In this study, research using an SAP (Subjective Assessment of workplace Productivity) and a POE (pre- and post-occupancy evaluation) has been carried out before and after relocation to the completed building. The research after relocation was conducted for two years. The purpose of this study was twofold. The first is to gather knowledge by conducting an ongoing survey. The survey has confirmed whether there are changes in the subjective evaluation. The other is to ascertain the existence of differences in the environmental assessment due to the difference in the amount of communication. A survey of the workplace was completed in December 2012. A subjective evaluation of the office before moving was carried out in the summer of 2012. A subjective evaluation of the building after moving was surveyed in the spring, summer, and autumn of 2013 and the spring, summer, and autumn of 2014. The building after the relocation is called the Technical Center. The population of the questionnaire was all of the office workers in the Technical Center. For consecutive research, an evaluation of the office workers who responded during the entire research period has been conducted. Office workers who have personnel changes are outside of the survey. The evaluation was analyzed on the basis of the average value of the survey results. Both the POE and SAP were treated as interval scales. Regarding the comprehensive evaluation of the satisfaction of the POE, a statistically significant difference could be confirmed before relocation compared with the autumn of the second year of 2014 after the relocation. However, there was not a significant difference in the period after the relocation. Regarding the satisfaction of the light environment, a decrease in satisfaction has been confirmed in response to an illuminance reduction operation in the autumn of 2014. Regarding the evaluation of the ease of work, there was a significant difference in the change before and after moving. However the change in each period after relocation was lower. The evaluation indicators for the ease of work are as follows: ease of concentration, ease of relaxation, ease of communication with other people, ease of creative activities, and overall satisfaction. Comparing the SAP of the importance of each period after relocation, the thermal environment and air environment exhibited significant differences versus the summer of 2013. In terms of the ease of communication with other people and workplace satisfaction, an evaluation for the group in which the amount of communication was large has a high tendency for both formal and informal communication. The analysis results for the ease of creative activities showed that an evaluation of a group with a large amount of informal communication was significantly higher. The analysis results about task light lighting time percentage at the time of presence showed that an evaluation of a group with a large amount of informal communication was significantly smaller.

Part 1 reported the results obtained by measurements of microbial contamination for the actual conditions of aged welfare facilities. The range of fluctuation in the airborne bacteria and fungi concentrations in the day room increased from 100 to 1000 fold, and various bacilli causing opportunistic infections, such as Staphylococcus hominis, S. epidermidis, Serratia marcescens, Corynebacterium xerosis, C.freneyi, Acinetobacter baumannii, A. calcoaceticus, and Stenotrophomonas maltophilia were detected. In this study, in order to grasp the environment in aged welfare facilities extensively and in detail, a prolonged continuous measurement of the temperature, relative humidity, and carbon dioxide concentration for the same candidate for the investigation in part 1 was performed. Moreover, the typical questionnaire results about the environment management of aged welfare facilities are presented in this paper. The following conclusions became clear from this study. (1) Although the indoor temperature was generally good, as the indoor temperature may fall rapidly, consideration of the time zone when using natural ventilation is required. (2) In December, the relative humidity in seven rooms became lower than 40%, and it continued until February when the investigation ended. The humidity management in social welfare facilities needs to be improved. (3) Although the median value of the CO₂ concentration was generally good, the maximum values of all object rooms were higher than 1000 ppm, and the ventilation needs to be improved in the day room in which many people gather. (4) For environment management, a substantial amount of humidification equipment and ventilation operation need to be suitably managed. Therefore, management organization and management especially according to a specialist are required.

