Fundamentals of Heat and Mass Transfer
Fundamentals of Heat and Mass Transfer
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Efficient use of energy is an actual problem in many industrial branches. As buildings are the main users of energy in Europe, representing approximately 40 percent of the energy consumption in the European Union, it is essential that more efficient use of energy is implemented in buildings in order to reduce the overall energy consumption. Energy efficiency in buildings depends on the whole concept of the building design, construction and building services installed. Building construction consists mainly of building envelopes and windows that influence heat losses and energy consumption. For that reason, optimized design of building envelopes is considered as an important task within the energy saving measures in buildings. The paper presents results of the evaluation of building envelopes and windows with respect to heat losses and thermal comfort conditions simulated in a reference room. A set of combinations of building envelope constructions were investigated such as heavy, medium and light weight construction in the design combinations of different windows.