The 2017 edition of the standard also includes a simplification of Appendix A to a single procedure for calculating operative temperature
, clearly stated requirements and calculation procedures that appear sequentially, an update to the scope to ensure the standard is not used to override health safety, and critical process requirements.
In case of operative temperature
selected as reference temperature, average [h.
In the building with radiant terminals, the long wave radiation between interior surfaces cannot be neglected and the control variable of indoor environment is usually the operative temperature
da]), respectively, with the indoor dry bulb temperature and the operative temperature
similar to those in summer, although the average outdoor temperatures were -7.
Use of operative and standard operative temperature
models in thermal biology.
Air temperature, related humidity as well as operative temperature
and air velocity were measured in the centre of the room using the thermal comfort measurement system with data logger.
Mean thermal sensation votes on operative temperature
are supposed to be reevaluated for thermal comfort of hospital personnel in hot and humid climates.
To evaluate the efficiency of thermoregulation, we used body temperature of 242 individuals taken in the wild, preferred body temperature of these individuals measured on a thermal gradient (16-45[degrees]C) in the laboratory, and operative temperature
obtained by using hollow copper tubes that were sealed at each end, painted the same color as X.
The operative temperature
is the average of the air temperature and the mean radiant temperature of ail of the surfaces surrounding you," explains Peter Alspach, a voting committee member of ASHRAE SSPC 55 on Thermal Comfort and associate principal at Arup, an engineering consulting firm.
From a practical point of view, the personal-dependent model is used to adjust the environmental model which starts with the evaluation of the air velocity to determine the operative temperature
that ensure a predicted mean vote equal to zero.
From the point of view of control of inner thermal condition of building with the operative temperature
as a desired value, the thermal inertia parameters buildings and utilised HVAC system and its control are of equal importance.
Another interesting method is to use the PPD as a function the operative temperature