The integrated energy simulation (ES) tool BEST enables comprehensive energy conservation performance evaluations and the evaluation of various energy-saving measures in Japan. However, because the indoor space is modeled with one node for every zone, there are issues when evaluating the room comfort, when reproducing the behavior of air-conditioning systems, and in the prediction accuracy for energy-saving airconditioning systems or when the spatial distribution of the physical quantities in the room covers a particularly large space. For these reasons, several previous studies have been carried out using the coupled simulation of airconditioning systems and computational fluid dynamics (CFD). In this paper, an outline of a coupled simulation focusing on air-conditioning system modules within BEST and a CFD analysis is presented. Furthermore, according to thought of BIM, a reduction method for the input trouble and a data linkage method of BEST and CFD are suggested for the purpose of correct information sharing and unification. As a case study using these methods, we carried out an analysis for an existing office building in Japan. As a result, a BEST-CFD coupled simulation made it possible to reproduce in detail the primary energy consumption of air conditioning along with the behavior of the indoor environment. The standalone BEST calculations could not accurately predict the transitions of heat and air between zones; therefore, differences in the amount of processed heat for each zone and the behavior of the air conditioners in comparison to the coupled simulation occurred. The coupled simulation verified that both the indoor environment and the heat processed by the air conditioning changed in response to a change in the region subject to air-conditioning control. In addition, the data linkage of BEST and CFD allowed for reductions in the labor of the input work and artificial mistakes.

In modern society, people spend more than 90% of the time in indoor spaces. Thus, the Indoor Air Quality (IAQ) created by the building greatly influences the quality of life. Poor indoor environmental conditions are also estimated to be one of the causes of illnesses like asthma and allergic symptoms and to cause a significant loss of productivity because of the adverse effects on health. In recent years, photocatalytic oxidation (PCO) processes have attracted attention. The PCO processes are effective for the purification of indoor air polluted with volatile organic compounds (VOCs), especially at low concentration levels. In this study, kinetic studies were carried out for the PCO of toluene in the gas phase over photocatalysts bound in building material with a 20 L test chamber, and computational fluid dynamics (CFD) simulations were also carried out using the same boundary conditions as the experiments. The building materials that were bound with TiO₂ as photocatalysts onto ceramic tile by a thermal spraying technique without using any binder were prepared and used as photocatalytic building materials. The experiments for investigating photocatalytic reactions were carried out with a rectangular-shaped 20 L test chamber. The performance of the photocatalytic building materials for reducing the contaminant concentration was measured according to the ISO 16000-24 procedure. The gas-phase toluene concentrations were determined using GC/FID. The kinetic equation for toluene photooxidation over the TiO₂ coated building material could be expressed by Langmuir-Hinshelwood-type kinetics. The kinetic parameters for the surface reaction were firstly determined by using experimental results and optimized by using the corresponding CFD simulations considering the nonuniform distributions of toluene on the phtocatalytic building materials. Furthermore, these kinetic parameters were identified and summarized as a function of the illumination intensity.

Generally, indoor heat sources without human thermal load radiate to a relatively high temperature compared to indoor temperature in a fixed position. If the heat emitted from heat sources will be absorbed by chilled water having a similar indoor temperature in directly, it is possible to improve a thermal environment due to a decrease in the distribution of indoor temperature distribution. Furthermore, it is also possible to save HVAC energy by improving the COP (coefficient of performance) of a heat pump by using high-temperature chilled water. This study is a part of a research that plans to realize a "liquid-cooled air-conditioning system", which is embodied in the basic idea of indoor air conditioning. This study consists of several papers; however, this paper shows the heat dissipation characteristics from primary heat sources (LED lighting, personal computer) in an office. This analysis will be the basis for evaluating a thermal environment in a task space, and will be the foundation design data for developing a "liquid heat recovery unit" which is a part of a "liquid cooling air-conditioning system". Reviewed PCs included a laptop and a desktop, and LED lighting was evaluated as a type of recessed lighting. All of them are widely used today. The surface temperature distribution of the target equipment was measured, and the input electric power under the thermal condition was approximately 25°C in the chamber. Then, a coupled simulation of convection and radiation was carried out based on measured data. Analysis results calculated using CFD(computational fluid dynamics) simulation showed that heat dissipation characteristics from target equipment is composed of convection heat and radiation heat from the surface, exhaust heat from an electric fan, and infiltration through surface gaps, such as USB port and keyboard. As a result, the amount of surface heat dissipation emitted to the indoor environment from each target equipment is approximately 35~75% of the total heat transfer, and it is divided into 40% convection and 60% radiation.