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Contrastive Analysis of Two Modeling Methods for Dynamic Simulation of Evaporator(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2009年02期
Page:
22-28
Research Field:
Publishing date:

Info

Title:
Contrastive Analysis of Two Modeling Methods for Dynamic Simulation of Evaporator
Author(s):
Chen Wei; Huang Hu
School of Power Engineering,Nanjing Normal University,Nanjing 210042,China
Keywords:
evaporato r;  dynam ic sim ulation;  m ov ing-boundarym ethod;  ex tended mov ing-bounda ry m ethod
PACS:
TB65
DOI:
-
Abstract:
The refr ige rant has a com plex phase transition w hen flow ing through the heat exchange r p ipe line, so it is the emphas is and difficu lty to obta in the dynam icm ode ls of heat exchange rwh ich can descr ibe the phase transition accurately. In th is paper, tw omode lingm ethods fo r dynam ic simu lation o f evapo rato r are analyzed: m ov ing-boundarymode,l and ex tended m ov ing-boundarym ode.l Based on themode ling theo ry of extended m ov ing-boundarym ode,l the dynam icmode l o f evapo ra tor is de rived. By sim ulation ana lysis and compar ison w ith the resu lts o fmov ing-boundary mode,l it is found tha t both m odeling m ethods can describe the response o f evaporato r dynam ic perform ance, but they have super ior ity in d ifferen t conditions respective ly. The conclusions may prov ide a theoretica l founda tion for the dynam ic sim ulation of the re frigeration and air cond ition system.

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Last Update: 2013-04-23