Based on a heat balance equation between humans and the environment, the authors developed a theoretical derivation of the indoor WBGT formula, which was originally established empirically by Yaglou and Minard. We demonstrated that the coefficients of wet bulb temperature Tw and globe temperature Tg (= air temperature Ta), in the indoor WBGT formula contain variables such as the metabolic activity, the clothing insulation and the wind velocity, and that these three coefficients do not remain strictly constant.

The objective of the presented research work was to study the effects of moderate operative temperature drifts on human thermal comfort, perceived air quality, and intensity of SBS symptoms. Experimental subjects (52, 50% female) were seated in a climatic chamber and exposed to operative temperature ramps with different slope, direction and duration during two related experiments (0.6 K/h, 1.2 K/h, +2.4 K/h, +4.8 K/h). The studied temperature ranges were 22-26.8C (light clothing - 0.5 clo) and 17.8-25C (heavier clothing - 0.7 clo).

Field measurements and recording of occupant thermal responses and behavioral actions in 4buildings clearly demonstrates adaptation: at higher outdoor temperatures, higher indooroperative temperatures are judged as comfortable by the occupants. The comfort voteshowever didnt relate well with the climate types Alpha and Beta as determined according tothe Dutch ATG guideline.

The Swedish indoor climate guidelines issued by Swedvac has been thoroughly revised. The new document is adapted to harmonize with related international, European and Swedish standards. The document comprises thermal climate, indoor air quality, sound and light.

This study conducted the experiment of concentration reduction effect if indoor air pollutants to Korean native plants, Fatsia japonica Decne. et Planch. and Ardisia pusilla DC. The two plants are advantageous in that they are highly available as they grow wild, and being easy to get. Fatsia japonica Decne. et Planch. is a plant of its wide and large leaf diverged 7 or 8 parts, which is thought to have a high effect of air purification. Ardisia pusilla DC. has a smaller leaf than Fatsia japonica Decne. et Planch., which is characterized by more leaves and beautiful.

The objective of this paper is to demonstrate an ability of foliage plants quantitatively toremove chemical contaminants by experiments using a small desiccator for the different kindsof plant under the different luminescence and light sources, fluorescent, incandescent andlight-emitting-diode (LED) lamps. The foliage plants, Benjamin, Spathiphyllum, Areca palmand Concinna, cultivated in hydroponics were used.

Photocatalytic oxidation (PCO) tests have been carried out for toluene adsorbed on theactivated carbon fibers (ACFs) supported TiO2 photocatalyst in an environmental conditioncontrolled chamber. Through exploring the remnant of toluene and the accumulation ofintermediates on the TiO2/ACF catalyst including species, amount and their change processesunder different relative humidity (RH), this study aimed to explore the influence of RH on thePCO of toluene and the role of water vapor in the PCO process: PCO reaction paths and theaccumulation of intermediates on the TiO2/ACF catalyst.

The aim of this study was the experimental determination of particle deposition for both different particle size fractions and different indoor surface materials. The selected surface materials were glass, gypsum plate, carpet, and curtain. These materials were tested vertically in a full-scale test chamber. Experiments took place in a 32 m3 chamber with walls and ceiling made of glass. Prior to each experiment the chamber was flushed with outdoor air to reach an initial particle concentration typical of indoor air in buildings with natural ventilation.

When room ventilation is based on the stratification or zoning strategy, the ventilation airflow rate is determined on the grounds of the convection flows of the heat sources. Thus, inthe design phase of office ventilation, the convection flows of common office devices shouldbe known. Especially, to correctly dimension the ventilation air flow, it is important to knowthe volume flow rates. However, even if the convective power of an office appliance isknown, the cooling fan makes the prediction of the characteristics of the convection flow verydifficult.

In this study, energy consumptions associated with the change in outdoor air flow rate areanalyzed based on numerical methods. By employing the concept of ventilation effectiveness,possible reductions in the outdoor air load through reductions in the amount of outdoor airflow rate has been estimated. In addition, the effects of optimizing the capacity of HVACequipment on annual energy consumption and annual CO2 emissions have been analyzed.