 2.32% was apparent between the experimental and theoretical results. Results showed that the increase of the heating transfer fluid temperature from 30 to 50 degrees C produced the same temperature of about 15.1 degrees C taken at a 50 cm height inside the room. The air temperature remained stable, with an insignificant variation after 72 h of heating. Surface radiosity increased as a function of time and reached an almost constant value of 380 W center dot m(-2) after 72 h because of the stability of the air temperature by convection.
    Thematic Areas: Zootecnia / recursos pesqueiros Renewable energy, sustainability and the environment Renewable energy, sustainability and the environm Interdisciplinar General computer science Fuel technology Engineering (miscellaneous) Engenharias iv Engenharias iii Engenharias ii Energy engineering and power technology Energy (miscellaneous) Energy & fuels Electrical and electronic engineering Economia Control and optimization Ciências ambientais Ciências agrárias i Ciência da computação Building and construction Biotecnología Biodiversidade Astronomia / física
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: mahmoud.bourouis@urv.cat
    Author identifier: 0000-0003-2476-5967
    Record's date: 2024-07-27
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://www.mdpi.com/1996-1073/14/13/3880
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Energies. 14 (13):
    APA: Laafer, Abdelkader; Semmar, Djaffar; Hamid, Abdelkader; Bourouis, Mahmoud; (2021). Thermal and Surface Radiosity Analysis of an Underfloor Heating System in a Bioclimatic Habitat. Energies, 14(13), -. DOI: 10.3390/en14133880
    Article's DOI: 10.3390/en14133880
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2021
    Publication Type: Journal Publications
  • Keywords:

    Control and Optimization,Electrical and Electronic Engineering,Energy & Fuels,Energy (Miscellaneous),Energy Engineering and Power Technology,Engineering (Miscellaneous),Fuel Technology,Renewable Energy, Sustainability and the Environm,Renewable Energy, Sustainability and the Environment
    Underfloor heating systems
    Underfloor heating
    Thermal comfort
    Terminals
    Temperature profiles
    Surface radiosity
    Solar-energy
    Solar energy
    Radiative heat transfer
    Radiant floor
    Performance evaluation
    Numerical-simulation
    Meteorological condition
    Indoor temperature
    Heating equipment
    Heating
    Fluid temperatures
    Floor heating systems
    Floor cooling system
    Energy efficiency
    Design
    Conduction
    Comsol multiphysics
    Composite slab
    Buildings
    Bioclimatic habitat
    Atmospheric temperature
    Air
    Zootecnia / recursos pesqueiros
    Renewable energy, sustainability and the environment
    Renewable energy, sustainability and the environm
    Interdisciplinar
    General computer science
    Fuel technology
    Engineering (miscellaneous)
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Energy engineering and power technology
    Energy (miscellaneous)
    Energy & fuels
    Electrical and electronic engineering
    Economia
    Control and optimization
    Ciências ambientais
    Ciências agrárias i
    Ciência da computação
    Building and construction
    Biotecnología
    Biodiversidade
    Astronomia / física
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