Study on Optimum Air-Conditioning Control System for Energy Conservation Field Assessment of the Thermal Comfort of Occupants in Office

摘要

One of the most effective methods to reduce energy consumption in buildings is to install the advanced HVAC equipments and to control them properly, and it must consider the influence of thermal property of the building envelope, occupants' schedule, heat generation from the OA apparatus, etc. To achieve the target, it may be pursued by the embedded system, BACFlex, including BEMS, predictive simulation and related control systems, as often mentioned in the future of the building si mulation. Also the monitoring, the simulation and the measurement in terms of cost, CO2 emission, PMV, etc, are important to show the result to the users in order to feedback from their opinions to improve the system performance. The surveys such as questionnaire, monitoring and interviewing concerning to thermal comfort, clothing, etc. were carried out with occupants in office under optimum air-conditioning control by BACFlex system in summer period. The PMV was calculated based on the measurement data to compare the optimum do value between the measurement and simulation. The major results of survey were bellow; 1. When the indoor temperature was over 27 degree, there were some complaints about discomfort from occupants with heavy clothing. 2. The occupants can work comfortably under the condition of indoor temperature 26 degree and 0.5 clo by the simulation result. As the outlook of the study, the viewer as the interface that considers the opinion of occupants is necessary to indicate what the optimum clothing, to moderate thermal discomfort and to conserve energy as the result.