Changeset 277 for trunk/eml/pressure_changers/valve.mso
- Timestamp:
- Jun 16, 2007, 5:17:45 PM (16 years ago)
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-
- 1 edited
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trunk/eml/pressure_changers/valve.mso
r270 r277 13 13 * available at http://www.enq.ufrgs.br/alsoc. 14 14 * 15 *--------------------------------------------------------------------16 * Model of valves:17 *18 * - Linear19 * - Parabolic20 * - Equal21 * - Quick22 * - Hyperbolic23 * - valve_simplified: a very simple model24 *25 *--------------------------------------------------------------------26 * - Assumptions27 * * Steady State28 * * Isentalpic29 * * Liquid30 *31 15 *--------------------------------------------------------------------- 32 16 * Author: Estefane Horn, Núbia do Carmo Ferreira … … 34 18 *-------------------------------------------------------------------*# 35 19 36 using "streams";37 20 using "pressure_changers/flux_machine_basic"; 38 21 39 22 40 23 Model valve as flux_machine_basic_PH 24 ATTRIBUTES 25 Pallete = true; 26 Icon = "Valve"; 27 Brief = "Model of a valve."; 28 Info = 29 "Model of valves: 30 * Linear; 31 * Parabolic; 32 * Equal; 33 * Quick; 34 * Hyperbolic. 41 35 36 Assumptions: 37 * Steady State; 38 * Liquid; 39 * Isentalpic. 40 41 Specify: 42 * the valve type; 43 * the inlet stream; 44 * the Volumetric Flow (Qv); 45 * the Valve Coefficient (cv); 46 * the opening (x). 47 "; 48 42 49 PARAMETERS 43 50 valve_type as Switcher (Valid = ["linear", "parabolic", "equal", "quick", "hyperbolic"], Default = "linear"); … … 125 132 *-------------------------------------------------------------------- 126 133 * 127 * Streams:128 * * an inlet stream129 * * an outlet stream130 *131 * Assumptions:132 * * no flashing liquid in the valve133 * * the flow in the valve is adiabatic134 * * dynamics in the valve are neglected135 * * linear flow type136 *137 * Specify:138 * * the inlet stream139 * * one of: plug position (x), outlet temperature (Outlet.T) or140 * outlet pressure (Outlet.P)141 * or142 * * the inlet stream excluding its flow (Inlet.F)143 * * the outlet pressure (Outlet.P) OR outlet flow (Outlet.F)144 * * the plug position (x)145 *146 *147 *----------------------------------------------------------------------148 134 * Author: Paula B. Staudt 149 135 *--------------------------------------------------------------------*# 150 136 Model valve_simplified 137 ATTRIBUTES 138 Pallete = true; 139 Icon = "Valve"; 140 Brief = "Model of a very simple valve - used in distillation column models."; 141 Info = 142 "Assumptions: 143 * no flashing liquid in the valve; 144 * the flow in the valve is adiabatic; 145 * dynamics in the valve are neglected; 146 * linear flow type. 147 148 Specify: 149 * the inlet stream 150 * the plug position (x) OR outlet temperature (Outlet.T) OR outlet pressure (Outlet.P) 151 152 OR 153 154 * the inlet stream excluding its flow (Inlet.F) 155 * the outlet pressure (Outlet.P) OR outlet flow (Outlet.F) 156 * the plug position (x) 157 "; 151 158 152 159 PARAMETERS
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