APPLICATION OF CAD TECHNOLOGIES FOR RESEARCH OF HEAT EXCHANGE UNITS OF MICROCLIMATE SYSTEMS BASED ON ALTERNATIVE ENERGY SOURCES

Abstract

. Saving fuel and energy resources is now becoming one of the most important areas of transition of Ukraine's economy to the path of intensive development and rational use of nature. An important direction in the development of modern energy is the development of clean energy based on alternative energy sources for energy supply. One of the ways to solve this problem is to use in microclimate systems for various purposes combined heat supply system, which includes several sources of heat (traditional or renewable), its purpose – to compensate for heat loss through external enclosing structures, supply and exhaust ventilation systems and hot water supply to consumers. Energy accumulation was used to coordinate the modes of heat generation and consumption. A study of the efficiency of battery capacity has been conducted for various connection schemes of heat generators and consumers. With the help of the automated design system the method of efficient operation of the heat accumulator is developed, at research of dynamics of heating of the heat carrier in a tank of the heat accumulator at various schemes of connection. As a result of researches of heat exchange installation by means of the specialized software complex it is received that at cross connection of the generator and the consumer of heat to the accumulator tank, average temperature of heat exchange accumulating material practically coincides with temperature of the return highway that testifies to more uniform temperature field in heat accumulator volume. At the same time, when charging and discharging the heat accumulator, there is a complete coincidence of temperature change graphs for both periods.