Comparison of the Thermal Performance of Radiative and Convective Terminals: A conceptual approach

Jerome Le Dreau, Per Heiselberg

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

Resumé

During the last decades, the use of radiant terminals for heating or cooling buildings has rapidly increased and the activation of different construction elements has been tested: floor, ceiling or walls. Radiant systems are usually used instead of air conditioning systems: it is therefore of interest to compare the energy efficiency of the two types of terminals for heating and cooling buildings. Convective terminals (i.e. air conditioning systems) have been widely used in buildings, but the level of comfort is not always acceptable due to high air velocity. On the other hand radiant terminals can provide a better indoor climate, and be more energy efficient because they can make use of low-grade sources. The output of this conceptual approach is a better understanding of the advantages and drawbacks of the two technologies under different conditions. The analysis has been performed by simulating the energy consumption of an office room, located in Denmark. Different outdoor conditions have been tested, in order to compare their performance during the winter season and the summer season. Different types of activated surface have also been simulated. The results of this analysis show that the efficiency of convective terminals is highly dependent on the ventilation losses of the building. Radiant terminals are less sensitive to this parameter.
OriginalsprogEngelsk
TitelPLEA 2012 Lima Peru - Opportunities, Limits & Needs : Towards an environmentally responsible architecture
Antal sider7
Udgivelses stedLima, Peru
ForlagThe International Conference on Sustainable Architecture + Urban Design
Publikationsdato2012
StatusUdgivet - 2012
BegivenhedPLEA 2012 Lima Peru - Opportunities, Limits & Needs: Towards an environmentally responsible architecture - Lima, Peru
Varighed: 7 nov. 20129 nov. 2012
Konferencens nummer: 28

Konference

KonferencePLEA 2012 Lima Peru - Opportunities, Limits & Needs
Nummer28
LandPeru
ByLima
Periode07/11/201209/11/2012

Fingerprint

air conditioning
heating
cooling
energy efficiency
ventilation
winter
air
climate
summer
energy
comparison
analysis
loss
office
energy consumption
parameter

Bibliografisk note

Published on a usb

Emneord

  • Radiant Terminal
  • Air Conditioning
  • Energy Efficiency
  • Heating
  • Cooling
  • Steady State
  • Solar Absorption

Citer dette

Le Dreau, J., & Heiselberg, P. (2012). Comparison of the Thermal Performance of Radiative and Convective Terminals: A conceptual approach. I PLEA 2012 Lima Peru - Opportunities, Limits & Needs: Towards an environmentally responsible architecture Lima, Peru: The International Conference on Sustainable Architecture + Urban Design.
Le Dreau, Jerome ; Heiselberg, Per. / Comparison of the Thermal Performance of Radiative and Convective Terminals : A conceptual approach. PLEA 2012 Lima Peru - Opportunities, Limits & Needs: Towards an environmentally responsible architecture. Lima, Peru : The International Conference on Sustainable Architecture + Urban Design, 2012.
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abstract = "During the last decades, the use of radiant terminals for heating or cooling buildings has rapidly increased and the activation of different construction elements has been tested: floor, ceiling or walls. Radiant systems are usually used instead of air conditioning systems: it is therefore of interest to compare the energy efficiency of the two types of terminals for heating and cooling buildings. Convective terminals (i.e. air conditioning systems) have been widely used in buildings, but the level of comfort is not always acceptable due to high air velocity. On the other hand radiant terminals can provide a better indoor climate, and be more energy efficient because they can make use of low-grade sources. The output of this conceptual approach is a better understanding of the advantages and drawbacks of the two technologies under different conditions. The analysis has been performed by simulating the energy consumption of an office room, located in Denmark. Different outdoor conditions have been tested, in order to compare their performance during the winter season and the summer season. Different types of activated surface have also been simulated. The results of this analysis show that the efficiency of convective terminals is highly dependent on the ventilation losses of the building. Radiant terminals are less sensitive to this parameter.",
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Le Dreau, J & Heiselberg, P 2012, Comparison of the Thermal Performance of Radiative and Convective Terminals: A conceptual approach. i PLEA 2012 Lima Peru - Opportunities, Limits & Needs: Towards an environmentally responsible architecture. The International Conference on Sustainable Architecture + Urban Design, Lima, Peru, PLEA 2012 Lima Peru - Opportunities, Limits & Needs, Lima, Peru, 07/11/2012.

Comparison of the Thermal Performance of Radiative and Convective Terminals : A conceptual approach. / Le Dreau, Jerome; Heiselberg, Per.

PLEA 2012 Lima Peru - Opportunities, Limits & Needs: Towards an environmentally responsible architecture. Lima, Peru : The International Conference on Sustainable Architecture + Urban Design, 2012.

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

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Le Dreau J, Heiselberg P. Comparison of the Thermal Performance of Radiative and Convective Terminals: A conceptual approach. I PLEA 2012 Lima Peru - Opportunities, Limits & Needs: Towards an environmentally responsible architecture. Lima, Peru: The International Conference on Sustainable Architecture + Urban Design. 2012