研究発表

This paper (Part18) reports the effects of indoor environmental quality on productivity for student. In this paper, indoor environmental quality in the school building is evaluated with 'Comprehensive Assessment System for Building Environmental Efficiency', CASBEE and, the relationship between each evaluation of indoor environment component and learning performance is investigated. There is correlation between the score of the air quality and learning performance. (R=0.73, p<0.05)

Demands on workplace productivity and saving energy in office buildings are more and more increasing. This research aims to examine the influence upon thermal sensation and workplace productivity by fluctuation of indoor temperature and airflow Subjective experiments in a climate chamber were conducted. Thermal sensation and satisfaction relate the fluctuation of temperature, and that is different due to temperatures subjected during the resting state. There is response time lag of performance fluctuation. Fluctuation of motivation and performance by airflow were different by airflow styles.

The health damage caused by indoor air pollution has become serious nowadays, to solve this problem fundamentally, comprehensive and quantitative assessments, from generation of pollutants to start of symptoms, are needed. In this study, new assessment tools to assess health damage by indoor air pollution quantitatively have been developed before. However it is also important to consider health damage by indoor air pollution in workplace, especially construction site, because much indoor air pollutants are emitted and construction workforces stay for long time there. In this report, a new assessment tool for health damage by occupational indoor air pollutants exposure is calculated.

This paper reports the effects on productivity, psychology and physiology caused by daylighting in the morning. This study used north window lighting to avoid adverse effect, for example, glare of direct streamer and sunlight heat. In this paper, productivity, psychology and physiology are evaluated by using the quiz and the questionnaire as self-assessment form. As an investigation result, improvement of productivity was observed by the effect of sun light. For example Score of the mind map was improved by 50 word on average (p<0.006).

In recent years, the needs to improve the productivity, fit the individual preferences and reduce the stress for the illumination of the working environment arise. However, there are few studies show the influence on productivity which caused by illumination and color temperature. In this study, we try to find out the influence on the illuminance and color temperature for productivity and fatigue by the subjective experiment and different work content. In addition, we provide the evaluation of productivity on the illumination of the working environment.

The circulatory organs disease (apoplexy and cardiac infarction) and accident in bathroom are to increase in winter for coldness of house. Therefore, preventing is important problem. Recently, people regard insulation and airtight houses as effective prevention which changes not only thermal environment but also resident's life-style. But it's effect is not verified. So, this study developed Incidence forecasting model of circulatory organs disease and accident in bathroom.

In recent years, "Senior's heat stroke in houses" is increasingly gaining attentions. Indoor thermal environment is effected by performance of residential thermal insulation. Indoor thermal environment influence human physiology and a rapid rise in body temperature may cause heat stroke. Therefore, it is necessary to reduce the heat stroke by improving residential thermal insulation. In this study, authors have developed body temperature simulation model for senior people to take effective actions against indoor heat stroke. Furthermore, authors have predicted body temperature change and crisis rate of heat stroke in houses by using the body temperature simulation model for senior people.

During the last years, the number of fatalities from Heat Stroke during bathing is rapidly increasing. The body temperature during bath time changes depending on the water temperature and the bathing length. However, causal relationship between the way of taking a bath and fatality rate has not been evaluated quantitatively. In this study, authors have developed body temperature simulation model during bathing and have predicted the mortality and rate of hospital admission caused by Heat Stroke in order to prevent the bathing accident.

One of the consequences of urban heat island intensification is that the number of patients with sleeping disorder is increasing, and is becoming a major social issue. To cope with this problem, it is necessary to evaluate the sleeping environment appropriately. In this study, we analyzed sleeping environment by coupled simulations of the heat and airflow network model and Computational Fluid Dynamics incorporated with thermoregulation model. We measured sleeping environment and had a questionnaire about sleep. Results of numerical analysis, measurement and questionnaire confirm that using psychology and physiology is important to evaluate the sleeping environment.

Recently, there has been increasing concern about delay in taking measures against summer heat and winter cold in school classroom. In this paper, to promote improvement the poor environment, we reviewed applicable criteria for assessment of the thermal environment in classroom. By the results of field measurement and questionnaire survey in four schools, it turned out that indoor-outdoor temperature difference is correlative to pupils' thermal sensations in classroom more strongly than PMV. In addition, using logistic regression analysis of the survey results, we developed prediction formula of their thermal sensations.

Environmentally symbiotic housings have attracted great social concern since the outbreak of global environmental issues. When designing environmentally symbiotic housings, multi-objective problem should be considered, which includes thermal comfort, energy conservation and indoor air quality etc. In this paper, the authors study the multi-objective optimization design of indoor climate using numerical simulation technique and examine the correlation of various parameters.

In order to develop the energy-efficient house in hot and humid region of Asia, the architectural devices provided to vernacular dwellings are considered to be useful. In this paper, the effect of the architectural devices of Indonesian traditional houses on indoor thermal environments, such as high-set floor and ship-shaped roof, are examined. Furthermore, the effect of employing the architectural devices to contemporary houses on cooling load reduction is calculated. The result shows the effectiveness of the architectural devices of vernacular dwellings.

This study compares radiant cooling with air-conditioning in office environment. The objectives are to investigate on the differences on wellness, occupants behavior and productivity. Indoor parameters, subjective declaration, skin temperature, face behaviors and productivity were measured. A method of measurement of yawning and eyes openness was created and used.