Variable refrigerant flow (VRF) systems are known for their high energy performance and thus can improve energy efficiency both in residential and commercial buildings. The energy savings potential of this system has been demonstrated in several studies by comparing the system performance with...

Although developing countries are rapidly urbanizing, many of their citizens still live in rural environments and the majority of the energy use is dominated by the built environment. This study aims to demonstrate the adaptation of the European typology approach for building stock energy...

This paper treats about the problem of nitrogen oxides formation in the process of natural gas combustion. The analysis of the influence of selected combustion parameters on the concentration of NO, N2O and NO2 in the combustion products was done. From many factors determining NOx formation two...