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HEX_Engine.mso @ 135

Last change on this file since 135 was 135, checked in by gerson bicca, 15 years ago
updated models and samples for the new language
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File size: 13.8 KB

Rev	Line
[78]	1	#*-------------------------------------------------------------------
	2	* EMSO Model Library (EML) Copyright (C) 2004 - 2007 ALSOC.
	3	*
	4	* This LIBRARY is free software; you can distribute it and/or modify
	5	* it under the therms of the ALSOC FREE LICENSE as available at
	6	* http://www.enq.ufrgs.br/alsoc.
	7	*
	8	* EMSO Copyright (C) 2004 - 2007 ALSOC, original code
	9	* from http://www.rps.eng.br Copyright (C) 2002-2004.
	10	* All rights reserved.
	11	*
	12	* EMSO is distributed under the therms of the ALSOC LICENSE as
	13	* available at http://www.enq.ufrgs.br/alsoc.
	14	*
	15	--------------------------------------------------------------------
[26]	16	* Heat Exchangers Abstract Models
	17	*--------------------------------------------------------------------
	18	* - Inlet_Main_Stream : Inlet Streams
	19	*--------------------------------------------------------------------
	20	* - Hot : Inlet Hot Stream
	21	* - Cold : Inlet Cold Stream
	22	*--------------------------------------------------------------------
	23	* - Outlet_Main_Stream : Outlet Streams
	24	*--------------------------------------------------------------------
	25	* - Hot : Outlet Hot Stream
	26	* - Cold : Outlet Cold Stream
	27	*--------------------------------------------------------------------
	28	* - Main_Properties : Physical Properties for Hot and Cold Side
	29	*--------------------------------------------------------------------
	30	* Physical_Properties
	31	* Properties_In_Out : Inlet/Outlet Physical Properties
	32	* Properties_Average : Average Physical Properties
	33	* Properties_Wall : Physical Properties at Wall Temperature
	34	*--------------------------------------------------------------------
	35	* - Tube_Side_Main : Tube Side Main Variables
[1]	36	*----------------------------------------------------------------------
[26]	37	* Tube_Pdrop : Tube Side Pressure Drop
	38	* Tube_Heat_Transfer : Tube Side Heat Transfer
	39	*----------------------------------------------------------------------
	40	* - Shell_Side_Main : Shell Side Main Variables
	41	*----------------------------------------------------------------------
	42	* Shell_Pdrop : Shell Side Pressure Drop
	43	* Shell_Heat_Transfer : Shell Side Heat Transfer
	44	*----------------------------------------------------------------------
	45	* - Baffles_Main : Baffles Spacing
	46	*----------------------------------------------------------------------
	47	* - Main_Resistances : Thermal Resistances
	48	*----------------------------------------------------------------------
	49	* - Details_Main : Heat Exchanger Thermal Details
	50	*----------------------------------------------------------------------
	51	* - Main_Pdrop : Heat Exchanger Pressure Drop (Simplified)
	52	* Basic_Pdrop : Hot and Cold Side Pressure Drop
	53	*----------------------------------------------------------------------
[68]	54	* - Main_DoublePipe : Double Pipe Heat Exchanger Block
	55	* DoublePipe_HeatTransfer
	56	* DoublePipe_PressureDrop
