在办公楼的占用区域提供足够的通风而不通风是空调的主要用途之一。最近，一种地板下空调系统（UFAC）被引入，其送风口安装在活动地板面板上，作为一种系统，该系统能够在新一代办公楼的占用区域获得高效通风和防止通风。虽然有一些地板下空调系统，但到目前为止，很少有人对这些系统的热舒适性进行研究。本文讨论了利用UFAC系统进行的主观实验。26名受试者（10名男性和16名女性）参与了实验。在被占用的办公室区域内，发现了能够在没有任何气流的情况下提供舒适条件的气流特性。关键词:热舒适，地板下，空调，通风，办公室，气流。引文:研讨会，ASHRAE交易，第卷。 96磅。1990年3月2日，圣路易斯

Providing enough ventilation without draft in the occupied zone of office buildings is one of the main purposes of air conditioning. Recently, an underfloor air-conditioning system (UFAC) with outlets for supply air mounted in raised floor panels has been introduced as a system that is able to obtain both efficient ventilation and prevent draft in the occupied zone of new generation office buildings. Although there are some underfloor air-conditioning systems, few studies on thermal comfort with those systems have been investigated so far. This paper deals with the subjective experiments utilising a UFAC system. Twenty-six subjects (10 males and 16 females) participated in the experiments. The airflow characteristics that can provide comfortable conditions without any draft were found for the occupied zone of offices.KEYWORDS: thermal comfort, underfloor, air conditioning, ventilation, offices, air flow.