Nominal cooling capacity of radiant ceiling panels in hot and humid regions

Jun Shinoda*, Jiannan Liu, Miki Iijima, Kazuki Furumoto, Riho Matsuzaki, Shin Ichi Tanabe, Hiroki Iwata

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Radiant cooling systems are commonly used in regions such as Europe, and many standards on their measurement and design have been developed. However, some standards do not apply to hot and humid regions such as Japan. The aim of this research is to investigate the effects of factors commonly found in such regions on the cooling capacity of radiant panels. Experiments were conducted in a test room made in accordance with the EN14240 Standard. Results showed that increase in air velocity increased both the cooling capacity and the downward heat flux. An increase in temperature within the ceiling chamber resulted in the decrease of the downward heat flux while the cooling capacity increased. It was concluded that proper control of the thermal environment within the ceiling chamber was vital when measuring the cooling capacity of radiant panels, and that the downward heat flux should be calculated when designing radiant systems.

Original languageEnglish
Title of host publicationHealthy Buildings Europe 2017
PublisherInternational Society of Indoor Air Quality and Climate
ISBN (Print)9788379472604
Publication statusPublished - 2017
EventHealthy Buildings Europe 2017, HB 2017 - Lublin, Poland
Duration: 2017 Jul 22017 Jul 5

Publication series

NameHealthy Buildings Europe 2017


OtherHealthy Buildings Europe 2017, HB 2017


  • Ceiling chamber temperature
  • Downward heat flux
  • Forced convection
  • Panel insulation

ASJC Scopus subject areas

  • Civil and Structural Engineering


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