Integral control of hospital environment

Hospital presents a complex indoor environment. Patients, healthcare workers/staff and visitors can not be treated as uniform group with the same needs, demands and conditions for thermal comfort. There is no method or system to provide optimal thermal comfort for everyone besides rational energy use for heating and cooling. The paper presents a design of a smart patient room in which thermal comfort conditions are highly controlled and energy use for heating and cooling minimized. Control system is based on the concept of individualization of personal space. With this respect two systems for heating and cooling are compared on the basis of thermal comfort calculations for two patients and measured energy use for heating and cooling. Human body exergy balance model is used together with building energy model. To control HE a smart system on the basis of fuzzy logic is applied. An individualized personal zone is designed.