The impact of acclimatisation observed
in the above field studies has also led to the
modification of existing comfort standards/models.
A key example is the work by de Dear and Brager
[25] that contributes to the introduction of an
adaptive comfort model for naturally conditioned
spaces for the first time in ASHRAE Standard 55,
in its 2004 version [29]. Other examples include
the work by Srivajana [18] that adjusts the
Standard Effective Temperature (SET) comfort
scale originally defined by Gagge et al. [30] to
accommodate prediction of thermal sensation
under higher air velocities and lower clo values
commonly found in hot humid climates. Jitkhajornwanich [15] modifies Olgyay’s bioclimatic chart [31]
to take into account the acceptance of higher
temperatures and humidities in hot humid climates
(Figure 1).