	57	*----------------------------------------------------------------------
[1]	58	* Author: Gerson Balbueno Bicca
	59	* $Id: HEX_Engine.mso 135 2007-01-25 20:00:26Z bicca $
	60	--------------------------------------------------------------------#
	61
	62	using "streams";
	63
	64	Model Inlet_Main_Stream
[135]	65
	66	ATTRIBUTES
	67	Pallete = false;
	68	Brief = "write some information";
	69	Info =
	70	"write some information";
	71
[1]	72	VARIABLES
[135]	73	Hot as stream (Brief="Inlet Hot Stream");
	74	Cold as stream (Brief="Inlet Cold Stream");
[110]	75
[1]	76	end
	77
	78	Model Outlet_Main_Stream
[135]	79
	80	ATTRIBUTES
	81	Pallete = false;
	82	Brief = "write some information";
	83	Info =
	84	"write some information";
	85
[1]	86	VARIABLES
[135]	87	# Must be streamPH
	88	Hot as liquid_stream (Brief="Outlet Hot Stream");
	89	Cold as liquid_stream (Brief="Outlet Cold Stream");
[110]	90
[1]	91	end
	92
	93	#=====================================================================
	94	# Heat Exchangers Physical Properties
	95	#=====================================================================
	96
	97	Model Properties_Average
[135]	98
	99	ATTRIBUTES
	100	Pallete = false;
	101	Brief = "write some information";
	102	Info =
	103	"write some information";
	104
[1]	105	VARIABLES
[26]	106	Mw as molweight (Brief="Average Mol Weight",Default=75, Lower=1, Upper=1e8);
[135]	107	T as temperature (Brief="Average Temperature",Lower=50);
	108	P as pressure (Brief="Average Pressure",Default=1, Lower=1e-10, Upper=30);
[26]	109	rho as dens_mass (Brief="Stream Density" ,Default=1000, Lower=1e-3, Upper=5e5);
	110	Mu as viscosity (Brief="Stream Viscosity",Lower=0.0001);
[135]	111	Cp as cp_mol (Brief="Stream Molar Heat Capacity", Upper=1e10);
	112	K as conductivity (Brief="Stream Thermal Conductivity", Default=1.0, Lower=1e-5, Upper=500);
[110]	113
[1]	114	end
	115
	116	Model Properties_In_Out
[135]	117
	118	ATTRIBUTES
	119	Pallete = false;
	120	Brief = "write some information";
	121	Info =
	122	"write some information";
	123
[1]	124	VARIABLES
[135]	125	Fw as flow_mass (Brief="Stream Mass Flow");
	126	rho as dens_mass (Brief="Stream Density" ,Default=1000, Lower=1e-3, Upper=5e5);
	127	Mu as viscosity (Brief="Stream Viscosity",Default=1, Lower=1e-5, Upper=1e5);
	128	Cp as cp_mol (Brief="Stream Molar Heat Capacity", Upper=1e10);
	129	K as conductivity (Brief="Stream Thermal Conductivity", Default=1.0, Lower=1e-5, Upper=500);
[110]	130
[1]	131	end
	132
	133	Model Properties_Wall
[135]	134
	135	ATTRIBUTES
	136	Pallete = false;
	137	Brief = "write some information";
	138	Info =
	139	"write some information";
	140
[1]	141	VARIABLES
[135]	142	Mu as viscosity (Brief="Stream Viscosity",Default=1, Lower=1e-5, Upper=1e5);
	143	Cp as cp_mol (Brief="Stream Molar Heat Capacity", Upper=1e10);
	144	K as conductivity (Brief="Stream Thermal Conductivity", Default=1.0, Lower=1e-5, Upper=500);
	145	Twall as temperature (Brief="Wall Temperature",Lower=50);
[110]	146
[1]	147	end
	148
	149	Model Physical_Properties
[135]	150
	151	ATTRIBUTES
	152	Pallete = false;
	153	Brief = "write some information";
	154	Info =
	155	"write some information";
	156
[1]	157	VARIABLES
[135]	158	Inlet as Properties_In_Out (Brief="Properties at Inlet Stream");
	159	Average as Properties_Average (Brief="Properties at Average Temperature");
