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- W2182818438 abstract "The expansion turbine constitutes the most critical component of a large number of cryogenic process plants - air separation units, helium and hydrogen liquefiers, and low temperature refrigerators. Present day cryogenic gas turbines are in more popular as they meet the growing need for low pressure cycles. The present study is aimed at the design of helium cryogenic turboexpander of mixed flow impellers with radial entry and axial discharge. To determine the principal dimensions of the turbine wheel, optimum operating speed has been taken from design charts based on Similarity principles. The main dimensions, thermodynamic properties at different states, velocity and angles at entry and exit of the turbine wheel were worked out. A modest attempt has been made to understand, standardise and document the design of cryogenic turboexpanders. Keyword: Cryogenic, turboexpander, mixed flow turbine, flow angle, flow velocity I. INTRODUCTION The turboexpander or expansion turbine constitute the most critical component of large number of cryogenic process plants like separation unit, helium liquefiers and low temperature refrigerators. The primary function of this unit is to produce cooling by expanding a precooled high pressure gas stream where power is extracted from the fluid and enthalpy of gas decreases. Compared with other expansion devices the use of turboexpander offers greater economy, safety and flexibity." @default.
- W2182818438 created "2016-06-24" @default.
- W2182818438 creator A5072756150 @default.
- W2182818438 date "2014-01-01" @default.
- W2182818438 modified "2023-09-27" @default.
- W2182818438 title "Design of Helium Cryogenic Turboexpander" @default.
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- W2182818438 hasPublicationYear "2014" @default.
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