TY - GEN
T1 - Experiment for moisture buffering and effect of ventilation rate and volume rate of hydrothermal materials in a single room under steady state exterior conditions
AU - Hasegawa, Kenichi
AU - Yoshino, Hiroshi
AU - Mitamura, Teruaki
PY - 2007/12/1
Y1 - 2007/12/1
N2 - In this paper, the experiment for moisture buffering and effect of ventilation rate and volume rate of the hygrothermal materials is described. The objective of the experiment is to make clear the relationships between the moisture buffering effect and, the ventilation and volume rates of the hygrothermal materials. In the experiment, a layer of gypsum board as hygrothermal materials is placed on the interior surface of the test chamber (4.60 m 3). This chamber is located in the climate room which can control constant temperature and humidity level (20°C and 50%rh). For ventilation, a mechanical fan was installed on the chamber with inlet and outlet. Two series of experiments had been carried out. First series was an experiment of ventilation rate and three conditions (i.e. no ventilation, 1.0 1/h and 5.0 1/h) were adopted. Second series was an experiment of volume late and locations of the gypsum boards. Various sizes and locations of gypsum boards were placed on the interior walls. As a result, the moisture buffering effect would be disappeared in the case of larger ventilation rate. As volume rate increase, the moisture buffering effect is getting smaller. Its effect could be not directly proportional to the volume rate. However, these results included the effect of ventilation rate, so the influence of volume rate and locations was not clear. The next stage of this study will investigate its influence.
AB - In this paper, the experiment for moisture buffering and effect of ventilation rate and volume rate of the hygrothermal materials is described. The objective of the experiment is to make clear the relationships between the moisture buffering effect and, the ventilation and volume rates of the hygrothermal materials. In the experiment, a layer of gypsum board as hygrothermal materials is placed on the interior surface of the test chamber (4.60 m 3). This chamber is located in the climate room which can control constant temperature and humidity level (20°C and 50%rh). For ventilation, a mechanical fan was installed on the chamber with inlet and outlet. Two series of experiments had been carried out. First series was an experiment of ventilation rate and three conditions (i.e. no ventilation, 1.0 1/h and 5.0 1/h) were adopted. Second series was an experiment of volume late and locations of the gypsum boards. Various sizes and locations of gypsum boards were placed on the interior walls. As a result, the moisture buffering effect would be disappeared in the case of larger ventilation rate. As volume rate increase, the moisture buffering effect is getting smaller. Its effect could be not directly proportional to the volume rate. However, these results included the effect of ventilation rate, so the influence of volume rate and locations was not clear. The next stage of this study will investigate its influence.
KW - Chamber test
KW - Climate chamber
KW - Gypsum board
KW - Moisture buffering
KW - Ventilation rate
UR - http://www.scopus.com/inward/record.url?scp=84857262251&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84857262251&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84857262251
SN - 9784861630705
T3 - IAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment
SP - 991
EP - 996
BT - IAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings
T2 - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment, IAQVEC 2007
Y2 - 28 October 2007 through 31 October 2007
ER -