	160	Outlet as Properties_In_Out (Brief="Properties at Outlet Stream");
	161	Wall as Properties_Wall (Brief="Properties at Wall Temperature");
[110]	162
[1]	163	end
	164
	165	Model Main_Properties
[135]	166	ATTRIBUTES
	167	Pallete = false;
	168	Brief = "write some information";
	169	Info =
	170	"write some information";
	171
[1]	172	VARIABLES
[135]	173
	174	Hot as Physical_Properties (Brief="Hot Stream");
	175	Cold as Physical_Properties (Brief="Cold Stream");
	176
[1]	177	end
	178
	179	Model Tube_Pdrop
[135]	180
	181	ATTRIBUTES
	182	Pallete = false;
	183	Brief = "write some information";
	184	Info =
	185	"write some information";
	186
[1]	187	VARIABLES
[26]	188	PdTube as press_delta (Brief="Tube Pressure Drop",Default=0.01, Lower=1e-10);
[135]	189	Pdtotal as press_delta (Brief="Total Pressure Drop",Default=0.01, Lower=1e-10);
[26]	190	Pdnozzle_in as press_delta (Brief="Inlet Nozzle Pressure Drop",Default=0.01, Lower=0);
	191	Pdnozzle_out as press_delta (Brief="Outlet Nozzle Pressure Drop",Default=0.01, Lower=0);
	192	Vnozzle_in as velocity (Brief="Inlet Nozzle Velocity",Default=1, Upper=1e5, Lower=0);
	193	Vnozzle_out as velocity (Brief="Outlet Nozzle Velocity",Default=1, Upper=1e5, Lower=0);
[1]	194
	195	EQUATIONS
[26]	196	"Total Pressure Drop"
	197	Pdtotal = PdTube + Pdnozzle_in + Pdnozzle_out;
[1]	198
	199	end
	200
	201	Model Tube_Heat_Transfer
[135]	202
	203	ATTRIBUTES
	204	Pallete = false;
	205	Brief = "write some information";
	206	Info =
	207	"write some information";
	208
[1]	209	VARIABLES
[135]	210	Re as positive (Brief="Tube Side Reynolds Number",Default=1000,Lower=1);
	211	htube as heat_trans_coeff (Brief="Tube Side Film Coefficient",Default=1,Lower=1e-12, Upper=1e6);
	212	PR as positive (Brief="Tube Side Prandtl Number",Default=0.5,Lower=1e-8);
	213	PRw as positive (Brief="Tube Side Prandtl Number at Wall Temperature",Default=0.5,Lower=1e-8);
	214	Phi as positive (Brief="Phi Correction",Default=1,Lower=1e-3);
	215	Vtube as velocity (Brief="Tube Side Velocity",Lower=1e-8);
[110]	216
[1]	217	end
	218
	219	Model Shell_Pdrop
[135]	220
	221	ATTRIBUTES
	222	Pallete = false;
	223	Brief = "write some information";
	224	Info =
	225	"write some information";
	226
[1]	227	VARIABLES
[135]	228	PdCross as press_delta (Brief="Cross Flow Pressure Drop",Default=0.01, Lower=0);
	229	PdEndZones as press_delta (Brief="End Zones Pressure Drop",Default=0.01, Lower=0);
	230	Pdwindow as press_delta (Brief="Window Pressure Drop",Default=0.01, Lower=1e-10);
	231	Pdtotal as press_delta (Brief="Total Pressure Drop",Default=0.01, Lower=0);
	232	Pdnozzle_in as press_delta (Brief="Inlet Nozzle Pressure Drop",Default=0.01, Lower=0);
	233	Pdnozzle_out as press_delta (Brief="Outlet Nozzle Pressure Drop",Default=0.01, Lower=0);
	234	Vnozzle_in as velocity (Brief="Inlet Nozzle Velocity",Default=1, Upper=1e5, Lower=0);
	235	Vnozzle_out as velocity (Brief="Outlet Nozzle Velocity",Default=1, Upper=1e5, Lower=0);
	236	RVsquare_out as positive (Brief = "Outlet Nozzle rho-V^2", Default=1, Upper=1e6, Unit = "kg/s^2/m");
	237	RVsquare_in as positive (Brief = "Inlet Nozzle rho-V^2", Default=1, Upper=1e6, Unit = "kg/s^2/m");
[1]	238
	239	EQUATIONS
[26]	240	"Shell Side Total Pressure Drop"
	241	Pdtotal = PdCross + PdEndZones + Pdnozzle_in + Pdnozzle_out + Pdwindow;
