Scientific journal NRU ITMO
Series "Refrigeration and Air Conditioning"
Registration certificate ЭЛ № ФС 77 – 55410 от 17.09.2013
зарегистрировано в Федеральной службе по надзору в сфере связи, информационных технологий и массовых коммуникаций
ISSN:2310-1148

March 2015 (published: 02.03.2015)

Number 1(17)

Home > Issue > Theoretical and experimental investigations of screw expanders

UDC 621.594

Theoretical and experimental investigations of screw expanders

Danilov M.M. , Ivanova Z.N.

Nowadays screw expanders are mostly used in gas and heat-power  brunches of economics. But there is an opportunity of their use in refrigeration industry,particulary, in a new method of solid carbon dioxide, in other words dry ice,obtaining.Investigations screw expanders which are supposed to be used in gas refrigeration unit for dry ice obtaining give us an information about their scope of use, construction features and some important parameters like volume capacity, pressure drop degree and the pressure variations range. The review of investigations  shown us  practical comparability of screw and turbo expanders in the main characteristics. So we can conclude that screw expander can be used in gas refrigeration unit for dry ice obtaining.
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Keywords: carbondioxide, gasrefrigerationunit, screwexpander,turbo expander, volume capacity, preassure drop degree, pressure variations range.

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