Air-conditioning systems with breeze-line type outlets are frequently adopted for perimeter zones in intelligent office buildings. However, it is pointed out that several examinations are required for the establishment of design criteria on position and shape of the outlet. The purpose of this study is to establish design criteria for breeze-line type air outlets adopted for perimeter zone in office buildings during winter season. In the first report we described outline of experimental for facilities and the results of the brief examination for a new air-conditioning system with breeze-line type air outlets. In this report, we measured five kinds of thermal environmental index under four kinds of experimental condition. We discussed each thermal environmental property of total six kinds of breeze-line type air outlet for winter season.

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We investigated the influences of both the Si(100) wafer surface conditions and the molecular collision speeds for the adsorption behavior by the molecular dynamics method. In this study, we chose four models of Si(100) wafer, such as the hydrogen-terminated surface, the hydroxy-terminated surface, the oxide surface and the hydrogen-terminated surface with the water molecules. Also, the adsorption of the chemical contaminants, such as Docosahexapentadecan (D5), dibutyl phthalate (DBP), dioctyl phthalate (DOP) and 2-propanol (IPA) which were detected in the environment to manufacture the semiconductor devices, were estimated and compared. We used the cvff as the force field of the molecular dynamics method. As the results, it was confirmed that IPA was more difficult to adsorb to Si surface than the other contaminants. That the chemical contaminants adsorbed onto silicon wafer surface showed a tendency to become easy, when the silicon wafer had water molecules on the surface in the room temperature.

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In this paper, we calculated the amount of variable energy consumption in a model office building with simulation tool and compared the influence of the factors such as characteristics of buildings, the using situation of buildings and the situation of equipments with simulation tool of energy consumption rate for office buildings. We confirmed the applicability of the simulation using a model building, based on the comparison between the actual and the estimated rates of energy consumption in four buildings from 2000 to 2004. By the application of the simulation to 65 buildings in Hiroshima City, it was presumed that it is possible to save more than 5% of energy consumption in all cases and to save 20%〜30% in many cases.

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We develop a simulation model of a targeted cooling plant system for building air-conditioning, and evaluate energy saving performance of the cooling plant system by comparisons with conventional ones. Some energy saving technologies including inverter chillers are introduced in the cooling plant system and each contribution for energy savings of the system is quantitatively clarified. As a result, it is confirmed that the targeted cooling plant system achieves about 45 percent energy saving compared to conventional one. In addition, we study on effective operation strategies of the targeted cooling plant system for more energy savings. The result shows that there is a possibility to save about 13 percent energy consumption by changes of the operation, compared to normal operation of the cooling system.

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