Requirements for thermal comfort study material
2. Requirements
2.2. Metabolic rate
Humans produce heat
from approximately 80 to 1000 W depending on the activity level.
For sedentary activity, as is usually used by administrative buildings, value
of metabolic rate is 1.2 met = 126 W (ISO 7730). The heat generated by a person
can be exchanged with the space in different ways: radiation to surrounding
surfaces, convection to the ambient air, conduction, evaporation, respiration
and excretion. Radiation has the highest heat transfer coefficient, followed by
convection and conduction (ISO 7730). Metabolic rates for typical tasks are
shown in table 6.
