Mathematical modeling of heat and mass exchange processes in the evaporative cooler

Nizomjon Usmonov,Adeliya Ivanisova,Shaxlo Mavjudova

doi:10.1051/e3sconf/202130401012

Nizomjon Usmonov, Adeliya Ivanisova + Show 1 more

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https://doi.org/10.1051/e3sconf/202130401012

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Abstract

This article describes the advantages of the widespread using of the evaporative coolers for cooling recycled wastewater in the air conditioning systems in various industries. The mathematical model of heat and mass transfer processes in the evaporative coolers has been developed. The dependence of the changes in the temperature of the air leaving the evaporator on the irrigation density is considered. When comparing the values obtained by using mathematical expressions and experiments, the resulting difference was 6.7%.

Highlights

Great attention is being paid to one of the country's most important economic sectors - the construction of technological equipment for the energy industry, which takes into account modern requirements, such as air conditioning and cooling systems [1, 2]
Energy efficiency is a key component of Uzbekistan's 2017-2021 Strategic Action Plan, which emphasizes reducing energy and resource consumption in the economy through widespread adoption of energy-saving technologies in production
While the cost of electrical energy for air conditioning of buildings has increased significantly, the development of highly efficient cooling systems has become urgent [3] at the production facilities of the republic

Summary

Introduction

Great attention is being paid to one of the country's most important economic sectors - the construction of technological equipment for the energy industry, which takes into account modern requirements, such as air conditioning and cooling systems [1, 2]. In hot and dry summer seasons in Uzbekistan to bring the parameters of the air in the room to comfortable, it is the necessary to use the normalization of the microclimate When it comes to passenger transportation, cooling and humidifying the air in the working and living areas is of special relevance. A significant reduction in electricity consumption for air cooling can be achieved using evaporative-type coolers, where the working substance is water, adiabatic evaporates in a stream of relatively dry air, and a decrease in air temperature is achieved due to the heat of its evaporation [4, 5, 6] In this case, the enthalpy of the air-water system does not change. Energy from external sources is required only to replenish the stock of evaporating water

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