This paper deals with the variability of wettedness in hot environments and with the effect of its characteristics on the equi-skin temperature line. The experiments were carried out using young male subjects in a climate chamber. The tests were conducted on sitting-resting subjects dressed in athletic shorts. We conducted the studies in such environments that average skin temperature indicated in each environment be equal or close. The combinations of air temperature T_a and relative humidity RH were: (T_a≒33℃, RH≒80%), (T_a≒36℃, RH≒50%) and (T_a≒39℃, RH≒20%). From the basic measurements of both environmental parameters and human physiological responses, we obtained the following results. Under the conditions of constant activity level, of constant clothing worn, of constant air velocity and of constant average skin temperature, 1) the wettedness value in a high humidity environment is larger than that in a low humidity environment. 2) the evaporative heat loss from the skin surface is proportional to the wettedness. 3) the evaporative heat loss in a low humidity environment is larger than that in a high humidity environment. From the above-mentioned items, the locus of the equi-skin temperature is not a straight line but is plotted as a curve on the psychrometric chart.

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Olfactory adaptation is one of the most important characteristics on sense of smell. In this study, a model of olfactory adaptation is newly proposed. This model is based on some findings in early psycho-physical and physiological works, and is developed on the assumption that olfactory response is proportional to the rate of odorant-receptor combination. The time-course of olfactory response were simulated by using this adaptation model. In results, the time-courses estimated by the simulation, with changing the parameters of this model, could represent some actual experienced phenomena of adaptation and early experimental findings. And a method to control aromatic fragrance in consideration of adaptation, in design of comfortable space by using fragrance, was discussed. In results, it was expected that discontinuous fragrance flow with increasing concentration may be effective. It was made clear that the consideration of this adaptation model was useful to decision of the control method of fragrance.

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To design air-conditioning systems or to design building elements for rooms, in which humidity condition is important like a museum, it should not be avoided to estimate temperature and humidity of the rooms by taking into account simultaneous heat and moisture response of walls. In the present paper, a new computation method to find the hygrothermal triangle response of a multi-layer wall based on Discrete Fourier Transform is described. To find an accurate response, which is required to verify the proposed method, modification on the conventional method, where the response is represented by a series of residues, is needed. Comparing the results, it is found that computational errors by the proposed method are less than 3% and the computing time is about 1/90 of the conventional method.

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This paper describes result of statistical analysis of Energy Conservation Planning Report on office building in Tokyo, published in 1988 by Institute of Energy Conservation. Two hundred twenty buildings preparing perfect data about CEC and PAL were adopted as samples. Using these sample data, statistical analysis such as regression analysis, multivariance analysis and quantification theory type III was performed. PAL was not so suitable index to evaluate efficiency for energy conservation, because it was on the basis of EDD method. Buildings which had common PAL and never be occurred partial air conditioning load, showed significant correlations between CEC and energy consumption. Most buidings adopted more than two energy conservation systems. Good energy conservation effects in transportation energy were observed in buildings adopted several energy conservation systems other than unitary heat pump, total heat exchanger and operating system of number control of heat source. It seemed to influence on average values of CEC and energy consumption, whether unitary heat pump was adopted or not. In recent office buildings, more than 70% buildings have adopted unitary heat pump. Unitary heat pump system will be one of the most important issue in design of building service considering effective energy conservation.

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In the previous paper of this series, the analysis using descriptive statistics and the Weibull distribution on hospital facilities were shown. This report deals with quantitative tendencies of maintenace and major maintenance results. Firstly by using the logarithmic normal distribution for quantitative analysis of maintenance, we assume and estimate the time to repair based on these results and qualitative analysis results. This is very useful in carrying out scheduled maintenance plan. Secondly we discuss on the major maintenance which is being defined, as that requiring more than 360.0man・min to repair a machinery/system. According to this proposal and actual verification, we are contributing in suggesting to treat upon the major maintenance.

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Recently, the flow visualization have been used for the quantitative observation of flow fields using image processing techniques. The velocity vectors were started to determine using path-lines obtained in the flow visualization. In such works, the judgement of senses of velocity vectors is in itself a problem. As the means of solving, several methods in which a pair of cameras were used synchronously have been proposed before. With respect to an analysis for determinig senses of the vectors, a simple method in which an only camera was used and the experimental procedure was simplified was then discussed in this study. It is an automatic analysis method for determining senses of the vectors using a one-digitalized path-line picture. And, the senses of each path-lines were determined one after another using angles of inclination between pathlines. This simple method developed in this study was applied to determine senses of velocity vectors in two kinds of the separated flows around both a plate and a circular cylinder. From the examination, this method was found to be applicable to actual problem of flow fields.

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Thermal characteristics of the ice storage tank of ice-on-coil type have been studied with model tank experiments. Using a simple mathematical model for ice melting process, a set of dimensionless numbers was introduced. Comparing with the experimental results another larger-scaled model, the similarity theory was examined. The effects of the Archimedes numbers, input heat flux, and ice packing factor (IPF) on the thermal response at the outlet and inside the tank was examined for the step input of temperature. It was disclosed that some kind of patterns in thermal response at the outlet existed for combinations of the Archimedes number and input heat flux. The effects of the agitation which is often applied during ice making and/or melting was investigated by the analysis of variance (ANOVA). Examined factors were the rate of agitation, brine flow rate and brine temperature deference, and with three levels. In ice-making, each of these factors and an interaction between the flow rate and brine temperature are statically significant. Ice storage tank performance which is generally called storage efficiency was analyzed using the same indices as the water thermal storage tank based on the indicial response of the tank. Regressive equations based on the experimental results have been proposed to predict ice storage performances.

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