Changes between Version 5 and Version 6 of doc/tec/biomet/implementation

Timestamp:

Jun 17, 2019 2:34:53 PM (6 years ago)

Author:

dom_dwd_user

Comment:

Added infomration about the implementation of iPT

doc/tec/biomet/implementation

@@ -29 +29 @@
 == Integration ==
 
-Calculations by the thermal comfort part of the biometeorology module are triggered by time integration. For increased performance, thermal indices are only calculated for output timesteps. [[BR]]
+Calculations of the static indices (perct, utci, pet) by the thermal comfort part of the biometeorology module are triggered by time integration. For increased performance, thermal indices are only calculated for output timesteps. [[BR]]
 
-In case of time-averaged thermal indices, the input quantities (see above) are averaged by the biometeorology module if PALM is not already averaging the same quantity itself. Thermal indices are, again, only calculated for the respective output timesteps to avoid unnecessary calculations.
+In case of time-averaged thermal indices, the input quantities (see above) are averaged by the biometeorology module if PALM is not already averaging the same quantity itself. Thermal indices are, again, only calculated for the respective output timesteps to avoid unnecessary calculations.[[BR]]
+
+The thermal comfort calculations for the agent model in terms of the instationary thermal index iPT, however, is called and controlled by the agent module directly. As soon as a new agent is created, the agent module will make a first call to "bio_calc_ipt" passing personal information like age, weight, height, work and sex of the agent. "bio_calc_ipt" will thereby automatically detect that iPT is uninitialized and will run the method "ipt_init" to determine the activity and to initialize energy storage, as well as the clothing temperature. 
+
+Any further call will be directed to "ipt_cycle", that will update energy storage, clothing temperature, as well as the thermal sensation in terms of iPT based on the meteorological conditions at the agents locations and the elapsed time.