[1]	242
	243	end
	244
	245	Model Shell_Heat_Transfer
[135]	246
	247	ATTRIBUTES
	248	Pallete = false;
	249	Brief = "write some information";
	250	Info =
	251	"write some information";
	252
[1]	253	VARIABLES
[135]	254	Re as positive (Brief="Shell Side Reynolds Number",Default=100,Lower=1);
	255	PR as positive (Brief="Shell Side Prandtl Number",Default=0.7,Lower=1e-6);
	256	PRw as positive (Brief="Shell Side Prandtl Number",Default=0.5,Lower=1e-8);
[1]	257	hshell as heat_trans_coeff (Brief="Shell Side Film Coefficient",Default=1,Lower=1e-12, Upper=1e6);
[135]	258	Phi as positive (Brief="Phi Correction",Default=1,Lower=1e-3);
[1]	259	Ji as constant (Brief="Shell Side Ji Factor",Default=0.05);
[135]	260	Jr as positive (Brief="Shell Side Jr Factor",Lower=10e-6);
	261	Jl as positive (Brief="Shell Side Jl Factor",Lower=10e-6);
	262	Jb as positive (Brief="Shell Side Jb Factor",Lower=10e-6);
	263	Jc as positive (Brief="Shell Side Jc Factor",Lower=10e-6);
	264	Js as positive (Brief="Shell Side Js Factor",Lower=10e-6);
	265	Jtotal as positive (Brief="Shell Side Jtotal Factor",Lower=10e-6);
	266	Sm as area (Brief="Shell Side Cross Flow Area",Default=0.05,Lower=10e-6);
[1]	267
	268	end
	269
	270	Model Baffles_Main
[135]	271
	272	ATTRIBUTES
	273	Pallete = false;
	274	Brief = "write some information";
	275	Info =
	276	"write some information";
	277
[1]	278	VARIABLES
[135]	279	Ls as length (Brief="Central Baffle Spacing",Lower=1e-8);
[1]	280	Lsi as length (Brief="Inlet Baffle Spacing",Lower=1e-8);
	281	Lso as length (Brief="Outlet Baffle Spacing",Lower=1e-8);
	282
	283	end
	284
	285	Model Main_Resistances
[135]	286
	287	ATTRIBUTES
	288	Pallete = false;
	289	Brief = "write some information";
	290	Info =
	291	"write some information";
	292
[1]	293	VARIABLES
[110]	294
[26]	295	Rtube as positive (Brief="Tube Resistance",Unit="m^2*K/kW",Lower=1e-6);
[135]	296	Rwall as positive (Brief="Wall Resistance",Unit="m^2*K/kW",Lower=1e-6);
	297	Rshell as positive (Brief="Shell Resistance",Unit="m^2*K/kW",Lower=1e-6);
	298	Rfi as positive (Brief="Inside Fouling Resistance",Unit="m^2*K/kW",Default=1e-6,Lower=0);
[100]	299	Rfo as positive (Brief="Outside Fouling Resistance",Unit="m^2*K/kW",Default=1e-6,Lower=0);
[110]	300
[1]	301	end
	302
	303	Model Details_Main
[135]	304
	305	ATTRIBUTES
	306	Pallete = false;
	307	Brief = "write some information";
	308	Info =
	309	"write some information";
	310
[1]	311	VARIABLES
[135]	312	A as area (Brief="Exchange Surface Area");
	313	Q as power (Brief="Heat Transfer", Default=7000, Lower=1e-6, Upper=1e10);
	314	Uc as heat_trans_coeff (Brief="Overall Heat Transfer Coefficient Clean",Default=1,Lower=1e-6,Upper=1e10);
	315	Ud as heat_trans_coeff (Brief="Overall Heat Transfer Coefficient Dirty",Default=1,Lower=1e-6,Upper=1e10);
	316	Ch as positive (Brief="Hot Stream Heat Capacity",Lower=1e-3,Default=1e3,Unit="W/K");
	317	Cc as positive (Brief="Cold Stream Heat Capacity",Lower=1e-3,Default=1e3,Unit="W/K");
	318	Cr as positive (Brief="Heat Capacity Ratio",Default=0.5,Lower=1e-6);
	319	Cmin as positive (Brief="Minimum Heat Capacity",Lower=1e-10,Default=1e3,Unit="W/K");
	320	Cmax as positive (Brief="Maximum Heat Capacity",Lower=1e-10,Default=1e3,Unit="W/K");
	321	NTU as positive (Brief="Number of Units Transference",Default=0.05,Lower=1e-10);
