MAIN FACTORS WHICH LEAD TO REDUCING THE RELIABILITY OF REVERSE COOLING SYSTEMS

Abstract

Problem statement. The main issues that arise during the operation of circulating cooling systems are the deterioration of thermal and hydraulic characteristics, as well as corrosion processes that lead to increased operating costs for the replacement of equipment and pipelines. This is due to both the input parameters related to water quality and the operating parameters of the system related to the evaporation coefficients and the temperature difference in the circuit. Methods. The research was performed on the basis of the analysis of Ukrainian and foreign scientific sources and reporting data on the specifics of the operation of circulating water supply systems. The influence of various factors on the mode of operation of the system has been studied as a result of our own research. Scientific novelty. The analysis of influence of determining factors on work of system of circulating water supply is carried out. The controlling factor in ensuring the reliability of the circulating water supply system is determined. Practical significance. Теоретичні викладки є важливими з огляду на те, що компанії, які займаються процесами охолодження, як правило, не мають у своєму штаті інженера, який би розбирався в процесах очищення води. Інженери проектувальники теплотехнічної частини проектів не навчаються за даною тематикою і також не розуміють проблему, пов’язану з відсутністю належної підготовки води. Conclusion. A large number of factors that determine the reliability of evaporative cooling systems, shows the complexity of forecasting and calculating its trouble-free operation. The main factors that determine the reliability of evaporative cooling systems include the chemical composition of water, temperature and purge. Blowing can be taken as a control factor in the operation of the reversible system, but the purge itself usually can not prevent the formation of scale, as some compounds exceed the saturation level and settle on heat exchange surfaces and other internal devices of the system. To ensure the reliability of the systems in most cases requires additional water treatment by chemical or physical methods.