Growing importance of energy as a major economy factor and its large negative impact on the environment has set a demand for a broader and different approach to tackle the problem. One of the most successful measures in reducing the consumption of primal energy is to use of technological improvements in energy systems and development of new energy flow control procedures. This subject will cover energy efficiency as a source for reduction of energy consumption and the emission of the harmful gasses.

Energy efficiency should be considered as a set of organizational activities which are implemented inside of defined boundaries defined by energy system with the purpose of input energy reduction, harmful gasses emission and energy expenditures, with the unchanged status of the services and making a profit in the production process in the defined system. From the sole definition one can get a sense of the complexity of the problem which derives from the human need for connection, procedures and technologies. We must strive to accomplish consistent and permanent improvements in energy efficiency. This subject will acquaint the students with all the technical and non technical aspects of energy efficiency.

Importance of energy management and rational usage of energy; Defining of energy flows; Relations between energy and production; Energy indicators and energy production and consumption profiles; Energy consumption monitoring. Energy efficiency analysis in industry (boiler plants; steam and/or hot water distributive pipe network and end users; cooling and compressed air systems; electrical systems) and buildings (buildings characteristics profile, HVAC systems; electrical consumers). Energy savings measures: technical (energy efficiency improvement of appliances; waste heat usage; recuperation; heat energy accumulation…) and organizational ( energy management: team effort and value of hierarchically valued tasks and activities; motivation and awareness of employees; initiation and incentive in argument for rational energy consumption).

Lectures and exercises. Consultation. Test is done in written form and is a mixture of theoretical questions and numerical problems.