Calculation of parameters of radial turboexpanders with high expansion ratios
| Autor: | T. M. Rozenoer, A. B. Davydov, A. N. Sherstyuk |
|---|---|
| Rok vydání: | 1983 |
| Předmět: |
Overall pressure ratio
Physics Isentropic process General Chemical Engineering Turboexpander Energy Engineering and Power Technology Discharge coefficient symbols.namesake Impeller Fuel Technology Mach number Geochemistry and Petrology symbols Atomic physics Compressibility factor Conservation of mass |
| Zdroj: | Chemical and Petroleum Engineering. 19:117-119 |
| ISSN: | 1573-8329 0009-2355 |
| DOI: | 10.1007/bf01150564 |
| Popis: | These peculiarities necessitate refinement of the prevailing procedures for calculating the characteristics of radial gas turbines [1-3]. The calculation was based on the fundamental laws of energy and mass conservation [i, 3, 4]. For this purpose the following designations were adopted: G~ rate of gas flow through the turboexpander, kg/sec; ~, isoentropy index; F, area of the flow-through section, mm2; L, vane height, mm; a, minimum size of the channel neck, m~n; c, absolute gas velocity, m/sec; w, gas velocity in relative motion, m/sec; T, thermodynamic stream temperature, ~ %, reduced stream velocity; ~, pressure ratio in the turboexpander; p, pressure in the stream, MPa; u, peripheral velocity, m/sec; ~, stream density (degree of reactivity), kg/m~; e and 8, stream exit angle respectively for absolute and relative motion, deg; ~, inverse radiality ratio (discharge coefficient); ~, coefficient of speed in the guide apparatus; ~, coefficient of speed in the impeller; z, compressibility factor; ~s, isoentropic efficiency; M, Mach number. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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