Thermal adaptation plays crucial role in energy efficient operation of buildings without compromising with human thermal comfort. Elevated air velocity is commonly desired to restore comfort requirements at higher temperatures especially in NV and MM buildings located in tropical countries like India. This article is the systematic field study comprising a total of 4872 responses (1874 from NV buildings and 2998 from MM buildings) collected over a period of six years (2011–2017) during summer and moderate seasons under composite climate of Jaipur (India). Subjects’ responses and concurrent field measurements were utilized to investigate the impact of elevated air velocity on indoor thermal comfort. This research is a first attempt of its kind that deals with graphical quantification of air velocity required to offset increased temperature and follows similar approach as presented in ISO 7730. A redefined air velocity offset chart for Indian subjects working in office buildings has been proposed using the evidences (i.e. comfort expectations, preferences and local adaptation) collected from actual field observations. Thus, the offset in comfort operative temperature from base value of 28.04 °C and 26.93 °C for NV and MM buildings were obtained to be 4.78 °C and 4.24 °C, respectively for the elevated air velocity of 1.5 m/s.

在不影响人类的热舒适性的前提下，热适应在建筑物的节能运行中起着至关重要的作用。通常需要提高风速以恢复较高温度下的舒适性要求，尤其是在位于印度等热带国家的NV和MM建筑物中。本文是一项系统的现场研究，在斋浦尔（印度）的复合气候下，在夏季和中温季节的六年（2011-2017年）期间，共收集了4872份响应（NV建筑物1874响应，MM建筑物2998响应）。利用受试者的反应和同时进行的现场测量来研究空气流速升高对室内热舒适性的影响。这项研究是此类尝试的首次尝试，该过程涉及抵消温度升高所需的风速的图形化量化，并且遵循与ISO 7730中介绍的类似方法。针对使用办公楼工作的印度受试者，提出了一种重新定义的风速偏移图。从实际现场观察中收集的证据（即舒适期望，偏好和局部适应性）。因此，对于NV和MM建筑，舒适操作温度相对于基准值28.04°C和26.93°C的偏移量对于1.5 m / s的较高风速分别为4.78°C和4.24°C。偏好和当地适应性）。因此，对于NV和MM建筑，舒适操作温度相对于基准值28.04°C和26.93°C的偏移量对于1.5 m / s的较高风速分别为4.78°C和4.24°C。偏好和当地适应性）。因此，对于NV和MM建筑，舒适操作温度相对于基准值28.04°C和26.93°C的偏移量对于1.5 m / s的较高风速分别为4.78°C和4.24°C。