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THE METHOD OF GAS-DYNAMIC CALCULATION OF NITROGEN CRYOSURGICAL APPARATUS

https://doi.org/10.51523/2708-6011.2015-12-4-20

Abstract

The article considers the typical scheme of a nitrogen cryosurgical apparatus and describes the apparatus units such as the container with liquid nitrogen, capillaries to supply liquid and discard vapor phase of nitrogen, cryoprobe and operational tips. Methodologies for calculating hydraulic losses along the capillaries, local hydrodynamic resistances and level differences of the liquid phase of nitrogen in the container and cryoprobe have been reported. The maximum and minimum values of nitrogen pressure in the container have been calculated.

About the Author

Anwar Ali Vesam
Odessa National Academy of Food Technologies Institute of Refrigeration, Cryotechnology and Ecoenergetics named after V. S. Martynovsky
Belarus


References

1. Наер, В. А. Криохирургические аппараты - аккумуляторы холода / В. А. Наер, А. В.Роженцев, Хасан Весам Анвар Али // Холодильная техника и технология. - 2014. - № 6.

2. Штеренлихт, Д. В. Гидравлика / Д. В. Штеренлихт: кн. 1. - М.: Энергоатомиздат, 1981.

3. Дейч, М. Е. Гидрогазодинамика / М. Е. Дейч, А. Е. Зарянкин. - М.: Энергоатомиздат, 1984.


Review

For citations:


Vesam A.A. THE METHOD OF GAS-DYNAMIC CALCULATION OF NITROGEN CRYOSURGICAL APPARATUS. Health and Ecology Issues. 2015;(4):101-105. (In Russ.) https://doi.org/10.51523/2708-6011.2015-12-4-20

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ISSN 2220-0967 (Print)
ISSN 2708-6011 (Online)