Eduard-Job-Stiftung für Thermo- und Stoffdynamik

Entropieerzeugung in einem Entropiestrom

Setup

Geometry
integration time step 10-5 sec.
(defaults) number of slabs n 50
  simulation time 602 sec, compression: 301 sec., expansion 301 sec.
calorimeter capillary radius r 1 mm
  filling ice + water
  entropy of fusion SS=1.221 Jg-1K-1
  working temperature TS = 273.15 K
cylinder volume V calculated from input
  walls perfect insulator, despite an 10 cm2 patch
  gas ideal
  CV 1.5*R 1 atom          3.5*R 2 atoms
    6.5*R 3 atoms, linear,   6.0*R 3 atoms, bend
conductor cross-sectional area A 10 cm2
  length l 1 cm
Property Constants for the Heat Conductor
Material Index ref.  
    W m-1 K-1 J kg-1 K-1 kg m-3    
Diamond 0 550 520 3500 [1,2]  
Silver 1 417.1 235 10500 [1]  
Gold 2 310 130 10630 [2]  
Copper 3 392.2 385 8900 [1]  
Aluminium 4 233.64 963 2770 [1] for Al 3003
Zinc 5 113 400 7140 [2]  
Chrome-Nickel 6 52.2 460 7400 [2]  
Steel 7 14.0 510 7900 [2] stainless
Concrete 8 1.0 3170 2000 [2] average value
Cork 9 0.5 1800 200 [2] average values
Wood 10 0.15 1200 513   Taken from various web-sites
Styrofoam 11 0.04 1130 40   Taken from various web-sites
  1. Apache Point Observatory, Engineering material properties
    http://www.apo.nmsu.edu/Telescopes/SDSS/eng.papers/19950926_ConversionFactors/
    19950926_MProperties.html
  2. Helmut Felder, Autoelektrik / Grundlagen und Fachwissen, Stand 21.12.02
    http://mitglied.lycos.de/Autoelektrik/Ere.htm