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Методика расчета характеристик криогенного термокомпрессора

Методика расчета характеристик криогенного термокомпрессора

Abstract

В данной статье рассматривается применение термокомпрессора с температурой холодной области, равной температуре сжиженного природного газа. Ключевой отличительной чертой данного устройства является возможность повышать давление без совершения механической работы над рабочим телом. Это осуществляется за счет того, что процессы нагрева и охлаждения в термокомпрессоре происходят при одинаковом объеме. Мощность привода расходуется только на преодоление гидравлических потерь. Рассматриваются преимущества и недостатки данного устройства. Создана математическая модель, учитывающая реальность рабочего тела, находящегося в холодной полости и регенераторе. Построены зависимость производительности термокомпрессора от отношения температур и от частоты. В результате анализа получившихся зависимостей было подобрано оптимальное значение частоты, равное 0,7 Гц. Была дана оценка целесообразности использования термокомпрессора для работы на сжиженного природном газе.

This article describes application of the thermocompressor with the cold chamber temperature equal to temperature of liquid natural gas. The main distinctive feature of this device is an ability to increase pressure without compression of working fluid. It is possible by isochoric heating and refrigeration in thermocompressor. Power is required for overcoming friction. Also this article deals with advantages and disadvantages of the thermocompressor. Mathematical model was created with account for reality of working fluid situated in the cold chamber and regenerator. Thermocompressor's capacity relative to frequency and temperatures was plotted. Analysis of this dependencies was carried out, and the optimum of frequency was determined. Appraise of the thermocompressor's application with liquid natural gas was made.

Keywords

ТЕРМОМЕХАНИЧЕСКИЙ КОМПРЕССОР,THERMOMECHANICAL COMPRESSOR,ИЗОХОРНЫЙ ПРОЦЕСС,ISOCHORIC PROCESSES,СЖИЖЕННЫЙ ПРИРОДНЫЙ ГАЗ,LIQUID NATURAL GAS,ИДЕАЛЬНЫЙ ГАЗ,IDEAL GAS,РЕАЛЬНЫЙ ГАЗ,REAL GAS

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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!
0
Average
Average
Average
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