Assessing the energy consumption for heating and cooling in hospitals

► A new approach for the calculation of energy consumption. ► Mathematical tool for the calculation of building energy demand is created. ► The results of Mathematical tool are verified through an EnergyPlus. ► Mathematical tool is verified also through series of experiments. This work is a part of a larger project initiated under the patronage of Europe's Information Society, within ICT PSP – ICT Policy Support Programme11Call identifier CIP-ICT-PSP-2008-2, Project full title “Intelligent Energy Efficiency Control in Hospitals”, Project acronym “HosPilot”; www.hospilot.eu. in order to increase energy efficiency in hospitals, using a variety of currently available technologies. A prerequisite for the determination of savings is the accurate calculation of energy consumption and then the application of different methods of intelligent control for the energy savings, which should be combined with a system of expert advices in order to gain the highest efficiency. This study concentrates on the first part of the problem – the creation of a mathematical tool for the exact calculation of room/building energy demands.