A concept for utilizing detailed human thermal model for evaluation of thermal comfort

This paper presents a concept for more realistic and reliable evaluation of thermal indoorenvironment. A detailed thermal model of a human body, interacting with building simulationmodel, makes it possible to predict transient tissue temperatures of a human body as well aslocal skin temperature levels in realistic working and living conditions. Using thesetemperature distributions of a human body as input data for a new thermal comfort predictionmodel (Hui 2003), both local and overall estimations of thermal comfort of a human body canbe obtained.

Modeling human thermal comfort

Thermal comfort standards determine indoor conditions in buildings as well as the energyconsumption for heating and cooling purposes. Existing thermal comfort standards are basedon steadystatethermal conditions, and according to recent research these standards can notdescribe thermal comfort accurately enough with transient boundary conditions.

The Substitution Of Comfort Pmv Values By A New Experimental Operative Temperature

Problems following the application of optimal operative temperatures estimated on the basisof PMV and the necessity to apply correct values into the new Czech Government DirectiveNo. 523/2002 Code led to experiments based on the physiological human body responseinstead of on solely mans feelings in a defined environment.

Derivation and analysis of the indoor Wet Bulb Globe Temperature index (WBGT) with a human thermal engineering approach ? Part 1. Properties of the WBGT formula for indoor conditions with no solar radiation.

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.

Thermal Comfort, Perceived Air Quality and Intensity of SBS Symptoms During Exposure to Moderate Operative Temperature Ramps

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).

A field study of the performance of the Dutch Adaptive Temperature Limits guideline

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.

Revised Swedish Guidelines for the Specification of Indoor Climate Requirements released by SWEDVAC

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.

A Study on Improvement of Indoor Air Setting by Korean Native Plants

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.

Experimental Study on the Effect of Foliage Plants on Removing Indoor Air Contaminants

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.

Accumulation Behavior of Intermediate Products on The Surface of TiO2/ACF Catalysts during The Photocatalytic Oxidation of Toluene: Study of The Influence of Environmental Relative Humidity

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.

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