东京的一座高科技“智能”建筑开发并引入了一种地板下空调系统。在引入该系统之前，进行了实验和数值模拟研究，以预测其热舒适性和节能效果。系统建成后，室内环境的现场测量和乘客调查有助于评估系统是否实际达到预期性能。对地板扩散器的设计进行了改进，以防止在高冷负荷条件下观察到的气流和脚部局部冷却。这些研究的结果表明，带有改进型出口的地板下空调系统提供的室内环境符合ASHRAE标准55-92推荐的热舒适性要求，并保持良好的室内空气质量（IAQ）。此外，这些研究表明，与传统的天花板扩散器系统相比，地板下空调系统不仅能以更高的效率促进排热，而且还能增加自然能源的使用。 还讨论了将地板下空调应用于“任务/环境”或个性化系统的可能性。研究表明，该系统应被视为未来智能建筑空调系统的合适选择。关键词:1995年，地板下，空调，智能建筑，日本，性能，热舒适，居住者，测量，温度分布，空气流量，空气质量，室内，问卷调查，节能，自然通风，储能引用:研讨会，ASHRAE Trans。1995年，第101卷，第2部分

An underfloor air conditioning system was developed and introduced into a high technology "smart" building in Tokyo. Experiments and numerical simulation studies were carried out prior to the introduction of the system, to preestimate its thermal comfort and energy saving effects. After the construction of the system, field measurement of the indoor environment and occupant surveys helped assess whether the system actually achieved its anticipated performance. The floor diffuser design was improved to prevent draught and local cooling of feet observed under the high cooling load condition. The results of these studies demonstrated that the indoor environment provided by the underfloor air conditioning system with the improved type of outlet meets thermal comfort requirements recommended by ASHRAE Standard 55-92 and maintains good indoor air quality (IAQ). Moreover, these studies revealed that, compared with a conventional ceiling diffuser system, the underfloor air conditioning system not only promotes exhaust heat removal with higher efficiency but also increases the use of natural energy. Possibilities to apply underfloor air conditioning to "task/ambient" or personalised systems were also discussed. The studies suggest that the system should be considered as an appropriate choice available for air conditioning systems in future smart buildings.KEYWORDS: year 1995, underfloor, air conditioning, intelligent buildings, Japan, performance, thermal comfort, occupiers, measuring, temperature distribution, air flow, air quality, indoor, questionnaires, energy conservation, natural ventilation, energy storage