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Automation of the control processes of the refrigeration units condensers

Authors: Bukaros, Valeriya; Onishchenko, Oleg; Naleva, Galyna; Bukaros, Andrii;

Automation of the control processes of the refrigeration units condensers

Abstract

In the article energy efficient ways of the condensing pressure (temperature) control in refrigeration units for variouspurposes are considered. The comparative analysis of the circuit solutions of the condensing temperature regulators for air coolingcondensers is conducted with simulation methods. Modeling of the single-phase system of the regulator pulse-phase control triacHPC1/4 showed that this system has a low power factor. The feasibility of the condensing temperature regulators implementation onthe basis of the three-phase frequency converter with DC chain is substantiated for the low and medium cooling capacityrefrigeration units. The disadvantages of the existing systems of the condensing pressure stabilization of the refrigeration units watercooling condensers are highlighted. The research of two proposed control systems of the water-cooled condensers of the medium andhigh cooling capacity refrigeration units is conducted. It is established that the using of the principles of partial invariance to maindisturbances with elements of the nonlinear correction can improve the energy efficiency of refrigeration units. Also it is provided bymodeling the processes in the shell and tube capacitor KTP-300 of the ship refrigeration unit that the using of variable structuresystems further improves the dynamic quality of control processes with large fluctuations of the heat loads

Методами імітаційного моделювання проведений порівняльний аналіз схемотехнічних рішень регуляторівтемператури конденсації. Обґрунтовано доцільність реалізації таких регуляторів на базі трифазного перетворювачачастоти з ланкою постійного струму. Проведено дослідження двох систем керування охолодженням водянихконденсаторів холодильних установок. Доведено, що використання запропонованих алгоритмів управління дозволитьпідвищити енергетичну ефективність холодильних установок і якість динамічних процесів управління при значнихколиваннях теплових навантажень

Keywords

холодильна установка; конденсатор; тиск конденсації; регулятор температури конденсації; система керування, refrigeration unit; condenser; condensing pressure; condensing temperature regulator; control system, УДК 681.51:621.316.79, 681.51:621.316.79

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
gold