Analysis of the hygrothermal environment in high-insulation houses using stand-type radiation panel system

Lee Myonghyang, Akihito Ozaki, Yosuke Chiba, Tadasu Ohishi

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

Abstract

In recent years, the demand for a highly efficient and comfortable hygrothermal environment has increased. Residential air conditioning using a system based on forced convection is prevalent in Japan. However, there are several problems associated with this type of system, such as unbalanced indoor temperature distribution, discomfort due to airflow, and diffusion of house dust. In addition, this system might also cause discomfort to the occupants, such as overcooling in the summer and excessive drying in the winter. An alternative is the radiation cooling/heating system, an air conditioning system that is already popular in Europe. This system is also being introduced into houses in Japan through mechanisms such as floor radiant heating. However, these systems tend not to be widely used due to unknown characteristics such as the delay in achieving the desired temperature, dehumidification due to condensation, and the radiant heat of the panel. In this study, we analyze indoor radiant heat and humidity characteristics using a stand-type radiation cooling/heating panel system installed in a highly insulated house. The characterization is performed using real-time measurements as well as numerical simulation. By using THERB for HAM (a residential building thermal environment simulation program for analyzing heat and moisture transfer), it is possible to predict the hygrothermal environment and the heat load of an entire building. We incorporate the algorithms for computing the parameters of the radiation panel system (heat convection, heat radiation, and two-dimensional heat conduction) in this simulation software.

Original languageEnglish
Title of host publication15th International Conference of the International Building Performance Simulation Association, Building Simulation 2017
EditorsCharles S. Barnaby, Michael Wetter
PublisherInternational Building Performance Simulation Association
Pages276-283
Number of pages8
ISBN (Electronic)9781510870673
DOIs
Publication statusPublished - 2017
Event15th International Conference of the International Building Performance Simulation Association, Building Simulation 2017 - San Francisco, United States
Duration: Aug 7 2017Aug 9 2017

Publication series

NameBuilding Simulation Conference Proceedings
Volume1
ISSN (Print)2522-2708

Conference

Conference15th International Conference of the International Building Performance Simulation Association, Building Simulation 2017
Country/TerritoryUnited States
CitySan Francisco
Period8/7/178/9/17

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Architecture
  • Modelling and Simulation
  • Computer Science Applications

Fingerprint

Dive into the research topics of 'Analysis of the hygrothermal environment in high-insulation houses using stand-type radiation panel system'. Together they form a unique fingerprint.

Cite this