[1]	322
	323	EQUATIONS
	324	"Number of Units Transference"
[100]	325	NTUCmin = UdA;
[110]	326
[1]	327	end
	328
[26]	329	Model Tube_Side_Main
[135]	330
	331	ATTRIBUTES
	332	Pallete = false;
	333	Brief = "write some information";
	334	Info =
	335	"write some information";
	336
[26]	337	VARIABLES
[135]	338	PressureDrop as Tube_Pdrop (Brief="Tube Side Pressure Drop");
	339	HeatTransfer as Tube_Heat_Transfer (Brief="Tube Side Heat Transfer");
[110]	340
[26]	341	end
	342
	343	Model Shell_Side_Main
[135]	344
	345	ATTRIBUTES
	346	Pallete = false;
	347	Brief = "write some information";
	348	Info =
	349	"write some information";
	350
[26]	351	VARIABLES
[135]	352	PressureDrop as Shell_Pdrop (Brief="Shell Side Pressure Drop");
	353	HeatTransfer as Shell_Heat_Transfer (Brief= "Shell Side Heat Transfer");
[110]	354
[26]	355	end
	356
[1]	357	Model Basic_Pdrop
[135]	358
	359	ATTRIBUTES
	360	Pallete = false;
	361	Brief = "write some information";
	362	Info =
	363	"write some information";
	364
[1]	365	VARIABLES
[26]	366	Pdrop as press_delta (Brief="Pressure Drop",Default=0.01, Lower=0);
	367	FPdrop as Real (Brief="Pressure Drop : Fraction of Inlet",Lower=0,Upper=0.8);
[110]	368
[1]	369	end
	370
	371	Model Main_Pdrop
[135]	372
	373	ATTRIBUTES
	374	Pallete = false;
	375	Brief = "write some information";
	376	Info =
	377	"write some information";
	378
[1]	379	VARIABLES
[135]	380	Hot as Basic_Pdrop (Brief="Hot Stream");
	381	Cold as Basic_Pdrop (Brief="Cold Stream");
[110]	382
[1]	383	end
[68]	384
	385	Model DoublePipe_HeatTransfer
[135]	386
	387	ATTRIBUTES
	388	Pallete = false;
	389	Brief = "write some information";
	390	Info =
	391	"write some information";
	392
[68]	393	PARAMETERS
[135]	394	As as area (Brief="Cross Sectional Area for Flow",Default=0.05,Lower=1e-8);
	395	Dh as length (Brief="Hydraulic Diameter of Pipe for Heat Transfer",Lower=1e-8);
[68]	396
	397	VARIABLES
[135]	398	Re as positive (Brief="Reynolds Number",Default=100,Lower=1);
[68]	399	hcoeff as heat_trans_coeff (Brief="Film Coefficient",Default=1,Lower=1e-12, Upper=1e6);
[135]	400	PR as positive (Brief="Prandtl Number",Default=0.5,Lower=1e-8);
	401	Phi as positive (Brief="Phi Correction",Default=1,Lower=1e-3);
	402	Vmean as velocity (Brief="Tube Velocity",Lower=1e-8);
[110]	403
[68]	404	end
	405
	406	Model DoublePipe_PressureDrop
[135]	407
	408	ATTRIBUTES
	409	Pallete = false;
	410	Brief = "write some information";
	411	Info =
	412	"write some information";
	413
[68]	414	PARAMETERS
	415	Dh as length (Brief="Hydraulic Diameter of Pipe for Pressure Drop",Lower=1e-6);
	416
	417	VARIABLES
	418	Pdrop as press_delta (Brief="Pressure Drop",Default=0.01, Lower=1e-10);
	419	fi as fricfactor (Brief="Friction Factor", Default=0.05, Lower=1e-10, Upper=2000);
[135]	420	Re as positive (Brief="Reynolds Number",Default=100,Lower=1);
[110]	421
[68]	422	end
	423
	424	Model Main_DoublePipe
[135]	425
	426	ATTRIBUTES
	427	Pallete = false;
	428	Brief = "write some information";
	429	Info =
	430	"write some information";
	431
[68]	432	VARIABLES
[135]	433	HeatTransfer as DoublePipe_HeatTransfer (Brief="Double Pipe Heat Transfer");
	434	PressureDrop as DoublePipe_PressureDrop (Brief="Double Pipe Pressure Drop");
[110]	435
[68]	436	end

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