Grounding of in-depth exergoeconomic analysis of air conditioning systems

Abstract

ir-conditioning systems are the most energy-intensive of the indoor climate systems. T hey consume all types of energy produced by energy generating companies. Traditional methodological approaches to the estimation of exergy efficiency do not produce correct results. Ukrain ian national standards do not sufficiently provide methodologies for assessing the energy efficiency of air conditioning systems for buildings .A harmonized methodology is required to properly assess the energy consumption of these systems. The relatively low values of the thermodynamic potentials in th e se systems require the analysis of all components of the wet air exergy, which are thermal, mechanical and chemical : humidity and carbon dioxide. An in-depth exergy analysis, taking into account all the components of moist air exergy, reveals new qualities and determines the partial characteristics in the performance indicators of systems and elements. The analysis of the behavior of the thermal exergy component during the air exchange in the room determines the type of air exchange and energy costs. The analysis of all components shows their commensurability and needs to be properly taken into account in the exergo-economic analysis. The results of in-depth exergo-economic analysis show the new qualities of HVAC systems and their elements in the form of relative and absolute energy- efficiency characteristics. They should be used for optimiz ation of the systems (according to the criteria of minimizing energy consumption), design of the energy-efficient solutions and monitoring the energy consumption during operation of the systems. The research results presented in this article are based on real systems data . Methods for determining the performance of systems have been tested when designing and creating new solutions for the systems