Selection of optimal design of heat exchanger for regenerative indirect evaporative cooling

Abstract

Air conditioning solves the problem of ensuring the specified microclimate parameters in industrial, public and residential buildings. Maintaining comfortable conditions contributes to maintaining the health of workers and increasing labor productivity. At the same time, energy costs for ventilation and air conditioning systems constitute a significant part of a building's energy consumption. That is, a rather contradictory situation arises - on the one hand, to reduce production costs it is necessary to widely introduce air conditioning systems, on the other hand it is necessary to strive to reduce the capital and operating costs of such systems. In large cities, due to the high density of buildings, it is also necessary to strive to reduce the area occupied by air conditioning equipment and its energy consumption. An important factor is also the constant increase in electricity tariffs and the high cost of connecting to city power grids. The development of new, non-traditional approaches to air cooling in air conditioning systems is required. To improve the energy efficiency of air conditioning units, it is proposed to use water evaporative cooling. Despite their high efficiency, air conditioning units operating using only the principles of water evaporative cooling are not able to provide comfortable microclimate parameters in all climatic zones.