Le fluide R134A (1,1,1,2-tetrafluoroéthane) est utilisé dans les machines réfrigérantes.
Fichier de données : thermoR134A.txt.
import numpy from matplotlib.pyplot import * M = numpy.loadtxt("thermoR134A.txt",unpack=True) P = M[1]*1.0/100 T = M[0] vliq = M[2] vgaz = M[3] hliq = M[6] hgaz = M[8] sliq = M[9] sgaz = M[10]
figure(figsize=(8,6)) plot(T,P) yscale('log') xlabel('T (C)') ylabel('P (bar)') title("R134A") grid()Figure pleine page
figure(figsize=(8,6)) plot(vliq,P,'b') plot(vgaz,P,'b') xscale('log') yscale('log') xlabel('v (m^3/kg)') ylabel('P (bar)') title("R134A") grid()Figure pleine page
figure(figsize=(8,6)) plot(hliq,P,'b') plot(hgaz,P,'b') yscale('log') xlabel('h (kJ/kg)') ylabel('P (bar)') title("R134A") grid()Figure pleine page
figure(figsize=(8,6)) plot(sliq,T,'b') plot(sgaz,T,'b') yscale('log') xlabel('s (kJ/K/kg)') ylabel('T (C)') title("R134A") grid()Figure pleine page